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TIL Starting as a joke, a Duke university researcher brought a portable scanning electron microscope into her home. Then the organization realized it wasn't a bad idea as she used it for virtual outreach activities

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b9Lrp TIL the early Essex class carriers of WWII had a bizarre hangar deck catapult across the lower deck of the ship in order to launch scout planes out the side of the ship.
YppZG TIL many EXIT signs contain a radioactive isotope of hydrogen, tritium gas. This allows for radioluminescence, which makes the sign glow as a result of low-level beta radiation from the tritium decay.
4Xxa TIL when 3 people tried to sell Coca Cola secrets to Pepsi, Pepsi informed Coke and the FBI.
YpPlZ TIL that we humans have been dependent since 1977 on the blue blood of horseshoe crabs to keep our medicines safe. The crabs have been 'bled' for a chemical which is used to test for bacterial contamination in drugs. Finally, pharmaceutical companies are committing to a synthetic version.
oBWVY TIL that Artimus Pyle, the drummer from Lynard Skynard survived a plane crash and walked to a nearby house only to be shot by the homeowner. The homeowner saw a bloody long-haired man and winged him. Pyle survived that as well and made a full recovery.