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TIL: USSR used nuclear bomb to stop gas well blowout in Uzbekistan

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7rvGX TIL George Lucas helped his friend Francis Ford Coppola shoot and edit The Godfather.
9Y0Ym TIL about the scaly-foot snail. These snails have been found living in volcanic vents in the Indian ocean. Part of their adaptation includes an iron shell.
5YxXr TIL that legendary stand up comedian Lenny Bruce pretended to be gay to get out of service after four invasions in the Pacific in 1945, after 30 months of service. Bruce got his Undesirable Discharge papers 3 weeks after confessing to a navy doctor... He was the inpiration for Crpl. Klinger in MASH.
1aZNr TIL that the US reached peak coal mining employment in 1923, when there were 883,000 coal miners employed in the US. Today, there are only 50,000 coal miners in the US. Nevertheless, the US produces about 50% more coal than it did 100 years ago.
EgepV TIL that early semiconductors, before CAD, were made by hand drawing the circuit design on graph paper at an extremely enlarged scale, then cutting that design onto a film called Rubylith, which was used to create the final photolithographic mask. Repeat for all layers on a chip.