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TIL that the deadliest sword ‘Damascus Steel’, known for its unique patterns, has its origins in India 2500 years before present.

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WNG4 TIL the male orgasm and ejaculation are separate processes and its possible to have a “dry” orgasm as well as a “retrograde” orgasm where the ejaculate flows backward into the bladder.
WkxVN TIL that since projectors cannot project the color black, they rely on an optical illusion using the darkness of a room to give the illusion of the color black.
v8b8 TIL an LA jail has a gay wing. Because many straight men want to live in the wing due to how safe it is officers screen inmates by testing their knowledge on gay bars and their cover charges.
xa57 TIL it exist a theorem called “The hairy ball theorem” that states “You can’t comb a hairy ball flat without creating a cowlick”
ne6DP TIL that high education has been associated with faster cognitive decline after diagnosis of Alzheimer's disease