General Knowledge - Inventions

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"The secret to creativity is knowing how to hide your sources."
- Albert Einstein

Who invented the BALLPOINT PEN?

A. Biro Brothers
B. Waterman Brothers
C. Bicc Brothers
D. Write Brothers


In which decade was the first solid state integrated circuit demonstrated?

A. 1950sB. 1960s
C. 1970sD. 1980s


What J. B. Dunlop invented?

A. Pneumatic rubber tire
B. Automobile wheel rim
C. Rubber boot
D. Model airplanes


Which scientist discovered the radioactive element radium?

A. Isaac Newton
B. Albert Einstein
C. Benjamin Franklin
D. Marie Curie


When was barb wire patented?

A. 1874B. 1840
C. 1895D. 1900


What is the name of the CalTech seismologist who invented the scale used to measure the magnitude of earthquakes?

A. Charles Richter
B. Hiram Walker
C. Giuseppe Mercalli
D. Joshua Rumble


What Galileo invented?

A. Barometer
B. Pendulum clock
C. Microscope
D. Thermometer


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.

A. George Washington
B. Alexander Hamilton
C. John Adams
D. Thomas Jefferson

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