14956.What is the name of the CalTech seismologist who invented the scale used to measure the magnitude of earthquakes?
Charles Richter
Hiram Walker
Giuseppe Mercalli
Joshua Rumble
14952.In which decade was the first solid state integrated circuit demonstrated?
1950s
1960s
1970s
1980s
14960.Where is the village of Branston, after which the famous pickle is named?
Yorkshire
Lancashire
Staffordshire
Norfolk
14953.What J. B. Dunlop invented?
Pneumatic rubber tire
Automobile wheel rim
Rubber boot
Model airplanes
14958.This statesman, politican, scholar, inventor, and one of early presidents of USA invented the swivel chair, the spherical sundial, the moldboard plow, and the cipher wheel.
George Washington
Alexander Hamilton
John Adams
Thomas Jefferson
14954.Which scientist discovered the radioactive element radium?
Isaac Newton
Albert Einstein
Benjamin Franklin
Marie Curie