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TIL The cornea is one of only two parts of the human body without blood vessels

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kO8DW TIL that during the Great Depression, companies would print colorful patterns onto flour sacks so that women can make dresses out of them
ZpJND TIL: Flexible Curves were once called Lesbian Rulers, not because they "weren't straight" but because they were invented in Lesbos, Greece.
mxN0P TIL - Most of the smoke billowing up from a space shuttle launch is not exhaust. It is water vapor from the pool of water under the shuttle designed to absorb the acoustic shock waves that could otherwise tear the shuttle apart.
vPLo4 TIL the U.S. Detonated an Underground Nuclear Bomb in Mississippi in 1964.
x65kD TIL that the recently revived sport of SlamBall was invented by Mason Gordon, a TV writer who had penned episodes of Nickelodeon's "Kenan & Kel" and "Cousin Skeeter."