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 Leslie R. Groves Robert Oppenheimer James B. Conant Vannevar Bush Leslie R. Groves Robert Oppenheimer James B. Conant ANSWER DOWNLOAD EXAMIANS APP
Inventions What Sir Isaac Newton invented? Reflecting telescope Chronometer Microscope Spectacles Reflecting telescope Chronometer Microscope Spectacles ANSWER DOWNLOAD EXAMIANS APP
Inventions When was barb wire patented? 1900 1874 1840 1895 1900 1874 1840 1895 ANSWER DOWNLOAD EXAMIANS APP
Inventions What is the name of the CalTech seismologist who invented the scale used to measure the magnitude of earthquakes? Joshua Rumble Giuseppe Mercalli Hiram Walker Charles Richter Joshua Rumble Giuseppe Mercalli Hiram Walker Charles Richter ANSWER DOWNLOAD EXAMIANS APP
Inventions What Enrico Fermi invented? Nuclear reactor Betatron Cyclotron X ray machine Nuclear reactor Betatron Cyclotron X ray machine ANSWER DOWNLOAD EXAMIANS APP
Inventions What now-ubiquitous device was invented by Zenith engineer Eugene Polley in 1955? Microwave oven Remote control VCR Calculator Microwave oven Remote control VCR Calculator ANSWER DOWNLOAD EXAMIANS APP
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