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TIL The vibrator was invented before the vacuum cleaner (1883)

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BgNNx TIL that the asteroid linked to the extinction of dinosaurs would have generated a 2.9 mile high tsunami, if it had impacted the earth in the deep sea as opposed to the 328ft in height that it was.
4Xo6b TIL bears purr, similar to cats, when they are happy and comfortable.
g1Ay TIL Flickr recruits coders with ads hidden in its website’s source code
p8MeN TIL: Popup headlights were actually invented in the '30s. They came back in the 80's when auto manufacture needed a way to skirt minimum headlight height safety laws, and fell back out of fashion again due to modern regulations concerning headlights being on movable body work.
wLyY1 TIL: Mistletoe, commonly seen during Christmas with people kissing under it, is a parasitic plant that kills trees and produces poisonous berries.