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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]
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.
1974: Russell Alan Hulse and Joseph Hooton Taylor, Jr. discover indirect evidence for gravitational wave radiation in the Hulse–Taylor binary 1977: Frederick Sanger sequences the first DNA genome of an organism using Sanger sequencing
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
English: 2021 NASA Science Calendar 2021 NASA Science Calendar: Science and discovery have always required us to persevere. Through unprecedented times. Through storms and turbulence. Perseverance is more than facing challenges. It demonstrates our ability to hold on to a worthy goal with resilience.
2001 iPod. The iPod is a line of portable media players and multi-purpose pocket computers[2] designed and marketed by Apple Inc. The first version was released on October 23, 2001, about 8 1⁄2 months after the Macintosh version of iTunes was released.
Category: Products introduced in 1974. 12 languages. ... Download as PDF; Printable version; In other projects Wikidata item; Appearance. move to sidebar hide. Help
Download as PDF; Printable version; ... Helen Murray Free (1923–2021), ... Roman Egypt – usually credited with invention of the aeolipile, ...