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TIL that 74 soldiers marched across a bridge at the same rate of the bridges natural frequency (mechanical resonance). This eventually caused the bridge to collapse and ever since the incident, soldiers have been ordered to “break step” when crossing bridges.

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xVn5 TIL that the only 15 letter word that can be spelled without repeating a letter is “uncopyrightable”
4XKVa TIL Illegal home distilling of pálinka became popular in the 18th century when peasant breweries were shut down. The practice was fuelled by the desire to make use of fruit that had fallen from the tree and could not be eaten, coupled with the knowledge that making it at home was much less expensive
XEg5Q TIL in 1998, 10 bodies were discovered in Benjamin Franklin’s basement during house renovations. The bodies belonged to his friend and anatomist William Hewson, who had a falling out with his mentor William Hunter and illegally procured them for study. Hunter’s body was not among them.
VMQDk TIL K9 "Officer Benny", a 2-year-old rescue Labrador Retriever, is Washington state's first wildlife crime detection dog. He is trained to find illegal shipments such as rhino horn, bear gallbladder, shark fin, firearms, spent casings, and elephant ivory.
xdo7 TIL In 2012, Jose Alvarenga, a Salvadorian fisherman, survived 438 days on a raft in the Pacific Ocean. With no motor or GPS or food, he survived on raw turtle and fish, rainwater, turtle blood, and his own urine. He is believed to be the longest surviving castaway.