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? Robert Oppenheimer Leslie R. Groves James B. Conant Vannevar Bush Robert Oppenheimer Leslie R. Groves James B. Conant Vannevar Bush ANSWER DOWNLOAD EXAMIANS APP
Inventions What J. B. Dunlop invented? Automobile wheel rim Rubber boot Model airplanes Pneumatic rubber tire Automobile wheel rim Rubber boot Model airplanes Pneumatic rubber tire ANSWER DOWNLOAD EXAMIANS APP
Inventions What Elisha Otis invented? The brake used in modern elevators Hydraulic Crane Jet Engine Turbine The brake used in modern elevators Hydraulic Crane Jet Engine Turbine ANSWER DOWNLOAD EXAMIANS APP
Inventions When were blue jeans invented? 1850s 1860s 1900s 1870s 1850s 1860s 1900s 1870s ANSWER DOWNLOAD EXAMIANS APP
Inventions In which decade was the Internet first implemented? 1980s 1950s 1940s 1960s 1980s 1950s 1940s 1960s ANSWER DOWNLOAD EXAMIANS APP
Inventions What Karl Benz invented? Streetcar Glider Steam turbine Gasoline powered automobile Streetcar Glider Steam turbine Gasoline powered automobile ANSWER DOWNLOAD EXAMIANS APP
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