Inventions What is the name of the CalTech seismologist who invented the scale used to measure the magnitude of earthquakes? Joshua Rumble Charles Richter Hiram Walker Giuseppe Mercalli Joshua Rumble Charles Richter Hiram Walker Giuseppe Mercalli ANSWER DOWNLOAD EXAMIANS APP
Inventions Who invented Bicycle? Karl Benz Leo H Baekeland Evangelista Torricelli Kirkpatrick Macmillan Karl Benz Leo H Baekeland Evangelista Torricelli Kirkpatrick Macmillan ANSWER DOWNLOAD EXAMIANS APP
Inventions What J. B. Dunlop invented? Automobile wheel rim Model airplanes Pneumatic rubber tire Rubber boot Automobile wheel rim Model airplanes Pneumatic rubber tire Rubber boot ANSWER DOWNLOAD EXAMIANS APP
Inventions Which insurance salesman invented the fountain pen in 1884? Charles Kettering Lewis Edson Waterman Sir William Grove George Fountain Charles Kettering Lewis Edson Waterman Sir William Grove George Fountain 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? James B. Conant Leslie R. Groves Robert Oppenheimer Vannevar Bush James B. Conant Leslie R. Groves Robert Oppenheimer Vannevar Bush ANSWER DOWNLOAD EXAMIANS APP
Inventions Who invented Gunpowder? Sir Frank Whittle Roger Bacon Leo H Baekeland G. Ferdinand Von Zeppelin Sir Frank Whittle Roger Bacon Leo H Baekeland G. Ferdinand Von Zeppelin ANSWER DOWNLOAD EXAMIANS APP
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