› added 6 years ago

257

TIL that tipping in America started so restaurant owners wouldn't have to pay black workers.

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4kdN5 TIL that Flamingos are born dull grey and get pink by eating algae and worms with beta carotene that makes them pink
ep0gD TIL A WW1 forerunner to cruise missiles, the pilotless Kettering Bug was designed to strike targets at a range of 75 miles.
BrV1r TIL that Wood Frogs don't hibernate in the winter like other animals, rather they cryogenically freeze their bodies, stopping all their organs INCLUDING their heart, and stay this way for months before thawing themselves out when the weather gets warmer in the spring.
awVRN TIL an attempted assassin armed with two pistols had them both misfire and the very not assassinated President Andrew Jackson beat him with a cane
WkkBX TIL There are still large concrete arrows across the US from the Transcontinental Airway System, which helped pilots prior to radio navigation