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TIL that the U.S. Military listed all the songs they played for Manuel Noriega in Operation Just Cause (1989, Panama) in an after action report and the military took requests from service members on the ground in Panama

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grZr4 TIL in 1862 atmospheric rivers created a 40-day mega-storm in California that utterly destroyed a third of the state. Research shows that such a storm happens every 200 years.
OdrL TIL physicists have experimentally achieved temperatures below absolute zero. Using supercooled potassium gas and a system of lasers and magnetic fields to precisely manipulate the potassium atoms, physicists successfully “cooled” the gas to a few billionths of a degree below absolute zero.
pPgb TIL that the US and the USSR’s only direct military confrontation happened in October 1944, over the serbian town of Niš. It is considered top secret by both governments, and the exact number of casualties is unkown.
4Xmjw TIL the nuclear bomb tests in the 1940s can help identify forged paintings by using radiocarbon dating. Authenticators can count the number of carbon 14 isotopes and decide whether the number is realistic for the time. Carbon 14 isotopes are known to have dramatically increased after these tests.
WkwEB TIL A 40,000-year-old bracelet was found in Siberia. It was made by an extinct human species called Denisovans. Homosapians did not produce bracelets of this technical sophistication until 10,000 years ago. It is one of the oldest pieces of jewellery ever discovered.