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 James B. Conant Leslie R. Groves Vannevar Bush Robert Oppenheimer James B. Conant Leslie R. Groves Vannevar Bush ANSWER DOWNLOAD EXAMIANS APP
Inventions When were bar code scanners invented? 1950s 1970s 1940s 1960s 1950s 1970s 1940s 1960s ANSWER DOWNLOAD EXAMIANS APP
Inventions Who invented Bicycle? Karl Benz Leo H Baekeland Kirkpatrick Macmillan Evangelista Torricelli Karl Benz Leo H Baekeland Kirkpatrick Macmillan Evangelista Torricelli ANSWER DOWNLOAD EXAMIANS APP
Inventions What Benjamin Franklin invented? Radio Bifocal spectacles Hygrometer Barometer Radio Bifocal spectacles Hygrometer Barometer ANSWER DOWNLOAD EXAMIANS APP
Inventions Who developed the idea of Crop Rotation? Turnip Townsend Cabbage Carlson Potato Peterson Swede Svenson Turnip Townsend Cabbage Carlson Potato Peterson Swede Svenson ANSWER DOWNLOAD EXAMIANS APP
Inventions What James Watt invented? Steam boat Hot air balloon Rotary steam engine Diving bell Steam boat Hot air balloon Rotary steam engine Diving bell ANSWER DOWNLOAD EXAMIANS APP
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