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TIL the first 'talking car', the 1982 Datsun 810 Maxima, stored its voice messages ("lights are on", "left door is open", "fuel level is low", etc.) on a 3-inch, shock-resistant, plastic phonograph record.

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kL9d TIL the Last words of the inventor of Air Conditioner on his death bed were “It’ll be a Cold Day in Hell!”
ZdM4 TIL Engineers in Canada receive an Iron Ring to to remind them to have humility. It is in memory of a bridge that collapsed twice due to incorrect calculations involving iron.
wolAM TIL that Roger Boisjoly was an engineer working at NASA in 1986 that predicted that the O-rings on the Challenger would fail and tried to abort the mission but nobody listened to him
j5Wj TIL William Shatner was so cash strapped after Star Trek was cancelled in 1969 that he ended up living out of his pick up truck.
X0PE8 TIL South African musician Lucky Dube was killed in a shooting because his assailants allegedly thought he was a Nigerian