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  2. Timeline of historic inventions - Wikipedia

    en.wikipedia.org/.../Timeline_of_historic_inventions

    1974: The lithium-ion battery is invented by M. Stanley Whittingham, and further developed in the 1980s and 1990s by John B. Goodenough, Rachid Yazami and Akira Yoshino. It has impacted modern consumer electronics and electric vehicles. [508] 1974: The Rubik's cube is invented by Ernő Rubik which went on to be the best selling puzzle ever. [509]

  3. 1974 in science - Wikipedia

    en.wikipedia.org/wiki/1974_in_science

    February 8 – After 84 days in space, the last crew of the temporary American space station Skylab return to Earth.; February 13–15 – Sagittarius A*, thought to be the location of a supermassive black hole, is identified by Bruce Balick and Robert Brown using the baseline interferometer of the United States National Radio Astronomy Observatory.

  4. 1984 in science - Wikipedia

    en.wikipedia.org/wiki/1984_in_science

    Download as PDF; Printable version; ... Technology; Sustainable energy research ... The year 1984 in science and technology involved some significant events.

  5. Timeline of United States inventions - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_United_States...

    The following articles cover the timeline of United States inventions: Timeline of United States inventions (before 1890), before the turn of the century; Timeline of United States inventions (1890–1945), before World War II; Timeline of United States inventions (1946–1991), during the Cold War

  6. Timeline of scientific discoveries - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_scientific...

    499: Aryabhata creates a particularly accurate eclipse chart. As an example of its accuracy, 18th century scientist Guillaume Le Gentil , during a visit to Pondicherry, India, found the Indian computations (based on Aryabhata's computational paradigm) of the duration of the lunar eclipse of 30 August 1765 to be short by 41 seconds, whereas his ...

  7. Timeline of fundamental physics discoveries - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_fundamental...

    1984 – W and Z bosons directly observed; 1984 – First laboratory implementation of quantum cryptography; 1987 – High-temperature superconductivity discovered in 1986, awarded Nobel prize in 1987 (J. Georg Bednorz and K. Alexander Müller) 1989–98 – Quantum annealing; 1993 – Quantum teleportation of unknown states proposed

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  9. Timeline of electrical and electronic engineering - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_electrical_and...

    This follows since the 1930s, several improvements to the manufacturing technology. The company Ampex introduces the "VR 1000" the first video recorder. That same year, CBS uses it for the first magnetic video tape recording (VTR) from. Although other programs are produced in color since 1954, the VTR cannot record color.

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