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TIL amputees who experience Phantom Itching where their limb use to be often use a mirror and scratch the opposite limb to trick the brain into satisfying the urge.

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d8d59 TIL the saying "Perfect is the enemy of good" means to go with what works well rather than trying for perfection. Sir Watson-Watt who developed radar in WW2 Britain had a “cult of the imperfect” saying "Give them the third best to go with; the second best comes too late, the best never comes.”
y9vV TIL the difference between Wile E. Coyote and Ralph Coyote. Both had brown fur and pointy ears, but Wile E. had a black nose, yellow eyes, and went after the Roadrunner, while Ralph had a red nose, white eyes, and went after sheep (guarded by Sam Sheepdog).
jlwR TIL that David Yost, the original Blue Power Ranger, left the show due to the harassment he received from creators, producers, writers over his being gay, causing him to have a nervous breakdown upon leaving. “The reason that I walked off is that I was called ‘f—–‘ one too many times,” Yost says.
7rP47 TIL that the elderly in Japan decided to clear up the nuclear waste so that the young were not exposed to it.
kQw4 TIL the worlds most wanted hacker was himself hacked and arrested because his password was his cat’s name plus ‘123’.