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In 1974, 3M co-workers Arthur Fry and Spencer Silver invented the now-familiar Post-it Note, with the former creating the paper and the latter developing the glue. First Digital Camera
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: 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. [507] 1974: The Rubik's cube is invented by Ernő Rubik which went on to be the best selling puzzle ever. [508]
June 29 – America Sings attraction opens to the public for the first time at Disneyland in Anaheim, California. June 30 – Alberta Williams King, mother of the late Martin Luther King Jr., is killed during a church service in Atlanta, Georgia.
The Torino scale, invented by Richard P. Binzel in 1999, is a method for categorizing the impact hazard associated with near-Earth objects (NEOs) such as asteroids and comets. It was intended as a tool for astronomers and the public to assess the seriousness of collision predictions, by combining probability statistics and known kinetic damage ...
B. Babbitt (alloy) Baby monitor; Bait car; Ballistic electron emission microscopy; Balloon catheter; Ballpoint pen; Banjo clock; Barbed wire; Barcode; Barcode reader
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At the end of 1974, the average monthly Social Security benefit for retired workers was $188, or just over $2,256 annually. As of November 2024, benefits for retired workers have grown substantially.