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TIL the normal human heart beats about 100,000 times per day and sends over 2,000 gallons of blood throughout the body daily.

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PnOV TIL studying economics makes you less likely to cooperate with others when playing the Prisoners Dilemma. The more years you have studied economics, the more self-interested you become.
Zp0v4 TIL of Steganography, a field similar to cryptography, but that involves concealing a message rather than encoding it. For example, hiding an image in audio, or even hiding one image in the data of another. A famous example, a POW in Vietnam blinked TORTURE in morse code during a newscast.
QgXX TIL for severe crimes such as mutiny, the Royal navy used to punish men with “flogging round the fleet”. The criminal would be ferried from ship to ship, and whipped by the crew of every ship at port
ProO TIL That Joe Walsh, Guitarist in the Eagles and other bands, ran for president in 1980 on the platform of “free gas for everyone” and promised to make “Life’s Been Good” the new national anthem if he won.
EQeW TIL that in Cambodia and many other southeastern Asian countries gasoline is sold in 2 liter coke bottles and liquor bottles by small street-side vendors.