Who invented the ballpoint pen?
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In which decade was the first solid state integrated circuit demonstrated?
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What J. B. Dunlop invented?
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Which scientist discovered the radioactive element radium?
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When was barb wire patented?
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What is the name of the CalTech seismologist who invented the scale used to measure the magnitude of earthquakes?
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What James Watt invented?
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Where is the village of Branston, after which the famous pickle is named?
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Who invented Jet Engine?
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What invention caused many deaths while testing it?
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Who invented Gunpowder?
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Until Victorian times, chocolate was thought of as a drink. When did the first chocolate bar appear?
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What now ubiquitous device was invented by Zenith engineer Eugene Polley in 1955?
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What Benjamin Franklin invented?
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This part-time race car driver invented the bucket seat in 1969. Who was he??
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What plaything was invented by Joe McVicker in 1956?
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Who was the first American female to patent her invention, a method of weaving straw with silk?
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Who invented Gramophone?
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What furniture item was invented by California furniture designer Charles Prior Hall in 1968?
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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?
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