Inventions What Benjamin Franklin invented? Radio Barometer Bifocal spectacles Hygrometer Radio Barometer Bifocal spectacles Hygrometer ANSWER DOWNLOAD EXAMIANS APP
Inventions FROZEN FOOD - Who discovered the first practical method of freezing food? R. Scott C. Birdsey G. Findus F. Rozenosh R. Scott C. Birdsey G. Findus F. Rozenosh ANSWER DOWNLOAD EXAMIANS APP
Inventions What J. B. Dunlop invented? Automobile wheel rim Rubber boot Pneumatic rubber tire Model airplanes Automobile wheel rim Rubber boot Pneumatic rubber tire Model airplanes ANSWER DOWNLOAD EXAMIANS APP
Inventions Who was the first American female to patent her invention, a method of weaving straw with silk? Amanda Jones Mary Kies Margaret Knight Marjorie Joyner Amanda Jones Mary Kies Margaret Knight Marjorie Joyner ANSWER DOWNLOAD EXAMIANS APP
Inventions What invention by Garnet Carter made its debut at the Fairyland Inn Resort in Lookout Mountain, Tennessee, in 1927? Swimming pool slide Ski lift Golf cart Miniature golf Swimming pool slide Ski lift Golf cart Miniature golf 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? Robert Oppenheimer Vannevar Bush Leslie R. Groves James B. Conant Robert Oppenheimer Vannevar Bush Leslie R. Groves James B. Conant ANSWER DOWNLOAD EXAMIANS APP
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