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TIL Back in 2000, James Cameron discussed filming at International Space Station with Tom Cruise. When Cameron asked "...somebody’s gotta train us as engineers.’ Tom Cruise said, ‘No problem, I’ll train as an engineer.’

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oB8vo TIL that a river of molten tin is the mold they used to make perfectly flat glass
N7r5e TIL: Blowing into a Nintendo game cartridge does not fix a game that won’t load by removing dust. The blowing is a placebo. It is the act of removing and reinserting the cartridge into the system that increases the chance of a good connection. Moisture in your breath may even damage your games.
R7P04 TIL that Michelson-Morley experiments (to prove a theory competing with special relativity) are still being conducted, with the first one dating back to 1881
grZj8 TIL Hugh Jackman took a pay cut to ensure "Logan" would be rated R. Since 'R-rated' films typically limit the overall audience that can attend, Jackman's reduced salary brought the budget down to an acceptable place to warrant an R rating.
XGaj TIL in 2014 Japan debuted the world’s largest indoor farm using LED lights that emit wavelengths optimal for plant growth; The upshot: grows 2.5x faster than outdoors; reduces produce loss from 50% to just 10% and cuts water usage to just 1%