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? Vannevar Bush Robert Oppenheimer Leslie R. Groves James B. Conant Vannevar Bush Robert Oppenheimer Leslie R. Groves James B. Conant ANSWER DOWNLOAD EXAMIANS APP
Inventions What James Watt invented? Rotary steam engine Steam boat Hot air balloon Diving bell Rotary steam engine Steam boat Hot air balloon Diving bell ANSWER DOWNLOAD EXAMIANS APP
Inventions What 'game' was first produced by the Southern Novelty Company in Baltimore, Maryland in 1892? Ping Pong Frisbee Monopoly Ouija board Ping Pong Frisbee Monopoly Ouija board ANSWER DOWNLOAD EXAMIANS APP
Inventions Who invented Jet Engine? Sir Frank Whittle Lewis E. Waterman Roger Bacon Gottlieb Daimler Sir Frank Whittle Lewis E. Waterman Roger Bacon Gottlieb Daimler ANSWER DOWNLOAD EXAMIANS APP
Inventions What Sir Isaac Newton invented? Spectacles Reflecting telescope Microscope Chronometer Spectacles Reflecting telescope Microscope Chronometer ANSWER DOWNLOAD EXAMIANS APP
Inventions Who invented the phonograph? John Kruesi Thomas Edison Alexander Graham Bell Jules Levy John Kruesi Thomas Edison Alexander Graham Bell Jules Levy ANSWER DOWNLOAD EXAMIANS APP
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