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 James B. Conant Robert Oppenheimer Leslie R. Groves Vannevar Bush James B. Conant Robert Oppenheimer Leslie R. Groves ANSWER DOWNLOAD EXAMIANS APP
Inventions In which decade were the first successful diode and triode vacuum tubes invented? 1800s 1890s 1880s 1900s 1800s 1890s 1880s 1900s ANSWER DOWNLOAD EXAMIANS APP
Inventions What invention is credited to the Russian born American inventor Vladimir Kosma Zworykin? Television Radio Telegraph Dishwasher Television Radio Telegraph Dishwasher ANSWER DOWNLOAD EXAMIANS APP
Inventions In which year was MIDI introduced? 1977 1987 1973 1983 1977 1987 1973 1983 ANSWER DOWNLOAD EXAMIANS APP
Inventions Who invented the Seed Drill? Jethro Tull Woodie Guthrie Arlo Guthrie Thomas Hines Jethro Tull Woodie Guthrie Arlo Guthrie Thomas Hines ANSWER DOWNLOAD EXAMIANS APP
Inventions Who among the following invented the small pox vaccine? Edward Jenner Robert Koch Robert Hooke Louis Pasteur Edward Jenner Robert Koch Robert Hooke Louis Pasteur ANSWER DOWNLOAD EXAMIANS APP
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