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TIL the planes that struck the World Trade Center Twin Towers weighed 100% more, carried 100% more fuel, and flew 100% faster than the plane whose impact the buildings were designed to withstand, a Boeing 707 airliner flying at landing approach speeds.

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BO4K TIL That when men don’t masturbate for 7 days their testosterone levels increase by 45.7%
1ax0W TIL a study found that wearing a tie can reduce blood flow to the brain. Men wearing ties & men without ties were scanned using MRI to measure the blood flow to the head; brains of tie-wearers on average received 7.5% less cerebral blood flow than brains of those with no ties.
4k01o TIL "flotsam" pertains to goods (i.e. shipping containers) that are floating on the surface of the water as the result of a wreck or accident. One who discovers flotsam is allowed to claim it unless someone else establishes their ownership of it. Even then, items may still be claimable by the finder
ne8Ro TIL that in traditional Chinese medicine, a tiger penis is said to have important therapeutic properties. The penis of a tiger when consumed is said to be a potent aphrodisiac and an effective treatment for erectile dysfunction. However, there is no scientific evidence to support this.
rNkae TIL that in medieval Europe, there existed a sport known as "rat-baiting." Spectators would gather in public squares to watch as trained dogs competed to catch and kill rats released into the arena. Betting on the outcome of these gruesome contests was commonplace.