This is a timed quiz. You will be given 15 seconds per question. Are you ready?
15
What Galileo invented?
Correct!
Wrong!
Who invented the BALLPOINT PEN?
Correct!
Wrong!
In which decade was the first solid state integrated circuit demonstrated?
Correct!
Wrong!
What is the name of the CalTech seismologist who invented the scale used to measure the magnitude of earthquakes?
Correct!
Wrong!
The spiral flow in a stream caused by channel shape is called:
Correct!
Wrong!
When was barb wire patented:
Correct!
Wrong!
What J. B. Dunlop invented?
Correct!
Wrong!
Which scientist discovered the radioactive element radium?
Correct!
Wrong!
General Knowledge Quiz 21
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