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Inventions

Inventions
Who invented the phonograph?

John Kruesi
Jules Levy
Alexander Graham Bell
Thomas Edison

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Inventions
When was the Raggedy Ann doll patented?

1919
1911
1915
1920

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Inventions
What J. B. Dunlop invented?

Model airplanes
Automobile wheel rim
Rubber boot
Pneumatic rubber tire

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Inventions
The Manhattan Project was started by President Roosevelt in 1942 to ensure that the U.S. beat the Germans in developing a nuclear bomb. Whom did Roosevelt appoint as scientific head the Manhattan Project?

James B. Conant
Vannevar Bush
Robert Oppenheimer
Leslie R. Groves

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Inventions
For over 500 years, paper was only available and sold as single sheets. In 1902, an inventive Australian used half size sheets of paper, a bit of glue and cardboard to create the what?

Telephone Book
Notepad
Notice Board
Calendar

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Inventions
What Elisha Otis invented?

Turbine
Jet Engine
The brake used in modern elevators
Hydraulic Crane

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