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TIL space has been continuously occupied by humans for 14 years 316 days as of today.

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16a1r TIL the unique “sizzling” bass sound of the iconic TR-808, which is now used in almost all pop music, is made by a specific set of rejected transistors. Because they were a mistake, the transistors, and therefore the 808 itself, cannot be reproduced.
v1OA4 TIL denatured alcohol (sold in hardware stores) isn't chemically different from drinking alcohol. The only difference is it's purposely laced with poison and nausea inducing additives so you can't drink it. This compromises allows it to be sold without alcohol tax and ensures people don't drink it.
Br5rb TIL that Roman Emperor Nero during gladiatorial fights looked at the arena through a concave emerald to eliminate the glare of the sun and his nearsightedness. Those may have been the first sunglasses in history.
Edyo TIL Dell was started by a college kid taking on HP and Compaq from his dorm room - and made $74M his first year.
b6LBQ TIL there is a Las Vegas, New Mexico AND that it was where most of the 1984 film Red Dawn was filmed