In which decade was the first solid state integrated circuit demonstrated?
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What is the name of the CalTech seismologist who invented the scale used to measure the magnitude of earthquakes?
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.
Where is the village of Branston, after which the famous pickle is named?
Until Victorian times, chocolate was thought of as a drink. When did the first chocolate bar appear?
What now-ubiquitous device was invented by Zenith engineer Eugene Polley in 1955?
This part-time race car driver invented the bucket seat in 1969. Who was he??
Who was the first American female to patent her invention, a method of weaving straw with silk?
154 videos|396 docs|723 tests
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154 videos|396 docs|723 tests
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