Question: When did Spielberg first play a video game?

Answer: 1974

<hl> Since playing Pong while filming Jaws in 1974 , Spielberg has been an avid video gamer. <hl> Spielberg played many of LucasArts adventure games, including the first Monkey Island games. He owns a Wii, a PlayStation 3, a PSP, and Xbox 360, and enjoys playing first-person shooters such as the Medal of Honor series and Call of Duty 4: Modern Warfare. He has also criticized the use of cut scenes in games, calling them intrusive, and feels making story flow naturally into the gameplay is a challenge for future game developers.

Since playing Pong while filming Jaws in <hl> 1974 <hl>, Spielberg has been an avid video gamer. Spielberg played many of LucasArts adventure games, including the first Monkey Island games. He owns a Wii, a PlayStation 3, a PSP, and Xbox 360, and enjoys playing first-person shooters such as the Medal of Honor series and Call of Duty 4: Modern Warfare. He has also criticized the use of cut scenes in games, calling them intrusive, and feels making story flow naturally into the gameplay is a challenge for future game developers.

Since playing Pong while filming Jaws in <hl> 1974 <hl> , Spielberg has been an avid video gamer.


Question: What movie was Spielberg working on when he first played Pong?

Since playing Pong while filming Jaws in 1974, Spielberg has been an avid video gamer. Spielberg played many of LucasArts adventure games, including the first Monkey Island games. He owns a Wii, a PlayStation 3, a PSP, and Xbox 360, and enjoys playing first-person shooters such as the Medal of Honor series and Call of Duty 4: Modern Warfare. He has also criticized the use of cut scenes in games, calling them intrusive, and feels making story flow naturally into the gameplay is a challenge for future game developers.

Answer: Jaws

<hl> Since playing Pong while filming Jaws in 1974, Spielberg has been an avid video gamer. <hl> Spielberg played many of LucasArts adventure games, including the first Monkey Island games. He owns a Wii, a PlayStation 3, a PSP, and Xbox 360, and enjoys playing first-person shooters such as the Medal of Honor series and Call of Duty 4: Modern Warfare. He has also criticized the use of cut scenes in games, calling them intrusive, and feels making story flow naturally into the gameplay is a challenge for future game developers.

Since playing Pong while filming <hl> Jaws <hl> in 1974, Spielberg has been an avid video gamer. Spielberg played many of LucasArts adventure games, including the first Monkey Island games. He owns a Wii, a PlayStation 3, a PSP, and Xbox 360, and enjoys playing first-person shooters such as the Medal of Honor series and Call of Duty 4: Modern Warfare. He has also criticized the use of cut scenes in games, calling them intrusive, and feels making story flow naturally into the gameplay is a challenge for future game developers.


Question: What game consoles does Spielberg own?

Answer: a Wii, a PlayStation 3, a PSP, and Xbox 360

Since playing Pong while filming Jaws in 1974, Spielberg has been an avid video gamer. Spielberg played many of LucasArts adventure games, including the first Monkey Island games. <hl> He owns a Wii, a PlayStation 3, a PSP, and Xbox 360 , <hl> and enjoys playing first-person shooters such as the Medal of Honor series and Call of Duty 4: Modern Warfare. He has also criticized the use of cut scenes in games, calling them intrusive, and feels making story flow naturally into the gameplay is a challenge for future game developers.

Since playing Pong while filming Jaws in 1974, Spielberg has been an avid video gamer. Spielberg played many of LucasArts adventure games, including the first Monkey Island games. He owns <hl> a Wii, a PlayStation 3, a PSP, and Xbox 360 <hl>, and enjoys playing first-person shooters such as the Medal of Honor series and Call of Duty 4: Modern Warfare. He has also criticized the use of cut scenes in games, calling them intrusive, and feels making story flow naturally into the gameplay is a challenge for future game developers.

He owns <hl> a Wii, a PlayStation 3, a PSP, and Xbox 360 <hl> ,


Question: How does Spielberg feel about cutscenes in games?

Answer: intrusive

Since playing Pong while filming Jaws in 1974, Spielberg has been an avid video gamer. Spielberg played many of LucasArts adventure games, including the first Monkey Island games. He owns a Wii, a PlayStation 3, a PSP, and Xbox 360, and enjoys playing first-person shooters such as the Medal of Honor series and Call of Duty 4: Modern Warfare. <hl> He has also criticized the use of cut scenes in games, calling them intrusive , and feels making story flow naturally into the gameplay is a challenge for future game developers. <hl>

Since playing Pong while filming Jaws in 1974, Spielberg has been an avid video gamer. Spielberg played many of LucasArts adventure games, including the first Monkey Island games. He owns a Wii, a PlayStation 3, a PSP, and Xbox 360, and enjoys playing first-person shooters such as the Medal of Honor series and Call of Duty 4: Modern Warfare. He has also criticized the use of cut scenes in games, calling them <hl> intrusive <hl>, and feels making story flow naturally into the gameplay is a challenge for future game developers.

He has also criticized the use of cut scenes in games, calling them <hl> intrusive <hl> , and feels making story flow naturally into the gameplay is a challenge for future game developers.


Question: What Boy Scout merit badge did Spielberg help develop?

Drawing from his own experiences in Scouting, Spielberg helped the Boy Scouts of America develop a merit badge in cinematography in order to help promote filmmaking as a marketable skill. The badge was launched at the 1989 National Scout Jamboree, which Spielberg attended, and where he personally counseled many boys in their work on requirements. That same year, 1989, saw the release of Indiana Jones and the Last Crusade. The opening scene shows a teenage Indiana Jones in scout uniform bearing the rank of a Life Scout. Spielberg stated he made Indiana Jones a Boy Scout in honor of his experience in Scouting. For his career accomplishments, service to others, and dedication to a new merit badge Spielberg was awarded the Distinguished Eagle Scout Award.

Answer: cinematography

<hl> Drawing from his own experiences in Scouting, Spielberg helped the Boy Scouts of America develop a merit badge in cinematography in order to help promote filmmaking as a marketable skill. <hl> The badge was launched at the 1989 National Scout Jamboree, which Spielberg attended, and where he personally counseled many boys in their work on requirements. That same year, 1989, saw the release of Indiana Jones and the Last Crusade. The opening scene shows a teenage Indiana Jones in scout uniform bearing the rank of a Life Scout. Spielberg stated he made Indiana Jones a Boy Scout in honor of his experience in Scouting. For his career accomplishments, service to others, and dedication to a new merit badge Spielberg was awarded the Distinguished Eagle Scout Award.

Drawing from his own experiences in Scouting, Spielberg helped the Boy Scouts of America develop a merit badge in <hl> cinematography <hl> in order to help promote filmmaking as a marketable skill. The badge was launched at the 1989 National Scout Jamboree, which Spielberg attended, and where he personally counseled many boys in their work on requirements. That same year, 1989, saw the release of Indiana Jones and the Last Crusade. The opening scene shows a teenage Indiana Jones in scout uniform bearing the rank of a Life Scout. Spielberg stated he made Indiana Jones a Boy Scout in honor of his experience in Scouting. For his career accomplishments, service to others, and dedication to a new merit badge Spielberg was awarded the Distinguished Eagle Scout Award.


Question: Which Spielberg movie showed its main character was a Boy Scout?

Answer: Indiana Jones and the Last Crusade

Drawing from his own experiences in Scouting, Spielberg helped the Boy Scouts of America develop a merit badge in cinematography in order to help promote filmmaking as a marketable skill. The badge was launched at the 1989 National Scout Jamboree, which Spielberg attended, and where he personally counseled many boys in their work on requirements. <hl> That same year, 1989, saw the release of Indiana Jones and the Last Crusade . <hl> The opening scene shows a teenage Indiana Jones in scout uniform bearing the rank of a Life Scout. Spielberg stated he made Indiana Jones a Boy Scout in honor of his experience in Scouting. For his career accomplishments, service to others, and dedication to a new merit badge Spielberg was awarded the Distinguished Eagle Scout Award.

Drawing from his own experiences in Scouting, Spielberg helped the Boy Scouts of America develop a merit badge in cinematography in order to help promote filmmaking as a marketable skill. The badge was launched at the 1989 National Scout Jamboree, which Spielberg attended, and where he personally counseled many boys in their work on requirements. That same year, 1989, saw the release of <hl> Indiana Jones and the Last Crusade <hl>. The opening scene shows a teenage Indiana Jones in scout uniform bearing the rank of a Life Scout. Spielberg stated he made Indiana Jones a Boy Scout in honor of his experience in Scouting. For his career accomplishments, service to others, and dedication to a new merit badge Spielberg was awarded the Distinguished Eagle Scout Award.

That same year, 1989, saw the release of <hl> Indiana Jones and the Last Crusade <hl> .


Question: What was Indy's rank in Boy Scouts when shown in a movie?

Answer: Life Scout

Drawing from his own experiences in Scouting, Spielberg helped the Boy Scouts of America develop a merit badge in cinematography in order to help promote filmmaking as a marketable skill. The badge was launched at the 1989 National Scout Jamboree, which Spielberg attended, and where he personally counseled many boys in their work on requirements. That same year, 1989, saw the release of Indiana Jones and the Last Crusade. <hl> The opening scene shows a teenage Indiana Jones in scout uniform bearing the rank of a Life Scout . <hl> Spielberg stated he made Indiana Jones a Boy Scout in honor of his experience in Scouting. For his career accomplishments, service to others, and dedication to a new merit badge Spielberg was awarded the Distinguished Eagle Scout Award.

Drawing from his own experiences in Scouting, Spielberg helped the Boy Scouts of America develop a merit badge in cinematography in order to help promote filmmaking as a marketable skill. The badge was launched at the 1989 National Scout Jamboree, which Spielberg attended, and where he personally counseled many boys in their work on requirements. That same year, 1989, saw the release of Indiana Jones and the Last Crusade. The opening scene shows a teenage Indiana Jones in scout uniform bearing the rank of a <hl> Life Scout <hl>. Spielberg stated he made Indiana Jones a Boy Scout in honor of his experience in Scouting. For his career accomplishments, service to others, and dedication to a new merit badge Spielberg was awarded the Distinguished Eagle Scout Award.

The opening scene shows a teenage Indiana Jones in scout uniform bearing the rank of a <hl> Life Scout <hl> .


Question: Which major Spielberg movie character was a Boy Scout?

Answer: Indiana Jones

Drawing from his own experiences in Scouting, Spielberg helped the Boy Scouts of America develop a merit badge in cinematography in order to help promote filmmaking as a marketable skill. The badge was launched at the 1989 National Scout Jamboree, which Spielberg attended, and where he personally counseled many boys in their work on requirements. <hl> That same year, 1989, saw the release of Indiana Jones and the Last Crusade. <hl> The opening scene shows a teenage Indiana Jones in scout uniform bearing the rank of a Life Scout. Spielberg stated he made Indiana Jones a Boy Scout in honor of his experience in Scouting. For his career accomplishments, service to others, and dedication to a new merit badge Spielberg was awarded the Distinguished Eagle Scout Award.

Drawing from his own experiences in Scouting, Spielberg helped the Boy Scouts of America develop a merit badge in cinematography in order to help promote filmmaking as a marketable skill. The badge was launched at the 1989 National Scout Jamboree, which Spielberg attended, and where he personally counseled many boys in their work on requirements. That same year, 1989, saw the release of <hl> Indiana Jones <hl> and the Last Crusade. The opening scene shows a teenage Indiana Jones in scout uniform bearing the rank of a Life Scout. Spielberg stated he made Indiana Jones a Boy Scout in honor of his experience in Scouting. For his career accomplishments, service to others, and dedication to a new merit badge Spielberg was awarded the Distinguished Eagle Scout Award.


Question: When was Spielberg's merit badge launched?

Answer: 1989

Drawing from his own experiences in Scouting, Spielberg helped the Boy Scouts of America develop a merit badge in cinematography in order to help promote filmmaking as a marketable skill. <hl> The badge was launched at the 1989 National Scout Jamboree, which Spielberg attended, and where he personally counseled many boys in their work on requirements. <hl> That same year, 1989, saw the release of Indiana Jones and the Last Crusade. The opening scene shows a teenage Indiana Jones in scout uniform bearing the rank of a Life Scout. Spielberg stated he made Indiana Jones a Boy Scout in honor of his experience in Scouting. For his career accomplishments, service to others, and dedication to a new merit badge Spielberg was awarded the Distinguished Eagle Scout Award.

Drawing from his own experiences in Scouting, Spielberg helped the Boy Scouts of America develop a merit badge in cinematography in order to help promote filmmaking as a marketable skill. The badge was launched at the <hl> 1989 <hl> National Scout Jamboree, which Spielberg attended, and where he personally counseled many boys in their work on requirements. That same year, 1989, saw the release of Indiana Jones and the Last Crusade. The opening scene shows a teenage Indiana Jones in scout uniform bearing the rank of a Life Scout. Spielberg stated he made Indiana Jones a Boy Scout in honor of his experience in Scouting. For his career accomplishments, service to others, and dedication to a new merit badge Spielberg was awarded the Distinguished Eagle Scout Award.


Question: What award did Spielberg receive on Jul 15, 2006?

In 2004 he was admitted as knight of the Légion d'honneur by president Jacques Chirac. On July 15, 2006, Spielberg was also awarded the Gold Hugo Lifetime Achievement Award at the Summer Gala of the Chicago International Film Festival, and also was awarded a Kennedy Center honour on December 3. The tribute to Spielberg featured a short, filmed biography narrated by Tom Hanks and included thank-yous from World War II veterans for Saving Private Ryan, as well as a performance of the finale to Leonard Bernstein's Candide, conducted by John Williams (Spielberg's frequent composer).[citation needed]

Answer: Gold Hugo Lifetime Achievement Award

In 2004 he was admitted as knight of the Légion d'honneur by president Jacques Chirac. <hl> On July 15, 2006, Spielberg was also awarded the Gold Hugo Lifetime Achievement Award at the Summer Gala of the Chicago International Film Festival, and also was awarded a Kennedy Center honour on December 3. <hl> The tribute to Spielberg featured a short, filmed biography narrated by Tom Hanks and included thank-yous from World War II veterans for Saving Private Ryan, as well as a performance of the finale to Leonard Bernstein's Candide, conducted by John Williams (Spielberg's frequent composer).[citation needed]

In 2004 he was admitted as knight of the Légion d'honneur by president Jacques Chirac. On July 15, 2006, Spielberg was also awarded the <hl> Gold Hugo Lifetime Achievement Award <hl> at the Summer Gala of the Chicago International Film Festival, and also was awarded a Kennedy Center honour on December 3. The tribute to Spielberg featured a short, filmed biography narrated by Tom Hanks and included thank-yous from World War II veterans for Saving Private Ryan, as well as a performance of the finale to Leonard Bernstein's Candide, conducted by John Williams (Spielberg's frequent composer).[citation needed]


Question: Who made Spielberg a knight?

Answer: Jacques Chirac

<hl> In 2004 he was admitted as knight of the Légion d'honneur by president Jacques Chirac . <hl> On July 15, 2006, Spielberg was also awarded the Gold Hugo Lifetime Achievement Award at the Summer Gala of the Chicago International Film Festival, and also was awarded a Kennedy Center honour on December 3. The tribute to Spielberg featured a short, filmed biography narrated by Tom Hanks and included thank-yous from World War II veterans for Saving Private Ryan, as well as a performance of the finale to Leonard Bernstein's Candide, conducted by John Williams (Spielberg's frequent composer).[citation needed]

In 2004 he was admitted as knight of the Légion d'honneur by president <hl> Jacques Chirac <hl>. On July 15, 2006, Spielberg was also awarded the Gold Hugo Lifetime Achievement Award at the Summer Gala of the Chicago International Film Festival, and also was awarded a Kennedy Center honour on December 3. The tribute to Spielberg featured a short, filmed biography narrated by Tom Hanks and included thank-yous from World War II veterans for Saving Private Ryan, as well as a performance of the finale to Leonard Bernstein's Candide, conducted by John Williams (Spielberg's frequent composer).[citation needed]

In 2004 he was admitted as knight of the Légion d'honneur by president <hl> Jacques Chirac <hl> .


Question: Where was Spielberg honored on Dec 3, 2006?

Answer: Kennedy Center

In 2004 he was admitted as knight of the Légion d'honneur by president Jacques Chirac. <hl> On July 15, 2006, Spielberg was also awarded the Gold Hugo Lifetime Achievement Award at the Summer Gala of the Chicago International Film Festival, and also was awarded a Kennedy Center honour on December 3. <hl> The tribute to Spielberg featured a short, filmed biography narrated by Tom Hanks and included thank-yous from World War II veterans for Saving Private Ryan, as well as a performance of the finale to Leonard Bernstein's Candide, conducted by John Williams (Spielberg's frequent composer).[citation needed]

In 2004 he was admitted as knight of the Légion d'honneur by president Jacques Chirac. On July 15, 2006, Spielberg was also awarded the Gold Hugo Lifetime Achievement Award at the Summer Gala of the Chicago International Film Festival, and also was awarded a <hl> Kennedy Center <hl> honour on December 3. The tribute to Spielberg featured a short, filmed biography narrated by Tom Hanks and included thank-yous from World War II veterans for Saving Private Ryan, as well as a performance of the finale to Leonard Bernstein's Candide, conducted by John Williams (Spielberg's frequent composer).[citation needed]


Question: Who narrated a short Spielberg bio at the Kennedy Center?

Answer: Tom Hanks

In 2004 he was admitted as knight of the Légion d'honneur by president Jacques Chirac. On July 15, 2006, Spielberg was also awarded the Gold Hugo Lifetime Achievement Award at the Summer Gala of the Chicago International Film Festival, and also was awarded a Kennedy Center honour on December 3. <hl> The tribute to Spielberg featured a short, filmed biography narrated by Tom Hanks and included thank-yous from World War II veterans for Saving Private Ryan, as well as a performance of the finale to Leonard Bernstein's Candide, conducted by John Williams (Spielberg's frequent composer).[citation needed] <hl>

In 2004 he was admitted as knight of the Légion d'honneur by president Jacques Chirac. On July 15, 2006, Spielberg was also awarded the Gold Hugo Lifetime Achievement Award at the Summer Gala of the Chicago International Film Festival, and also was awarded a Kennedy Center honour on December 3. The tribute to Spielberg featured a short, filmed biography narrated by <hl> Tom Hanks <hl> and included thank-yous from World War II veterans for Saving Private Ryan, as well as a performance of the finale to Leonard Bernstein's Candide, conducted by John Williams (Spielberg's frequent composer).[citation needed]


Question: When was Spielberg added to the Science Fiction Hall of Fame?

The Science Fiction Hall of Fame inducted Spielberg in 2005, the first year it considered non-literary contributors. In November 2007, he was chosen for a Lifetime Achievement Award to be presented at the sixth annual Visual Effects Society Awards in February 2009. He was set to be honored with the Cecil B. DeMille Award at the January 2008 Golden Globes; however, the new, watered-down format of the ceremony resulting from conflicts in the 2007–08 writers strike, the HFPA postponed his honor to the 2009 ceremony. In 2008, Spielberg was awarded the Légion d'honneur.

Answer: 2005

<hl> The Science Fiction Hall of Fame inducted Spielberg in 2005 , the first year it considered non-literary contributors. <hl> In November 2007, he was chosen for a Lifetime Achievement Award to be presented at the sixth annual Visual Effects Society Awards in February 2009. He was set to be honored with the Cecil B. DeMille Award at the January 2008 Golden Globes; however, the new, watered-down format of the ceremony resulting from conflicts in the 2007–08 writers strike, the HFPA postponed his honor to the 2009 ceremony. In 2008, Spielberg was awarded the Légion d'honneur.

The Science Fiction Hall of Fame inducted Spielberg in <hl> 2005 <hl>, the first year it considered non-literary contributors. In November 2007, he was chosen for a Lifetime Achievement Award to be presented at the sixth annual Visual Effects Society Awards in February 2009. He was set to be honored with the Cecil B. DeMille Award at the January 2008 Golden Globes; however, the new, watered-down format of the ceremony resulting from conflicts in the 2007–08 writers strike, the HFPA postponed his honor to the 2009 ceremony. In 2008, Spielberg was awarded the Légion d'honneur.

The Science Fiction Hall of Fame inducted Spielberg in <hl> 2005 <hl> , the first year it considered non-literary contributors.


Question: When did the Visual Effects Society give Spielberg a Lifetime Achievement Award?

Answer: February 2009

The Science Fiction Hall of Fame inducted Spielberg in 2005, the first year it considered non-literary contributors. <hl> In November 2007, he was chosen for a Lifetime Achievement Award to be presented at the sixth annual Visual Effects Society Awards in February 2009 . <hl> He was set to be honored with the Cecil B. DeMille Award at the January 2008 Golden Globes; however, the new, watered-down format of the ceremony resulting from conflicts in the 2007–08 writers strike, the HFPA postponed his honor to the 2009 ceremony. In 2008, Spielberg was awarded the Légion d'honneur.

The Science Fiction Hall of Fame inducted Spielberg in 2005, the first year it considered non-literary contributors. In November 2007, he was chosen for a Lifetime Achievement Award to be presented at the sixth annual Visual Effects Society Awards in <hl> February 2009 <hl>. He was set to be honored with the Cecil B. DeMille Award at the January 2008 Golden Globes; however, the new, watered-down format of the ceremony resulting from conflicts in the 2007–08 writers strike, the HFPA postponed his honor to the 2009 ceremony. In 2008, Spielberg was awarded the Légion d'honneur.

In November 2007, he was chosen for a Lifetime Achievement Award to be presented at the sixth annual Visual Effects Society Awards in <hl> February 2009 <hl> .


Question: When did Spielberg win the Cecil B. DeMille Award?

Answer: 2009

The Science Fiction Hall of Fame inducted Spielberg in 2005, the first year it considered non-literary contributors. <hl> In November 2007, he was chosen for a Lifetime Achievement Award to be presented at the sixth annual Visual Effects Society Awards in February 2009 . <hl> He was set to be honored with the Cecil B. DeMille Award at the January 2008 Golden Globes; however, the new, watered-down format of the ceremony resulting from conflicts in the 2007–08 writers strike, the HFPA postponed his honor to the 2009 ceremony. In 2008, Spielberg was awarded the Légion d'honneur.

The Science Fiction Hall of Fame inducted Spielberg in 2005, the first year it considered non-literary contributors. In November 2007, he was chosen for a Lifetime Achievement Award to be presented at the sixth annual Visual Effects Society Awards in February <hl> 2009 <hl>. He was set to be honored with the Cecil B. DeMille Award at the January 2008 Golden Globes; however, the new, watered-down format of the ceremony resulting from conflicts in the 2007–08 writers strike, the HFPA postponed his honor to the 2009 ceremony. In 2008, Spielberg was awarded the Légion d'honneur.

In November 2007, he was chosen for a Lifetime Achievement Award to be presented at the sixth annual Visual Effects Society Awards in February <hl> 2009 <hl> .


Question: Why was Spielberg's Cecil B. DeMille Award postponed from 2008?

Answer: watered-down format of the ceremony resulting from conflicts in the 2007–08 writers strike

The Science Fiction Hall of Fame inducted Spielberg in 2005, the first year it considered non-literary contributors. In November 2007, he was chosen for a Lifetime Achievement Award to be presented at the sixth annual Visual Effects Society Awards in February 2009. <hl> He was set to be honored with the Cecil B. DeMille Award at the January 2008 Golden Globes; however, the new, watered-down format of the ceremony resulting from conflicts in the 2007–08 writers strike , the HFPA postponed his honor to the 2009 ceremony. <hl> In 2008, Spielberg was awarded the Légion d'honneur.

The Science Fiction Hall of Fame inducted Spielberg in 2005, the first year it considered non-literary contributors. In November 2007, he was chosen for a Lifetime Achievement Award to be presented at the sixth annual Visual Effects Society Awards in February 2009. He was set to be honored with the Cecil B. DeMille Award at the January 2008 Golden Globes; however, the new, <hl> watered-down format of the ceremony resulting from conflicts in the 2007–08 writers strike <hl>, the HFPA postponed his honor to the 2009 ceremony. In 2008, Spielberg was awarded the Légion d'honneur.

He was set to be honored with the Cecil B. DeMille Award at the January 2008 Golden Globes; however, the new, <hl> watered-down format of the ceremony resulting from conflicts in the 2007–08 writers strike <hl> , the HFPA postponed his honor to the 2009 ceremony.


Question: For which industry were elevators first used?

Starting in the coal mines, by the mid-19th century elevators were operated with steam power and were used for moving goods in bulk in mines and factories. These steam driven devices were soon being applied to a diverse set of purposes - in 1823, two architects working in London, Burton and Hormer, built and operated a novel tourist attraction, which they called the "ascending room". It elevated paying customers to a considerable height in the center of London, allowing them a magnificent panoramic view of downtown.

Answer: coal mines

<hl> Starting in the coal mines , by the mid-19th century elevators were operated with steam power and were used for moving goods in bulk in mines and factories. <hl> These steam driven devices were soon being applied to a diverse set of purposes - in 1823, two architects working in London, Burton and Hormer, built and operated a novel tourist attraction, which they called the "ascending room". It elevated paying customers to a considerable height in the center of London, allowing them a magnificent panoramic view of downtown.

Starting in the <hl> coal mines <hl>, by the mid-19th century elevators were operated with steam power and were used for moving goods in bulk in mines and factories. These steam driven devices were soon being applied to a diverse set of purposes - in 1823, two architects working in London, Burton and Hormer, built and operated a novel tourist attraction, which they called the "ascending room". It elevated paying customers to a considerable height in the center of London, allowing them a magnificent panoramic view of downtown.

Starting in the <hl> coal mines <hl> , by the mid-19th century elevators were operated with steam power and were used for moving goods in bulk in mines and factories.


Question: In the mid 1800s what were elevators fueled by?

Answer: steam power

<hl> Starting in the coal mines, by the mid-19th century elevators were operated with steam power and were used for moving goods in bulk in mines and factories. <hl> These steam driven devices were soon being applied to a diverse set of purposes - in 1823, two architects working in London, Burton and Hormer, built and operated a novel tourist attraction, which they called the "ascending room". It elevated paying customers to a considerable height in the center of London, allowing them a magnificent panoramic view of downtown.

Starting in the coal mines, by the mid-19th century elevators were operated with <hl> steam power <hl> and were used for moving goods in bulk in mines and factories. These steam driven devices were soon being applied to a diverse set of purposes - in 1823, two architects working in London, Burton and Hormer, built and operated a novel tourist attraction, which they called the "ascending room". It elevated paying customers to a considerable height in the center of London, allowing them a magnificent panoramic view of downtown.


Question: What were elevators originally built for?

Answer: moving goods in bulk in mines and factories

<hl> Starting in the coal mines, by the mid-19th century elevators were operated with steam power and were used for moving goods in bulk in mines and factories . <hl> These steam driven devices were soon being applied to a diverse set of purposes - in 1823, two architects working in London, Burton and Hormer, built and operated a novel tourist attraction, which they called the "ascending room". It elevated paying customers to a considerable height in the center of London, allowing them a magnificent panoramic view of downtown.

Starting in the coal mines, by the mid-19th century elevators were operated with steam power and were used for <hl> moving goods in bulk in mines and factories <hl>. These steam driven devices were soon being applied to a diverse set of purposes - in 1823, two architects working in London, Burton and Hormer, built and operated a novel tourist attraction, which they called the "ascending room". It elevated paying customers to a considerable height in the center of London, allowing them a magnificent panoramic view of downtown.

Starting in the coal mines, by the mid-19th century elevators were operated with steam power and were used for <hl> moving goods in bulk in mines and factories <hl> .


Question: Who built the "ascending room", in 1823?

Answer: Burton and Hormer

Starting in the coal mines, by the mid-19th century elevators were operated with steam power and were used for moving goods in bulk in mines and factories. <hl> These steam driven devices were soon being applied to a diverse set of purposes - in 1823, two architects working in London, Burton and Hormer , built and operated a novel tourist attraction, which they called the "ascending room". <hl> It elevated paying customers to a considerable height in the center of London, allowing them a magnificent panoramic view of downtown.

Starting in the coal mines, by the mid-19th century elevators were operated with steam power and were used for moving goods in bulk in mines and factories. These steam driven devices were soon being applied to a diverse set of purposes - in 1823, two architects working in London, <hl> Burton and Hormer <hl>, built and operated a novel tourist attraction, which they called the "ascending room". It elevated paying customers to a considerable height in the center of London, allowing them a magnificent panoramic view of downtown.

These steam driven devices were soon being applied to a diverse set of purposes - in 1823, two architects working in London, <hl> Burton and Hormer <hl> , built and operated a novel tourist attraction, which they called the "ascending room".


Question: The "ascending room" gave customers a view of what city's downtown?

Answer: London

Starting in the coal mines, by the mid-19th century elevators were operated with steam power and were used for moving goods in bulk in mines and factories. <hl> These steam driven devices were soon being applied to a diverse set of purposes - in 1823, two architects working in London , Burton and Hormer, built and operated a novel tourist attraction, which they called the "ascending room". <hl> It elevated paying customers to a considerable height in the center of London, allowing them a magnificent panoramic view of downtown.

Starting in the coal mines, by the mid-19th century elevators were operated with steam power and were used for moving goods in bulk in mines and factories. These steam driven devices were soon being applied to a diverse set of purposes - in 1823, two architects working in <hl> London <hl>, Burton and Hormer, built and operated a novel tourist attraction, which they called the "ascending room". It elevated paying customers to a considerable height in the center of London, allowing them a magnificent panoramic view of downtown.

These steam driven devices were soon being applied to a diverse set of purposes - in 1823, two architects working in <hl> London <hl> , Burton and Hormer, built and operated a novel tourist attraction, which they called the "ascending room".


Question: Who invented the hydraulic crane in 1846?

The hydraulic crane was invented by Sir William Armstrong in 1846, primarily for use at the Tyneside docks for loading cargo. These quickly supplanted the earlier steam driven elevators: exploiting Pascal's law, they provided a much greater force. A water pump supplied a variable level of water pressure to a plunger encased inside a vertical cylinder, allowing the level of the platform (carrying a heavy load) to be raised and lowered. Counterweights and balances were also used to increase the lifting power of the apparatus.

Answer: Sir William Armstrong

<hl> The hydraulic crane was invented by Sir William Armstrong in 1846, primarily for use at the Tyneside docks for loading cargo. <hl> These quickly supplanted the earlier steam driven elevators: exploiting Pascal's law, they provided a much greater force. A water pump supplied a variable level of water pressure to a plunger encased inside a vertical cylinder, allowing the level of the platform (carrying a heavy load) to be raised and lowered. Counterweights and balances were also used to increase the lifting power of the apparatus.

The hydraulic crane was invented by <hl> Sir William Armstrong <hl> in 1846, primarily for use at the Tyneside docks for loading cargo. These quickly supplanted the earlier steam driven elevators: exploiting Pascal's law, they provided a much greater force. A water pump supplied a variable level of water pressure to a plunger encased inside a vertical cylinder, allowing the level of the platform (carrying a heavy load) to be raised and lowered. Counterweights and balances were also used to increase the lifting power of the apparatus.


Question: Were was the hydraulic crane initially used?

Answer: Tyneside docks

<hl> The hydraulic crane was invented by Sir William Armstrong in 1846, primarily for use at the Tyneside docks for loading cargo. <hl> These quickly supplanted the earlier steam driven elevators: exploiting Pascal's law, they provided a much greater force. A water pump supplied a variable level of water pressure to a plunger encased inside a vertical cylinder, allowing the level of the platform (carrying a heavy load) to be raised and lowered. Counterweights and balances were also used to increase the lifting power of the apparatus.

The hydraulic crane was invented by Sir William Armstrong in 1846, primarily for use at the <hl> Tyneside docks <hl> for loading cargo. These quickly supplanted the earlier steam driven elevators: exploiting Pascal's law, they provided a much greater force. A water pump supplied a variable level of water pressure to a plunger encased inside a vertical cylinder, allowing the level of the platform (carrying a heavy load) to be raised and lowered. Counterweights and balances were also used to increase the lifting power of the apparatus.


Question: In what manner did hydraulic cranes employ Pascal's law?

Answer: they provided a much greater force

The hydraulic crane was invented by Sir William Armstrong in 1846, primarily for use at the Tyneside docks for loading cargo. <hl> These quickly supplanted the earlier steam driven elevators: exploiting Pascal's law, they provided a much greater force . <hl> A water pump supplied a variable level of water pressure to a plunger encased inside a vertical cylinder, allowing the level of the platform (carrying a heavy load) to be raised and lowered. Counterweights and balances were also used to increase the lifting power of the apparatus.

The hydraulic crane was invented by Sir William Armstrong in 1846, primarily for use at the Tyneside docks for loading cargo. These quickly supplanted the earlier steam driven elevators: exploiting Pascal's law, <hl> they provided a much greater force <hl>. A water pump supplied a variable level of water pressure to a plunger encased inside a vertical cylinder, allowing the level of the platform (carrying a heavy load) to be raised and lowered. Counterweights and balances were also used to increase the lifting power of the apparatus.

These quickly supplanted the earlier steam driven elevators: exploiting Pascal's law, <hl> they provided a much greater force <hl> .


Question: The water pump supplied water pressure to a plunger located where?

Answer: encased inside a vertical cylinder

The hydraulic crane was invented by Sir William Armstrong in 1846, primarily for use at the Tyneside docks for loading cargo. These quickly supplanted the earlier steam driven elevators: exploiting Pascal's law, they provided a much greater force. <hl> A water pump supplied a variable level of water pressure to a plunger encased inside a vertical cylinder , allowing the level of the platform (carrying a heavy load) to be raised and lowered. <hl> Counterweights and balances were also used to increase the lifting power of the apparatus.

The hydraulic crane was invented by Sir William Armstrong in 1846, primarily for use at the Tyneside docks for loading cargo. These quickly supplanted the earlier steam driven elevators: exploiting Pascal's law, they provided a much greater force. A water pump supplied a variable level of water pressure to a plunger <hl> encased inside a vertical cylinder <hl>, allowing the level of the platform (carrying a heavy load) to be raised and lowered. Counterweights and balances were also used to increase the lifting power of the apparatus.

A water pump supplied a variable level of water pressure to a plunger <hl> encased inside a vertical cylinder <hl> , allowing the level of the platform (carrying a heavy load) to be raised and lowered.


Question: besides water pressure, what else was used to increase the lifting power?

Answer: Counterweights and balances

The hydraulic crane was invented by Sir William Armstrong in 1846, primarily for use at the Tyneside docks for loading cargo. These quickly supplanted the earlier steam driven elevators: exploiting Pascal's law, they provided a much greater force. A water pump supplied a variable level of water pressure to a plunger encased inside a vertical cylinder, allowing the level of the platform (carrying a heavy load) to be raised and lowered. <hl> Counterweights and balances were also used to increase the lifting power of the apparatus. <hl>

The hydraulic crane was invented by Sir William Armstrong in 1846, primarily for use at the Tyneside docks for loading cargo. These quickly supplanted the earlier steam driven elevators: exploiting Pascal's law, they provided a much greater force. A water pump supplied a variable level of water pressure to a plunger encased inside a vertical cylinder, allowing the level of the platform (carrying a heavy load) to be raised and lowered. <hl> Counterweights and balances <hl> were also used to increase the lifting power of the apparatus.


Question: What Neapolitan architect created the "Flying Chair" elevator?

In 1845, the Neapolitan architect Gaetano Genovese installed in the Royal Palace of Caserta the "Flying Chair", an elevator ahead of its time, covered with chestnut wood outside and with maple wood inside. It included a light, two benches and a hand operated signal, and could be activated from the outside, without any effort on the part of the occupants. Traction was controlled by a motor mechanic utilizing a system of toothed wheels. A safety system was designed to take effect if the cords broke. It consisted of a beam pushed outwards by a steel spring.

Answer: Gaetano Genovese

<hl> In 1845, the Neapolitan architect Gaetano Genovese installed in the Royal Palace of Caserta the "Flying Chair", an elevator ahead of its time, covered with chestnut wood outside and with maple wood inside. <hl> It included a light, two benches and a hand operated signal, and could be activated from the outside, without any effort on the part of the occupants. Traction was controlled by a motor mechanic utilizing a system of toothed wheels. A safety system was designed to take effect if the cords broke. It consisted of a beam pushed outwards by a steel spring.

In 1845, the Neapolitan architect <hl> Gaetano Genovese <hl> installed in the Royal Palace of Caserta the "Flying Chair", an elevator ahead of its time, covered with chestnut wood outside and with maple wood inside. It included a light, two benches and a hand operated signal, and could be activated from the outside, without any effort on the part of the occupants. Traction was controlled by a motor mechanic utilizing a system of toothed wheels. A safety system was designed to take effect if the cords broke. It consisted of a beam pushed outwards by a steel spring.


Question: At what location was the "Flying Chair" installed in 1845?

Answer: Royal Palace of Caserta

<hl> In 1845, the Neapolitan architect Gaetano Genovese installed in the Royal Palace of Caserta the "Flying Chair", an elevator ahead of its time, covered with chestnut wood outside and with maple wood inside. <hl> It included a light, two benches and a hand operated signal, and could be activated from the outside, without any effort on the part of the occupants. Traction was controlled by a motor mechanic utilizing a system of toothed wheels. A safety system was designed to take effect if the cords broke. It consisted of a beam pushed outwards by a steel spring.

In 1845, the Neapolitan architect Gaetano Genovese installed in the <hl> Royal Palace of Caserta <hl> the "Flying Chair", an elevator ahead of its time, covered with chestnut wood outside and with maple wood inside. It included a light, two benches and a hand operated signal, and could be activated from the outside, without any effort on the part of the occupants. Traction was controlled by a motor mechanic utilizing a system of toothed wheels. A safety system was designed to take effect if the cords broke. It consisted of a beam pushed outwards by a steel spring.


Question: What type of wood was used on the inside ?

Answer: maple

<hl> In 1845, the Neapolitan architect Gaetano Genovese installed in the Royal Palace of Caserta the "Flying Chair", an elevator ahead of its time, covered with chestnut wood outside and with maple wood inside. <hl> It included a light, two benches and a hand operated signal, and could be activated from the outside, without any effort on the part of the occupants. Traction was controlled by a motor mechanic utilizing a system of toothed wheels. A safety system was designed to take effect if the cords broke. It consisted of a beam pushed outwards by a steel spring.

In 1845, the Neapolitan architect Gaetano Genovese installed in the Royal Palace of Caserta the "Flying Chair", an elevator ahead of its time, covered with chestnut wood outside and with <hl> maple <hl> wood inside. It included a light, two benches and a hand operated signal, and could be activated from the outside, without any effort on the part of the occupants. Traction was controlled by a motor mechanic utilizing a system of toothed wheels. A safety system was designed to take effect if the cords broke. It consisted of a beam pushed outwards by a steel spring.


Question: What controlled the traction?

Answer: a motor mechanic utilizing a system of toothed wheels

In 1845, the Neapolitan architect Gaetano Genovese installed in the Royal Palace of Caserta the "Flying Chair", an elevator ahead of its time, covered with chestnut wood outside and with maple wood inside. It included a light, two benches and a hand operated signal, and could be activated from the outside, without any effort on the part of the occupants. <hl> Traction was controlled by a motor mechanic utilizing a system of toothed wheels . <hl> A safety system was designed to take effect if the cords broke. It consisted of a beam pushed outwards by a steel spring.

In 1845, the Neapolitan architect Gaetano Genovese installed in the Royal Palace of Caserta the "Flying Chair", an elevator ahead of its time, covered with chestnut wood outside and with maple wood inside. It included a light, two benches and a hand operated signal, and could be activated from the outside, without any effort on the part of the occupants. Traction was controlled by <hl> a motor mechanic utilizing a system of toothed wheels <hl>. A safety system was designed to take effect if the cords broke. It consisted of a beam pushed outwards by a steel spring.

Traction was controlled by <hl> a motor mechanic utilizing a system of toothed wheels <hl> .


Question: What did the safety system consist of?

Answer: a beam pushed outwards by a steel spring

In 1845, the Neapolitan architect Gaetano Genovese installed in the Royal Palace of Caserta the "Flying Chair", an elevator ahead of its time, covered with chestnut wood outside and with maple wood inside. It included a light, two benches and a hand operated signal, and could be activated from the outside, without any effort on the part of the occupants. Traction was controlled by a motor mechanic utilizing a system of toothed wheels. A safety system was designed to take effect if the cords broke. <hl> It consisted of a beam pushed outwards by a steel spring . <hl>

In 1845, the Neapolitan architect Gaetano Genovese installed in the Royal Palace of Caserta the "Flying Chair", an elevator ahead of its time, covered with chestnut wood outside and with maple wood inside. It included a light, two benches and a hand operated signal, and could be activated from the outside, without any effort on the part of the occupants. Traction was controlled by a motor mechanic utilizing a system of toothed wheels. A safety system was designed to take effect if the cords broke. It consisted of <hl> a beam pushed outwards by a steel spring <hl>.

It consisted of <hl> a beam pushed outwards by a steel spring <hl> .


Question: Who created the safety elevator in 1852?

In 1852, Elisha Otis introduced the safety elevator, which prevented the fall of the cab if the cable broke. The design of the Otis safety elevator is somewhat similar to one type still used today. A governor device engages knurled roller(s), locking the elevator to its guides should the elevator descend at excessive speed. He demonstrated it at the New York exposition in the Crystal Palace in a dramatic, death-defying presentation in 1854, and the first such passenger elevator was installed at 488 Broadway in New York City on March 23, 1857.

Answer: Elisha Otis

<hl> In 1852, Elisha Otis introduced the safety elevator, which prevented the fall of the cab if the cable broke. <hl> The design of the Otis safety elevator is somewhat similar to one type still used today. A governor device engages knurled roller(s), locking the elevator to its guides should the elevator descend at excessive speed. He demonstrated it at the New York exposition in the Crystal Palace in a dramatic, death-defying presentation in 1854, and the first such passenger elevator was installed at 488 Broadway in New York City on March 23, 1857.

In 1852, <hl> Elisha Otis <hl> introduced the safety elevator, which prevented the fall of the cab if the cable broke. The design of the Otis safety elevator is somewhat similar to one type still used today. A governor device engages knurled roller(s), locking the elevator to its guides should the elevator descend at excessive speed. He demonstrated it at the New York exposition in the Crystal Palace in a dramatic, death-defying presentation in 1854, and the first such passenger elevator was installed at 488 Broadway in New York City on March 23, 1857.


Question: What feature did the safety elevator display?

Answer: prevented the fall of the cab if the cable broke

<hl> In 1852, Elisha Otis introduced the safety elevator, which prevented the fall of the cab if the cable broke . <hl> The design of the Otis safety elevator is somewhat similar to one type still used today. A governor device engages knurled roller(s), locking the elevator to its guides should the elevator descend at excessive speed. He demonstrated it at the New York exposition in the Crystal Palace in a dramatic, death-defying presentation in 1854, and the first such passenger elevator was installed at 488 Broadway in New York City on March 23, 1857.

In 1852, Elisha Otis introduced the safety elevator, which <hl> prevented the fall of the cab if the cable broke <hl>. The design of the Otis safety elevator is somewhat similar to one type still used today. A governor device engages knurled roller(s), locking the elevator to its guides should the elevator descend at excessive speed. He demonstrated it at the New York exposition in the Crystal Palace in a dramatic, death-defying presentation in 1854, and the first such passenger elevator was installed at 488 Broadway in New York City on March 23, 1857.

In 1852, Elisha Otis introduced the safety elevator, which <hl> prevented the fall of the cab if the cable broke <hl> .


Question: What did the govenor device engage to lock the elevator?

Answer: knurled roller(s)

In 1852, Elisha Otis introduced the safety elevator, which prevented the fall of the cab if the cable broke. The design of the Otis safety elevator is somewhat similar to one type still used today. <hl> A governor device engages knurled roller(s) , locking the elevator to its guides should the elevator descend at excessive speed. <hl> He demonstrated it at the New York exposition in the Crystal Palace in a dramatic, death-defying presentation in 1854, and the first such passenger elevator was installed at 488 Broadway in New York City on March 23, 1857.

In 1852, Elisha Otis introduced the safety elevator, which prevented the fall of the cab if the cable broke. The design of the Otis safety elevator is somewhat similar to one type still used today. A governor device engages <hl> knurled roller(s) <hl>, locking the elevator to its guides should the elevator descend at excessive speed. He demonstrated it at the New York exposition in the Crystal Palace in a dramatic, death-defying presentation in 1854, and the first such passenger elevator was installed at 488 Broadway in New York City on March 23, 1857.

A governor device engages <hl> knurled roller(s) <hl> , locking the elevator to its guides should the elevator descend at excessive speed.


Question: At what location was it first presented?

Answer: New York exposition in the Crystal Palace

In 1852, Elisha Otis introduced the safety elevator, which prevented the fall of the cab if the cable broke. The design of the Otis safety elevator is somewhat similar to one type still used today. A governor device engages knurled roller(s), locking the elevator to its guides should the elevator descend at excessive speed. <hl> He demonstrated it at the New York exposition in the Crystal Palace in a dramatic, death-defying presentation in 1854, and the first such passenger elevator was installed at 488 Broadway in New York City on March 23, 1857. <hl>

In 1852, Elisha Otis introduced the safety elevator, which prevented the fall of the cab if the cable broke. The design of the Otis safety elevator is somewhat similar to one type still used today. A governor device engages knurled roller(s), locking the elevator to its guides should the elevator descend at excessive speed. He demonstrated it at the <hl> New York exposition in the Crystal Palace <hl> in a dramatic, death-defying presentation in 1854, and the first such passenger elevator was installed at 488 Broadway in New York City on March 23, 1857.


Question: Where was the first safety elevator installed?

Answer: 488 Broadway in New York City

In 1852, Elisha Otis introduced the safety elevator, which prevented the fall of the cab if the cable broke. The design of the Otis safety elevator is somewhat similar to one type still used today. A governor device engages knurled roller(s), locking the elevator to its guides should the elevator descend at excessive speed. <hl> He demonstrated it at the New York exposition in the Crystal Palace in a dramatic, death-defying presentation in 1854, and the first such passenger elevator was installed at 488 Broadway in New York City on March 23, 1857. <hl>

In 1852, Elisha Otis introduced the safety elevator, which prevented the fall of the cab if the cable broke. The design of the Otis safety elevator is somewhat similar to one type still used today. A governor device engages knurled roller(s), locking the elevator to its guides should the elevator descend at excessive speed. He demonstrated it at the New York exposition in the Crystal Palace in a dramatic, death-defying presentation in 1854, and the first such passenger elevator was installed at <hl> 488 Broadway in New York City <hl> on March 23, 1857.


Question: Which was built first, the first elevator shaft or the first elevator?

The first elevator shaft preceded the first elevator by four years. Construction for Peter Cooper's Cooper Union Foundation building in New York began in 1853. An elevator shaft was included in the design, because Cooper was confident that a safe passenger elevator would soon be invented. The shaft was cylindrical because Cooper thought it was the most efficient design. Later, Otis designed a special elevator for the building. Today the Otis Elevator Company, now a subsidiary of United Technologies Corporation, is the world's largest manufacturer of vertical transport systems.

Answer: first elevator shaft

<hl> The first elevator shaft preceded the first elevator by four years. <hl> Construction for Peter Cooper's Cooper Union Foundation building in New York began in 1853. An elevator shaft was included in the design, because Cooper was confident that a safe passenger elevator would soon be invented. The shaft was cylindrical because Cooper thought it was the most efficient design. Later, Otis designed a special elevator for the building. Today the Otis Elevator Company, now a subsidiary of United Technologies Corporation, is the world's largest manufacturer of vertical transport systems.

The <hl> first elevator shaft <hl> preceded the first elevator by four years. Construction for Peter Cooper's Cooper Union Foundation building in New York began in 1853. An elevator shaft was included in the design, because Cooper was confident that a safe passenger elevator would soon be invented. The shaft was cylindrical because Cooper thought it was the most efficient design. Later, Otis designed a special elevator for the building. Today the Otis Elevator Company, now a subsidiary of United Technologies Corporation, is the world's largest manufacturer of vertical transport systems.


Question: What year did constructrion begin for the Cooper Union Foundation?

Answer: 1853

The first elevator shaft preceded the first elevator by four years. <hl> Construction for Peter Cooper's Cooper Union Foundation building in New York began in 1853 . <hl> An elevator shaft was included in the design, because Cooper was confident that a safe passenger elevator would soon be invented. The shaft was cylindrical because Cooper thought it was the most efficient design. Later, Otis designed a special elevator for the building. Today the Otis Elevator Company, now a subsidiary of United Technologies Corporation, is the world's largest manufacturer of vertical transport systems.

The first elevator shaft preceded the first elevator by four years. Construction for Peter Cooper's Cooper Union Foundation building in New York began in <hl> 1853 <hl>. An elevator shaft was included in the design, because Cooper was confident that a safe passenger elevator would soon be invented. The shaft was cylindrical because Cooper thought it was the most efficient design. Later, Otis designed a special elevator for the building. Today the Otis Elevator Company, now a subsidiary of United Technologies Corporation, is the world's largest manufacturer of vertical transport systems.

Construction for Peter Cooper's Cooper Union Foundation building in New York began in <hl> 1853 <hl> .


Question: What design did Peter Cooper feel was the most efficient?

Answer: cylindrical

The first elevator shaft preceded the first elevator by four years. Construction for Peter Cooper's Cooper Union Foundation building in New York began in 1853. An elevator shaft was included in the design, because Cooper was confident that a safe passenger elevator would soon be invented. <hl> The shaft was cylindrical because Cooper thought it was the most efficient design. <hl> Later, Otis designed a special elevator for the building. Today the Otis Elevator Company, now a subsidiary of United Technologies Corporation, is the world's largest manufacturer of vertical transport systems.

The first elevator shaft preceded the first elevator by four years. Construction for Peter Cooper's Cooper Union Foundation building in New York began in 1853. An elevator shaft was included in the design, because Cooper was confident that a safe passenger elevator would soon be invented. The shaft was <hl> cylindrical <hl> because Cooper thought it was the most efficient design. Later, Otis designed a special elevator for the building. Today the Otis Elevator Company, now a subsidiary of United Technologies Corporation, is the world's largest manufacturer of vertical transport systems.


Question: The Otis Elevator Company is today a subsidiary of what major corporation?

Answer: United Technologies Corporation

The first elevator shaft preceded the first elevator by four years. Construction for Peter Cooper's Cooper Union Foundation building in New York began in 1853. An elevator shaft was included in the design, because Cooper was confident that a safe passenger elevator would soon be invented. The shaft was cylindrical because Cooper thought it was the most efficient design. Later, Otis designed a special elevator for the building. <hl> Today the Otis Elevator Company, now a subsidiary of United Technologies Corporation , is the world's largest manufacturer of vertical transport systems. <hl>

The first elevator shaft preceded the first elevator by four years. Construction for Peter Cooper's Cooper Union Foundation building in New York began in 1853. An elevator shaft was included in the design, because Cooper was confident that a safe passenger elevator would soon be invented. The shaft was cylindrical because Cooper thought it was the most efficient design. Later, Otis designed a special elevator for the building. Today the Otis Elevator Company, now a subsidiary of <hl> United Technologies Corporation <hl>, is the world's largest manufacturer of vertical transport systems.

Today the Otis Elevator Company, now a subsidiary of <hl> United Technologies Corporation <hl> , is the world's largest manufacturer of vertical transport systems.


Question: What title does United Technologies Corporation hold?

Answer: world's largest manufacturer of vertical transport systems

The first elevator shaft preceded the first elevator by four years. Construction for Peter Cooper's Cooper Union Foundation building in New York began in 1853. An elevator shaft was included in the design, because Cooper was confident that a safe passenger elevator would soon be invented. The shaft was cylindrical because Cooper thought it was the most efficient design. Later, Otis designed a special elevator for the building. <hl> Today the Otis Elevator Company, now a subsidiary of United Technologies Corporation, is the world's largest manufacturer of vertical transport systems . <hl>

The first elevator shaft preceded the first elevator by four years. Construction for Peter Cooper's Cooper Union Foundation building in New York began in 1853. An elevator shaft was included in the design, because Cooper was confident that a safe passenger elevator would soon be invented. The shaft was cylindrical because Cooper thought it was the most efficient design. Later, Otis designed a special elevator for the building. Today the Otis Elevator Company, now a subsidiary of United Technologies Corporation, is the <hl> world's largest manufacturer of vertical transport systems <hl>.

Today the Otis Elevator Company, now a subsidiary of United Technologies Corporation, is the <hl> world's largest manufacturer of vertical transport systems <hl> .


Question: Who built the first electric elevator?

The first electric elevator was built by Werner von Siemens in 1880 in Germany. The inventor Anton Freissler developed the ideas of von Siemens and built up a successful enterprise in Austria-Hungary. The safety and speed of electric elevators were significantly enhanced by Frank Sprague who added floor control, automatic elevators, acceleration control of cars, and safeties. His elevator ran faster and with larger loads than hydraulic or steam elevators, and 584 electric elevators were installed before Sprague sold his company to the Otis Elevator Company in 1895. Sprague also developed the idea and technology for multiple elevators in a single shaft.

Answer: Werner von Siemens

<hl> The first electric elevator was built by Werner von Siemens in 1880 in Germany. <hl> The inventor Anton Freissler developed the ideas of von Siemens and built up a successful enterprise in Austria-Hungary. The safety and speed of electric elevators were significantly enhanced by Frank Sprague who added floor control, automatic elevators, acceleration control of cars, and safeties. His elevator ran faster and with larger loads than hydraulic or steam elevators, and 584 electric elevators were installed before Sprague sold his company to the Otis Elevator Company in 1895. Sprague also developed the idea and technology for multiple elevators in a single shaft.

The first electric elevator was built by <hl> Werner von Siemens <hl> in 1880 in Germany. The inventor Anton Freissler developed the ideas of von Siemens and built up a successful enterprise in Austria-Hungary. The safety and speed of electric elevators were significantly enhanced by Frank Sprague who added floor control, automatic elevators, acceleration control of cars, and safeties. His elevator ran faster and with larger loads than hydraulic or steam elevators, and 584 electric elevators were installed before Sprague sold his company to the Otis Elevator Company in 1895. Sprague also developed the idea and technology for multiple elevators in a single shaft.


Question: The first electric elevator, built in 1880, was in what Country?

Answer: Germany

<hl> The first electric elevator was built by Werner von Siemens in 1880 in Germany . <hl> The inventor Anton Freissler developed the ideas of von Siemens and built up a successful enterprise in Austria-Hungary. The safety and speed of electric elevators were significantly enhanced by Frank Sprague who added floor control, automatic elevators, acceleration control of cars, and safeties. His elevator ran faster and with larger loads than hydraulic or steam elevators, and 584 electric elevators were installed before Sprague sold his company to the Otis Elevator Company in 1895. Sprague also developed the idea and technology for multiple elevators in a single shaft.

The first electric elevator was built by Werner von Siemens in 1880 in <hl> Germany <hl>. The inventor Anton Freissler developed the ideas of von Siemens and built up a successful enterprise in Austria-Hungary. The safety and speed of electric elevators were significantly enhanced by Frank Sprague who added floor control, automatic elevators, acceleration control of cars, and safeties. His elevator ran faster and with larger loads than hydraulic or steam elevators, and 584 electric elevators were installed before Sprague sold his company to the Otis Elevator Company in 1895. Sprague also developed the idea and technology for multiple elevators in a single shaft.

The first electric elevator was built by Werner von Siemens in 1880 in <hl> Germany <hl> .


Question: Who is credited with increasing the safety and speed of electric elevators?

Answer: Frank Sprague

The first electric elevator was built by Werner von Siemens in 1880 in Germany. The inventor Anton Freissler developed the ideas of von Siemens and built up a successful enterprise in Austria-Hungary. <hl> The safety and speed of electric elevators were significantly enhanced by Frank Sprague who added floor control, automatic elevators, acceleration control of cars, and safeties. <hl> His elevator ran faster and with larger loads than hydraulic or steam elevators, and 584 electric elevators were installed before Sprague sold his company to the Otis Elevator Company in 1895. Sprague also developed the idea and technology for multiple elevators in a single shaft.

The first electric elevator was built by Werner von Siemens in 1880 in Germany. The inventor Anton Freissler developed the ideas of von Siemens and built up a successful enterprise in Austria-Hungary. The safety and speed of electric elevators were significantly enhanced by <hl> Frank Sprague <hl> who added floor control, automatic elevators, acceleration control of cars, and safeties. His elevator ran faster and with larger loads than hydraulic or steam elevators, and 584 electric elevators were installed before Sprague sold his company to the Otis Elevator Company in 1895. Sprague also developed the idea and technology for multiple elevators in a single shaft.


Question: Who ultilized von Siemens ideas to build a succesful business?

Answer: Anton Freissler

The first electric elevator was built by Werner von Siemens in 1880 in Germany. <hl> The inventor Anton Freissler developed the ideas of von Siemens and built up a successful enterprise in Austria-Hungary. <hl> The safety and speed of electric elevators were significantly enhanced by Frank Sprague who added floor control, automatic elevators, acceleration control of cars, and safeties. His elevator ran faster and with larger loads than hydraulic or steam elevators, and 584 electric elevators were installed before Sprague sold his company to the Otis Elevator Company in 1895. Sprague also developed the idea and technology for multiple elevators in a single shaft.

The first electric elevator was built by Werner von Siemens in 1880 in Germany. The inventor <hl> Anton Freissler <hl> developed the ideas of von Siemens and built up a successful enterprise in Austria-Hungary. The safety and speed of electric elevators were significantly enhanced by Frank Sprague who added floor control, automatic elevators, acceleration control of cars, and safeties. His elevator ran faster and with larger loads than hydraulic or steam elevators, and 584 electric elevators were installed before Sprague sold his company to the Otis Elevator Company in 1895. Sprague also developed the idea and technology for multiple elevators in a single shaft.


Question: To whom did Frank Sprague sell his company to in 1895?

Answer: Otis Elevator Company

The first electric elevator was built by Werner von Siemens in 1880 in Germany. The inventor Anton Freissler developed the ideas of von Siemens and built up a successful enterprise in Austria-Hungary. The safety and speed of electric elevators were significantly enhanced by Frank Sprague who added floor control, automatic elevators, acceleration control of cars, and safeties. <hl> His elevator ran faster and with larger loads than hydraulic or steam elevators, and 584 electric elevators were installed before Sprague sold his company to the Otis Elevator Company in 1895. <hl> Sprague also developed the idea and technology for multiple elevators in a single shaft.

The first electric elevator was built by Werner von Siemens in 1880 in Germany. The inventor Anton Freissler developed the ideas of von Siemens and built up a successful enterprise in Austria-Hungary. The safety and speed of electric elevators were significantly enhanced by Frank Sprague who added floor control, automatic elevators, acceleration control of cars, and safeties. His elevator ran faster and with larger loads than hydraulic or steam elevators, and 584 electric elevators were installed before Sprague sold his company to the <hl> Otis Elevator Company <hl> in 1895. Sprague also developed the idea and technology for multiple elevators in a single shaft.


Question: What is another name for an elevator shaft?

Some people argue that elevators began as simple rope or chain hoists (see Traction elevators below). An elevator is essentially a platform that is either pulled or pushed up by a mechanical means. A modern-day elevator consists of a cab (also called a "cage", "carriage" or "car") mounted on a platform within an enclosed space called a shaft or sometimes a "hoistway". In the past, elevator drive mechanisms were powered by steam and water hydraulic pistons or by hand. In a "traction" elevator, cars are pulled up by means of rolling steel ropes over a deeply grooved pulley, commonly called a sheave in the industry. The weight of the car is balanced by a counterweight. Sometimes two elevators are built so that their cars always move synchronously in opposite directions, and are each other's counterweight.

Answer: hoistway

Some people argue that elevators began as simple rope or chain hoists (see Traction elevators below). An elevator is essentially a platform that is either pulled or pushed up by a mechanical means. <hl> A modern-day elevator consists of a cab (also called a "cage", "carriage" or "car") mounted on a platform within an enclosed space called a shaft or sometimes a " hoistway ". <hl> In the past, elevator drive mechanisms were powered by steam and water hydraulic pistons or by hand. In a "traction" elevator, cars are pulled up by means of rolling steel ropes over a deeply grooved pulley, commonly called a sheave in the industry. The weight of the car is balanced by a counterweight. Sometimes two elevators are built so that their cars always move synchronously in opposite directions, and are each other's counterweight.

Some people argue that elevators began as simple rope or chain hoists (see Traction elevators below). An elevator is essentially a platform that is either pulled or pushed up by a mechanical means. A modern-day elevator consists of a cab (also called a "cage", "carriage" or "car") mounted on a platform within an enclosed space called a shaft or sometimes a "<hl> hoistway <hl>". In the past, elevator drive mechanisms were powered by steam and water hydraulic pistons or by hand. In a "traction" elevator, cars are pulled up by means of rolling steel ropes over a deeply grooved pulley, commonly called a sheave in the industry. The weight of the car is balanced by a counterweight. Sometimes two elevators are built so that their cars always move synchronously in opposite directions, and are each other's counterweight.

A modern-day elevator consists of a cab (also called a "cage", "carriage" or "car") mounted on a platform within an enclosed space called a shaft or sometimes a " <hl> hoistway <hl> ".


Question: Elevator drive mechanisms have, in the past been, powered by what?

Answer: steam and water hydraulic pistons or by hand

Some people argue that elevators began as simple rope or chain hoists (see Traction elevators below). An elevator is essentially a platform that is either pulled or pushed up by a mechanical means. A modern-day elevator consists of a cab (also called a "cage", "carriage" or "car") mounted on a platform within an enclosed space called a shaft or sometimes a "hoistway". <hl> In the past, elevator drive mechanisms were powered by steam and water hydraulic pistons or by hand . <hl> In a "traction" elevator, cars are pulled up by means of rolling steel ropes over a deeply grooved pulley, commonly called a sheave in the industry. The weight of the car is balanced by a counterweight. Sometimes two elevators are built so that their cars always move synchronously in opposite directions, and are each other's counterweight.

Some people argue that elevators began as simple rope or chain hoists (see Traction elevators below). An elevator is essentially a platform that is either pulled or pushed up by a mechanical means. A modern-day elevator consists of a cab (also called a "cage", "carriage" or "car") mounted on a platform within an enclosed space called a shaft or sometimes a "hoistway". In the past, elevator drive mechanisms were powered by <hl> steam and water hydraulic pistons or by hand <hl>. In a "traction" elevator, cars are pulled up by means of rolling steel ropes over a deeply grooved pulley, commonly called a sheave in the industry. The weight of the car is balanced by a counterweight. Sometimes two elevators are built so that their cars always move synchronously in opposite directions, and are each other's counterweight.

In the past, elevator drive mechanisms were powered by <hl> steam and water hydraulic pistons or by hand <hl> .


Question: What is the weight of the elevator cage balanced by?

Answer: a counterweight

Some people argue that elevators began as simple rope or chain hoists (see Traction elevators below). An elevator is essentially a platform that is either pulled or pushed up by a mechanical means. A modern-day elevator consists of a cab (also called a "cage", "carriage" or "car") mounted on a platform within an enclosed space called a shaft or sometimes a "hoistway". In the past, elevator drive mechanisms were powered by steam and water hydraulic pistons or by hand. In a "traction" elevator, cars are pulled up by means of rolling steel ropes over a deeply grooved pulley, commonly called a sheave in the industry. <hl> The weight of the car is balanced by a counterweight . <hl> Sometimes two elevators are built so that their cars always move synchronously in opposite directions, and are each other's counterweight.

Some people argue that elevators began as simple rope or chain hoists (see Traction elevators below). An elevator is essentially a platform that is either pulled or pushed up by a mechanical means. A modern-day elevator consists of a cab (also called a "cage", "carriage" or "car") mounted on a platform within an enclosed space called a shaft or sometimes a "hoistway". In the past, elevator drive mechanisms were powered by steam and water hydraulic pistons or by hand. In a "traction" elevator, cars are pulled up by means of rolling steel ropes over a deeply grooved pulley, commonly called a sheave in the industry. The weight of the car is balanced by <hl> a counterweight <hl>. Sometimes two elevators are built so that their cars always move synchronously in opposite directions, and are each other's counterweight.

The weight of the car is balanced by <hl> a counterweight <hl> .


Question: How do elevators built in pairs work?

Answer: their cars always move synchronously in opposite directions,

Some people argue that elevators began as simple rope or chain hoists (see Traction elevators below). An elevator is essentially a platform that is either pulled or pushed up by a mechanical means. A modern-day elevator consists of a cab (also called a "cage", "carriage" or "car") mounted on a platform within an enclosed space called a shaft or sometimes a "hoistway". In the past, elevator drive mechanisms were powered by steam and water hydraulic pistons or by hand. In a "traction" elevator, cars are pulled up by means of rolling steel ropes over a deeply grooved pulley, commonly called a sheave in the industry. The weight of the car is balanced by a counterweight. <hl> Sometimes two elevators are built so that their cars always move synchronously in opposite directions, and are each other's counterweight. <hl>

Some people argue that elevators began as simple rope or chain hoists (see Traction elevators below). An elevator is essentially a platform that is either pulled or pushed up by a mechanical means. A modern-day elevator consists of a cab (also called a "cage", "carriage" or "car") mounted on a platform within an enclosed space called a shaft or sometimes a "hoistway". In the past, elevator drive mechanisms were powered by steam and water hydraulic pistons or by hand. In a "traction" elevator, cars are pulled up by means of rolling steel ropes over a deeply grooved pulley, commonly called a sheave in the industry. The weight of the car is balanced by a counterweight. Sometimes two elevators are built so that <hl> their cars always move synchronously in opposite directions, <hl> and are each other's counterweight.


Question: How do most elevator doors work?

Elevator doors protect riders from falling into the shaft. The most common configuration is to have two panels that meet in the middle, and slide open laterally. In a cascading telescopic configuration (potentially allowing wider entryways within limited space), the doors roll on independent tracks so that while open, they are tucked behind one another, and while closed, they form cascading layers on one side. This can be configured so that two sets of such cascading doors operate like the center opening doors described above, allowing for a very wide elevator cab. In less expensive installations the elevator can also use one large "slab" door: a single panel door the width of the doorway that opens to the left or right laterally. Some buildings have elevators with the single door on the shaft way, and double cascading doors on the cab.

Answer: have two panels that meet in the middle, and slide open laterally

Elevator doors protect riders from falling into the shaft. <hl> The most common configuration is to have two panels that meet in the middle, and slide open laterally . <hl> In a cascading telescopic configuration (potentially allowing wider entryways within limited space), the doors roll on independent tracks so that while open, they are tucked behind one another, and while closed, they form cascading layers on one side. This can be configured so that two sets of such cascading doors operate like the center opening doors described above, allowing for a very wide elevator cab. In less expensive installations the elevator can also use one large "slab" door: a single panel door the width of the doorway that opens to the left or right laterally. Some buildings have elevators with the single door on the shaft way, and double cascading doors on the cab.

Elevator doors protect riders from falling into the shaft. The most common configuration is to <hl> have two panels that meet in the middle, and slide open laterally <hl>. In a cascading telescopic configuration (potentially allowing wider entryways within limited space), the doors roll on independent tracks so that while open, they are tucked behind one another, and while closed, they form cascading layers on one side. This can be configured so that two sets of such cascading doors operate like the center opening doors described above, allowing for a very wide elevator cab. In less expensive installations the elevator can also use one large "slab" door: a single panel door the width of the doorway that opens to the left or right laterally. Some buildings have elevators with the single door on the shaft way, and double cascading doors on the cab.

The most common configuration is to <hl> have two panels that meet in the middle, and slide open laterally <hl> .


Question: What is a single panel door referred to as?

Answer: "slab" door

Elevator doors protect riders from falling into the shaft. The most common configuration is to have two panels that meet in the middle, and slide open laterally. In a cascading telescopic configuration (potentially allowing wider entryways within limited space), the doors roll on independent tracks so that while open, they are tucked behind one another, and while closed, they form cascading layers on one side. This can be configured so that two sets of such cascading doors operate like the center opening doors described above, allowing for a very wide elevator cab. <hl> In less expensive installations the elevator can also use one large "slab" door : a single panel door the width of the doorway that opens to the left or right laterally. <hl> Some buildings have elevators with the single door on the shaft way, and double cascading doors on the cab.

Elevator doors protect riders from falling into the shaft. The most common configuration is to have two panels that meet in the middle, and slide open laterally. In a cascading telescopic configuration (potentially allowing wider entryways within limited space), the doors roll on independent tracks so that while open, they are tucked behind one another, and while closed, they form cascading layers on one side. This can be configured so that two sets of such cascading doors operate like the center opening doors described above, allowing for a very wide elevator cab. In less expensive installations the elevator can also use one large <hl> "slab" door <hl>: a single panel door the width of the doorway that opens to the left or right laterally. Some buildings have elevators with the single door on the shaft way, and double cascading doors on the cab.

In less expensive installations the elevator can also use one large <hl> "slab" door <hl> : a single panel door the width of the doorway that opens to the left or right laterally.


Question: What design allows wider entryways within limited space?

Answer: a cascading telescopic configuration

Elevator doors protect riders from falling into the shaft. The most common configuration is to have two panels that meet in the middle, and slide open laterally. <hl> In a cascading telescopic configuration (potentially allowing wider entryways within limited space), the doors roll on independent tracks so that while open, they are tucked behind one another, and while closed, they form cascading layers on one side. <hl> This can be configured so that two sets of such cascading doors operate like the center opening doors described above, allowing for a very wide elevator cab. In less expensive installations the elevator can also use one large "slab" door: a single panel door the width of the doorway that opens to the left or right laterally. Some buildings have elevators with the single door on the shaft way, and double cascading doors on the cab.

Elevator doors protect riders from falling into the shaft. The most common configuration is to have two panels that meet in the middle, and slide open laterally. In <hl> a cascading telescopic configuration <hl> (potentially allowing wider entryways within limited space), the doors roll on independent tracks so that while open, they are tucked behind one another, and while closed, they form cascading layers on one side. This can be configured so that two sets of such cascading doors operate like the center opening doors described above, allowing for a very wide elevator cab. In less expensive installations the elevator can also use one large "slab" door: a single panel door the width of the doorway that opens to the left or right laterally. Some buildings have elevators with the single door on the shaft way, and double cascading doors on the cab.


Question: The single door is sometimes located where?

Answer: on the shaft way

Elevator doors protect riders from falling into the shaft. The most common configuration is to have two panels that meet in the middle, and slide open laterally. In a cascading telescopic configuration (potentially allowing wider entryways within limited space), the doors roll on independent tracks so that while open, they are tucked behind one another, and while closed, they form cascading layers on one side. This can be configured so that two sets of such cascading doors operate like the center opening doors described above, allowing for a very wide elevator cab. In less expensive installations the elevator can also use one large "slab" door: a single panel door the width of the doorway that opens to the left or right laterally. <hl> Some buildings have elevators with the single door on the shaft way , and double cascading doors on the cab. <hl>

Elevator doors protect riders from falling into the shaft. The most common configuration is to have two panels that meet in the middle, and slide open laterally. In a cascading telescopic configuration (potentially allowing wider entryways within limited space), the doors roll on independent tracks so that while open, they are tucked behind one another, and while closed, they form cascading layers on one side. This can be configured so that two sets of such cascading doors operate like the center opening doors described above, allowing for a very wide elevator cab. In less expensive installations the elevator can also use one large "slab" door: a single panel door the width of the doorway that opens to the left or right laterally. Some buildings have elevators with the single door <hl> on the shaft way <hl>, and double cascading doors on the cab.

Some buildings have elevators with the single door <hl> on the shaft way <hl> , and double cascading doors on the cab.


Question: What do elevator doors protect riders from?

Answer: falling into the shaft

<hl> Elevator doors protect riders from falling into the shaft . <hl> The most common configuration is to have two panels that meet in the middle, and slide open laterally. In a cascading telescopic configuration (potentially allowing wider entryways within limited space), the doors roll on independent tracks so that while open, they are tucked behind one another, and while closed, they form cascading layers on one side. This can be configured so that two sets of such cascading doors operate like the center opening doors described above, allowing for a very wide elevator cab. In less expensive installations the elevator can also use one large "slab" door: a single panel door the width of the doorway that opens to the left or right laterally. Some buildings have elevators with the single door on the shaft way, and double cascading doors on the cab.

Elevator doors protect riders from <hl> falling into the shaft <hl>. The most common configuration is to have two panels that meet in the middle, and slide open laterally. In a cascading telescopic configuration (potentially allowing wider entryways within limited space), the doors roll on independent tracks so that while open, they are tucked behind one another, and while closed, they form cascading layers on one side. This can be configured so that two sets of such cascading doors operate like the center opening doors described above, allowing for a very wide elevator cab. In less expensive installations the elevator can also use one large "slab" door: a single panel door the width of the doorway that opens to the left or right laterally. Some buildings have elevators with the single door on the shaft way, and double cascading doors on the cab.

Elevator doors protect riders from <hl> falling into the shaft <hl> .


Question: Throughout history, what type of engines were used for elevator machines?

Historically, AC motors were used for single or double speed elevator machines on the grounds of cost and lower usage applications where car speed and passenger comfort were less of an issue, but for higher speed, larger capacity elevators, the need for infinitely variable speed control over the traction machine becomes an issue. Therefore, DC machines powered by an AC/DC motor generator were the preferred solution. The MG set also typically powered the relay controller of the elevator, which has the added advantage of electrically isolating the elevators from the rest of a building's electrical system, thus eliminating the transient power spikes in the building's electrical supply caused by the motors starting and stopping (causing lighting to dim every time the elevators are used for example), as well as interference to other electrical equipment caused by the arcing of the relay contactors in the control system.

Answer: AC motors

<hl> Historically, AC motors were used for single or double speed elevator machines on the grounds of cost and lower usage applications where car speed and passenger comfort were less of an issue, but for higher speed, larger capacity elevators, the need for infinitely variable speed control over the traction machine becomes an issue. <hl> Therefore, DC machines powered by an AC/DC motor generator were the preferred solution. The MG set also typically powered the relay controller of the elevator, which has the added advantage of electrically isolating the elevators from the rest of a building's electrical system, thus eliminating the transient power spikes in the building's electrical supply caused by the motors starting and stopping (causing lighting to dim every time the elevators are used for example), as well as interference to other electrical equipment caused by the arcing of the relay contactors in the control system.

Historically, <hl> AC motors <hl> were used for single or double speed elevator machines on the grounds of cost and lower usage applications where car speed and passenger comfort were less of an issue, but for higher speed, larger capacity elevators, the need for infinitely variable speed control over the traction machine becomes an issue. Therefore, DC machines powered by an AC/DC motor generator were the preferred solution. The MG set also typically powered the relay controller of the elevator, which has the added advantage of electrically isolating the elevators from the rest of a building's electrical system, thus eliminating the transient power spikes in the building's electrical supply caused by the motors starting and stopping (causing lighting to dim every time the elevators are used for example), as well as interference to other electrical equipment caused by the arcing of the relay contactors in the control system.


Question: Why were AC motors used?

Answer: cost and lower usage applications where car speed and passenger comfort were less of an issue

<hl> Historically, AC motors were used for single or double speed elevator machines on the grounds of cost and lower usage applications where car speed and passenger comfort were less of an issue , but for higher speed, larger capacity elevators, the need for infinitely variable speed control over the traction machine becomes an issue. <hl> Therefore, DC machines powered by an AC/DC motor generator were the preferred solution. The MG set also typically powered the relay controller of the elevator, which has the added advantage of electrically isolating the elevators from the rest of a building's electrical system, thus eliminating the transient power spikes in the building's electrical supply caused by the motors starting and stopping (causing lighting to dim every time the elevators are used for example), as well as interference to other electrical equipment caused by the arcing of the relay contactors in the control system.

Historically, AC motors were used for single or double speed elevator machines on the grounds of <hl> cost and lower usage applications where car speed and passenger comfort were less of an issue <hl>, but for higher speed, larger capacity elevators, the need for infinitely variable speed control over the traction machine becomes an issue. Therefore, DC machines powered by an AC/DC motor generator were the preferred solution. The MG set also typically powered the relay controller of the elevator, which has the added advantage of electrically isolating the elevators from the rest of a building's electrical system, thus eliminating the transient power spikes in the building's electrical supply caused by the motors starting and stopping (causing lighting to dim every time the elevators are used for example), as well as interference to other electrical equipment caused by the arcing of the relay contactors in the control system.

Historically, AC motors were used for single or double speed elevator machines on the grounds of <hl> cost and lower usage applications where car speed and passenger comfort were less of an issue <hl> , but for higher speed, larger capacity elevators, the need for infinitely variable speed control over the traction machine becomes an issue.


Question: What problem arises for fast and large capacity elevators?

Answer: the need for infinitely variable speed control over the traction machine

<hl> Historically, AC motors were used for single or double speed elevator machines on the grounds of cost and lower usage applications where car speed and passenger comfort were less of an issue, but for higher speed, larger capacity elevators, the need for infinitely variable speed control over the traction machine becomes an issue. <hl> Therefore, DC machines powered by an AC/DC motor generator were the preferred solution. The MG set also typically powered the relay controller of the elevator, which has the added advantage of electrically isolating the elevators from the rest of a building's electrical system, thus eliminating the transient power spikes in the building's electrical supply caused by the motors starting and stopping (causing lighting to dim every time the elevators are used for example), as well as interference to other electrical equipment caused by the arcing of the relay contactors in the control system.

Historically, AC motors were used for single or double speed elevator machines on the grounds of cost and lower usage applications where car speed and passenger comfort were less of an issue, but for higher speed, larger capacity elevators, <hl> the need for infinitely variable speed control over the traction machine <hl> becomes an issue. Therefore, DC machines powered by an AC/DC motor generator were the preferred solution. The MG set also typically powered the relay controller of the elevator, which has the added advantage of electrically isolating the elevators from the rest of a building's electrical system, thus eliminating the transient power spikes in the building's electrical supply caused by the motors starting and stopping (causing lighting to dim every time the elevators are used for example), as well as interference to other electrical equipment caused by the arcing of the relay contactors in the control system.


Question: Generally, what powered the relay contoller?

Answer: MG set

Historically, AC motors were used for single or double speed elevator machines on the grounds of cost and lower usage applications where car speed and passenger comfort were less of an issue, but for higher speed, larger capacity elevators, the need for infinitely variable speed control over the traction machine becomes an issue. Therefore, DC machines powered by an AC/DC motor generator were the preferred solution. <hl> The MG set also typically powered the relay controller of the elevator, which has the added advantage of electrically isolating the elevators from the rest of a building's electrical system, thus eliminating the transient power spikes in the building's electrical supply caused by the motors starting and stopping (causing lighting to dim every time the elevators are used for example), as well as interference to other electrical equipment caused by the arcing of the relay contactors in the control system. <hl>

Historically, AC motors were used for single or double speed elevator machines on the grounds of cost and lower usage applications where car speed and passenger comfort were less of an issue, but for higher speed, larger capacity elevators, the need for infinitely variable speed control over the traction machine becomes an issue. Therefore, DC machines powered by an AC/DC motor generator were the preferred solution. The <hl> MG set <hl> also typically powered the relay controller of the elevator, which has the added advantage of electrically isolating the elevators from the rest of a building's electrical system, thus eliminating the transient power spikes in the building's electrical supply caused by the motors starting and stopping (causing lighting to dim every time the elevators are used for example), as well as interference to other electrical equipment caused by the arcing of the relay contactors in the control system.