› added 8 months ago

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TIL that there are over 17,000 fracture critical bridges in the US. These bridges are subject to collapse when there is a single structural failure.

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via reddit.com

RQ8w TIL that JFK would not let Sammy Davis play in the White house in 1961 after his interracial marriage Illegal in 31 states at the time. His marriage not only made headlines, it inspired death threats and demonstrations and forced Davis to hire 24-hour armed guards.
PbMG TIL that Henry Heimlich, founder of the Heimlich maneuver, purposely infected Africans and Chinese with MALARIA because he thought it would cure them of HIV/AIDS. He still believes this to to be true.
VMAWQ TIL --Christmas 2013 more than 250 passengers on Calgary-bound flights were part of a "Christmas miracle" done by WestJet. Santa Claus appeared on life-size screens at boarding gates and asked passengers what they wanted for Christmas. When the planes landed the gifts were on the baggage carousel.
xVDg5 TIL almost all of the vanilla produced in today’s world is pollinated by hand utilizing a technique developed by an enslaved boy back in 1841.
wOJE TIL the reason for sightings of Bloody Mary, is because of something called the ‘Caputo effect’