Inventions What type of system did Paul Nipkow, John Baird, and Charles Jenkins all invent? Television Telephone Electricity Early Warning Television Telephone Electricity Early Warning ANSWER DOWNLOAD EXAMIANS APP
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? Leslie R. Groves Vannevar Bush James B. Conant Robert Oppenheimer Leslie R. Groves Vannevar Bush James B. Conant Robert Oppenheimer ANSWER DOWNLOAD EXAMIANS APP
Inventions What invention caused many deaths while testing it? Race cars Parachute Ladders Dynamite Race cars Parachute Ladders Dynamite ANSWER DOWNLOAD EXAMIANS APP
Inventions What Benjamin Franklin invented? Hygrometer Barometer Bifocal spectacles Radio Hygrometer Barometer Bifocal spectacles Radio ANSWER DOWNLOAD EXAMIANS APP
Inventions Who invented Fountain Pen? Lewis E. Waterman Kirkpatrick Macmillan John J. Loud Sir Frank Whittle Lewis E. Waterman Kirkpatrick Macmillan John J. Loud Sir Frank Whittle ANSWER DOWNLOAD EXAMIANS APP
Inventions What item of apparel was invented by Ellery Chun, a Hawaiian clothing merchant, in 1931? String bikini Capri pants Muumuu Aloha shirt String bikini Capri pants Muumuu Aloha shirt ANSWER DOWNLOAD EXAMIANS APP
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