Inventions What James Watt invented? Rotary steam engine Hot air balloon Steam boat Diving bell Rotary steam engine Hot air balloon Steam boat Diving bell 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? 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 Enrico Fermi invented? X ray machine Nuclear reactor Betatron Cyclotron X ray machine Nuclear reactor Betatron Cyclotron ANSWER DOWNLOAD EXAMIANS APP
Inventions In which decade was the first solid state integrated circuit demonstrated? 1970s 1950s 1960s 1980s 1970s 1950s 1960s 1980s ANSWER DOWNLOAD EXAMIANS APP
Inventions In which decade were the first successful diode and triode vacuum tubes invented? 1880s 1800s 1900s 1890s 1880s 1800s 1900s 1890s ANSWER DOWNLOAD EXAMIANS APP
Inventions What plaything was invented by Joe McVicker in 1956? Play-Doh Silly Putty Etch-A-Sketch Lite-Brite Play-Doh Silly Putty Etch-A-Sketch Lite-Brite ANSWER DOWNLOAD EXAMIANS APP
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