Heinrich Hertz was at the heart of many technological developments stemming from his theory that electricity could be transmitted in...
Thomas Alva Edison
Thomas Alva Edison was an American inventor (February 11th, 1847 - October 18th, 1931) who invented the...
Johannes Gutenberg was born in the year 1398. He was a German goldsmith. He is the first European to have used movable type printing and also the...
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