› added 5 years ago

385

TIL Orbital mechanics in 60 seconds

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QgQM TIL English muffins aren’t baked.
MeRpW TIL of Kathy Hobbs, a girl who had a premonition that she wouldn’t live to be 16. She reached the age and relaxed, making plans for her future. 3 months later, she was abducted and killed. She’d written letters to her family, dated 1 month before her birthday, telling them how much she loved them.
8a1RK TIL that NASA's Apollo astronauts had to pee into a sort of condom, but some would choose the large size, instead of the small or medium, out of pride, so they had to rename the sizes to extra-large, immense, and unbelievable.
m1WmR TIL that anti-climb paint, is a non-drying oil-based paint that can take over three years to cure. It's used to deter trespassing by making surfaces difficult to climb and identifying intruders, as it's tough to remove.
6E7jW TIL that knives used in airport restaurant kitchens have to be tethered and accounted for so that those knives do not make it onto airplanes.