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Scientist of the 20th century their inventions and their history?
Wiki User
∙ 14y ago
1901
King Camp Gillette invents the double-edged safety razor.
The first radio receiver, successfully received a radio transmission.
Hubert Booth invents a compact and modern vacuum cleaner.
1902
Willis Carrier invents the air conditioner.
The lie detector or polygraph machine is invented by James Mackenzie.
The birth of the Teddy Bear.
George Claude invented neon light.
1903
Edward Binney and Harold Smith co-invent crayons.
Bottle-making machinery invented by Michael J. Owens.
The Wright brothers invent the first gas motored and manned airplane.
Mary Anderson invents windshield wipers.
William Coolidge invents ductile tungsten used in lightbulbs.
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∙ 14y ago
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Scientist who invented sonar?
A Canadian inventor named Reginald Fessenden invented SONAR in the early 20th century.
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Albert Einstein was born in the 19th century (1879) and died in the middle of the 20th century (1955). His major contributions to physics were made during the early 20th century.
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There were many inventions made during the end of the 19th and beginning of the 20th century. These included the telephone and the light bulb.
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Do you have television in the nineteenth century?
No. Television was invented by Manfred von Ardenne, a German scientist, in 1930. So it was invented in the 20th century.
