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TiL that Tobe Hooper, the director behind "The Texas Chainsaw Massacre" (1974), also directed the music video for Billy Idol's "Dancing with Myself"

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rRax TIL that stars twinkle because of turbulence in the atmosphere. As a result, if you see stars twinkling at a greater rate than normal, a storm front is probably moving in.
waxE TIL Engineers used to rely on imprecise calculations with slide rules that only showed three decimal points but designed the Empire State Building, Saturn V rocket with them. As a result, they designed conservatively by making walls thicker and bridges stronger than needed
vMEx TIL there is an online interactive map that allows you to see the effects of a nuclear blast in any area using google maps. You can use presets of actual bombs that exist as well as creating your own unique yield.
b64Z0 TIL the song the “Electric Slide” is about a vibrator
R7bPa TIL the phenomenon where you see faces in things (i.e. "The Man On The Moon" or cars) is called Pareidolia