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TIL that the current US Postmaster General started out as a letter carrier 30 years ago, gradually working her way up to the 2nd highest-paid job in the US government

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bv7 TIL that there exists a type of contact lens that you wear while sleeping and take off when you wake up; these lenses will restore your eyesight back to perfect while you sleep
WpoA TIL that “Dexter’s Laboratory” and “The Powerpuff Girls” are set within the same universe. “The Justice Friends” exist in both shows, creating the link.
e0o55 TIL in her youth, at school, Cecilia Payne-Gaposchkin attempted to test the efficacy of prayer by dividing her exam group in two groups, one using prayer and the other being a control group. The latter got better marks
5yND TIL that without an FCC ruling, known as the Carterfone decision, we might not have the internet as we know it today. The decision allowed connection of non-AT&T equipment to the phone network.
oYPA TIL there’s a way to highly exaggerate microscopic vibrations on surfaces from any video, allowing you to see things like blood pulses in the face, sound affects on glass and even recreate the sounds that caused the vibrations.