Exercise :: Inventions - Section 1
- Inventions - Section 1
| 89. | Who synthesized the first wholly artificial gene? |
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| 90. | FROZEN FOOD - Who discovered the first practical method of freezing food? |
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Answer: Option A Explanation: In the 1920s Clarence Birdseye discovered that if food was flash-frozen under pressure, it would freeze without the formation of ice crystals.
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| 91. | When was the Raggedy Ann doll patented? |
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Answer: Option A Explanation: Johnny Gruelle patented the Raggedy Ann doll in 1915. The Raggedy Andy doll and the Raggedy Ann books came later.
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| 92. | What Frank Whittle invented? |
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Answer: Option D Explanation: Invented in 1937.
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| 93. | When was the first Lionel trains manufactured? |
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Answer: Option C Explanation: Joshua Lionel Cowen and Harry C. Grant started the Lionel Manufacturing Company on Sept. 5, 1900 in New York City. The first train, which was called the Electric Express, was manufactured in 1901 and was an open gondola propelled by a fan motor. As time has passed, the trains have been made in different colors and styles.
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| 94. | What item, originally called the 'Whirlwind', was invented by Ives McGaffey in 1869? |
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| 95. | What office item was invented by Bette Nesmith Graham in 1951? |
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Answer: Option C Explanation: Bette's other claim to fame was being the mother of Michael Nesmith of the Monkees.
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| 96. | What George Pullman invented? |
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Answer: Option A Explanation: Invented in 1857.
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