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Inventions

Inventions
What Frank Whittle invented?

Ethyl gasoline
Radar
Jet propulsion
Sonar

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Inventions
What toy was invented by Joshua Lionel Cowen around 1900?

Electric train
Tinkertoys
Yo-yo
Raggedy Ann doll

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Inventions
Who invented Bifocal Lens?

Rudolf Diesel
Alfred B. Nobel
Benjamin Franklin
Thomas Alva Edison

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Inventions
When were blue jeans invented?

1860s
1870s
1900s
1850s

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Inventions
Who among the following invented the small pox vaccine?

Robert Koch
Robert Hooke
Edward Jenner
Louis Pasteur

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Inventions
What furniture item was invented by California furniture designer Charles Prior Hall in 1968?

Sofa bed
Captain's chair
Hammock
Waterbed

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