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TIL an Iranian F-4 Phantom was attempting to shoot down a drone. The drone was being escorted by an F-22 Raptor which is a stealth fighter. The F-22 flew underneath the F-4 to examine it's munitions all without the F-4 noticing. The F-22 then told the F-4 "you really ought to go home", and it did.

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wLapP TIL that tanning in a UV bed a single time increases a person’s risk of developing melanoma by 20 percent.
gGQX TIL The Vikings put a lot of effort into grooming (especially hair and beards), wore eyeliner, were considered vain, and were absolute hits with the ladies. Their combs and other accessories were sought after because of their quality.
7r5ep TIL Freddie Mercury spent most of his childhood in India where he began taking piano lessons at the age of seven while living with relatives. Mercury was sent to study at St. Peter's School near Bombay. It was here when he started calling himself "Freddie".
695lQ TIL Invented by neuroscientist Dr. Michael Persinger, the God Helmet is an "apparatus" designed to stimulate specific areas of the brain using electromagnetic coils. Its purpose is to trigger altered states of consciousness and explore the neural underpinnings of spirituality and divine experience.
OjJ7 TIL that Mark Twain was born shortly after a visit by Halley’s Comet, and he predicted that he would “go out with it”, too. He died the day after the comet returned.