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The timeline of historic inventions is a chronological list of particularly important or significant ... Bone tools in Africa by Homo erectus [10] 900 kya – 40 ...
Named after Edwin Hubble, one of history's most important astronomers, the telescope was launched in 1990. The Hubble doesn't have one single inventor, but the collaborative effort has allowed ...
1980 – Strangeness as a signature of quark-gluon plasma predicted [10] 1980 – Richard Feynman proposes quantum computing; 1980 – Quantum Hall effect; 1981 – Alan Guth Theory of cosmic inflation proposed [dubious – discuss] 1982 – Aspect experiment confirms violations of Bell's inequalities; 1981 – Fractional quantum Hall effect ...
A timeline of United States inventions (after 1991) encompasses the ingenuity and innovative advancements of the United States within a historical context, dating from the Contemporary era to the present day, which have been achieved by inventors who are either native-born or naturalized citizens of the United States.
Strokes of genius Each and every day, there are brilliant minds working behind the scenes to develop inventions and technology that make our lives better, easier, or just plain more fun. Depending ...
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Timeline of United States inventions (1890–1945) Timeline of United States inventions (after 1991) 0–9. 2-in-1 laptop; 8-track cartridge; 19-inch rack; 90 nm ...
2000 BC: Multiplication tables in a base-60, rather than base-10 (decimal), system from Babylon. [7] 2000 BC: Primitive positional notation for numerals is seen in the Babylonian cuneiform numerals. [8] However, the lack of clarity around the notion of zero made their system highly ambiguous (e.g. 13 200 would be written the same as 132). [9]