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TIL From the Feynman's theory that when an ant has found some food, he leaves a much stronger trail than when he’s just wandering around.

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7rlPr TIL that a man named Paul Brown invented the upside-down squeeze bottle in 1991. He sold his product to everyone from shampoo companies to ketchup companies to NASA, and then four years later he sold his company for $13 million.
168dr TIL "Willie McBride," the fallen soldier eulogized in the folk song "No Man's Land (Green Fields of France)," is both fictional and real. The writer invented his name, but several young men named "William McBride" did die in World War I and match some or all of the song's description.
WkDn4 [TIL] there is no federal minimum drinking age law. It doesn't have that authority. An act signed by Reagan, however, supersedes states' rights by punishing any state who ignores this by reducing federal highway apportionment by 10% in an effort to reduce drunk driving.
MejeA TIL that in German there are two verbs for eating, one exclusively for humans and one for animals. In fact, you can use the animal verb to imply (impolitely) that someone eats like an animal.
KONpG TIL Kazuhiko Torishima, editor of Dr. Slump and Dragon Ball, only started working at Shueisha (publisher of Weekly Shōnen Jump) because he wanted to work on Japanese Playboy. Torishima was disapointed when Shueisha started sending him boxes of manga as he had never worked with manga before.