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Gunpowder was invented in China, probably during the 1000's. They used gunpowder to make fireworks and signal flares.
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A telescope lets us view distant objects. Most telescopes use glass lenses and/or mirrors to detect visible light.
Learn all about the invention of cotton candy by William Morrison and John C. Wharton.
Cyrus Hall McCormick (February 15, 1809 - May 13, 1884) was an American inventor who developed the mechanical reaper.
Silk thread and cloth were first made by the Chinese about 4,000 years ago.
Dr. Charles Drew (1904-1950) was an African-American doctor and surgeon who started the idea of a blood bank.
'The Invention of the Light Bulb: Davy, Swan, and Edison'. The first electric light was made in 1800 by Humphry Davy.
Madam C. J. Walker (1867-1919) was an African-American inventor, businesswoman, and self-made millionaire.
Benjamin Franklin (1706-1790) was a USA founding father, inventor, and a Continental Congress delegate.
The microwave oven was invented as an accidental by-product of war-time (World War 2) radar research using magnetrons.
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