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TIL in 1978 an undergrad student notified the chief structural engineer of Citicorp Center in Manhattan that the building would collapse in strong winds. Realizing the student was correct, the chief contacted NYPD and had a 10-block emergency plan drawn up while they quickly fixed the building.

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vPdZr TIL that to shoot ‘Jaws’ before digital effects, the crew built an exact replica of the boat that appears in the film, the ‘Orca,’ but with the ability to sink on command. The ‘Orca 2’ sank 24 times during filming. The boat was later placed on a private island where it was ransacked by fans.
4XP0X TIL that mosquitoes perform musical duets before mating.Male mosquitos "buzz" at between 550-650 Hertz while females buzz at about 350-450 Hz. When female mosquitos fly close to male mosquitos, they harmonize their wing flapping as a signifier of good health and fitness.If they can't,no copulation.
WkGMY TIL the EU's largest national park is in South America
BrG8e TIL that the character of Captain Ron, played by Kurt Russell, in the 1992 comedy of the same name was based off a real Captain Ron and trip the screenplay writer took with his family from Florida to Texas in 1969.
rRyQ1 TIL Atala is the first realm of the underworld in Hinduism. When a man enters Atala, women serve him an intoxicating cannabis drink that induces sexual energy. Then, these women enjoy sexual play with the traveller, who feels 'stronger than ten thousand elephants and forgets impending death'.