› added 5 years ago

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TIL Bismuth 209 was long thought to be a stable isotope until scientists discovered it actually has a half life of 19 quintillion years

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DQgZr TIL of a German cave, Hohle Fels, where some of the oldest human artifacts have been found. A 35,000-40,000 year old human figurine and a 42,000 year old flute have been found there.
VMmwG TIL that astronaut Chris Hadfield was temporarily blinded in 2001 during a spacewalk. He was blinded by a drop of a mixture of oil and soap solution that got in his eye. The solution is used to keep the visors on an astronaut's helmet fog-free.
5YW8n TIL Janet Jackson gifted Larry King a pair of suspenders with open holes around the nipples. "I wore them once, they were cute."
R5BlQ TIL Lockheed Martin once planned a 6000 tonne nuclear powered aircraft transport which would carry and deploy fighter jets.
R74g8 TIL Friday the 13th occurs at least once a year every year, but can occur up to three times in the same year