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 Robert Oppenheimer Vannevar Bush Leslie R. Groves James B. Conant Robert Oppenheimer Vannevar Bush Leslie R. Groves ANSWER DOWNLOAD EXAMIANS APP
Inventions What Benjamin Franklin invented? Hygrometer Radio Bifocal spectacles Barometer Hygrometer Radio Bifocal spectacles Barometer ANSWER DOWNLOAD EXAMIANS APP
Inventions What item of apparel was invented by Ellery Chun, a Hawaiian clothing merchant, in 1931? Capri pants Aloha shirt String bikini Muumuu Capri pants Aloha shirt String bikini Muumuu ANSWER DOWNLOAD EXAMIANS APP
Inventions In which decade was the telegraph invented? 1890s 1870s 1810s 1840s 1890s 1870s 1810s 1840s ANSWER DOWNLOAD EXAMIANS APP
Inventions What African-American inventor received 5 patents in the field of shoemaking? Ernest Just Lewis Latimer Jan Ernst Matzeliger Elijah McCoy Ernest Just Lewis Latimer Jan Ernst Matzeliger Elijah McCoy ANSWER DOWNLOAD EXAMIANS APP
Inventions What Thomas Davenport invented? Screw propellor Chesterfield Electric streetcar Sleeping (railway) car Screw propellor Chesterfield Electric streetcar Sleeping (railway) car ANSWER DOWNLOAD EXAMIANS APP
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