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TIL that photoelectric cells (which effect explained by Einstein) switched the lights on during the exposition of Chicago from 1833. They were activated from photons coming from Acturus star ; those took 40 years to land there and were released from the star during the previous exposition

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gMawD TIL sniper schools use brain games such as ‘Kim's Game’ where items on a tray are memorized for one minute, covered and recalled to train their situational awareness skills.
d8yn7 TIL In Britain, drivers can be fined up to £5,000 if they are caught driving through a puddle which causes a pedestrian to be splashed.
6DnY TIL The Michael Vick dog-fighting case marked a change in the way dogs rescued from fighting rings are treated: Rather than being euthanized, many were rehabilitated and are now family pets and therapy dogs.
awMV0 TIL the Nintendo Switch sold 17.8 million units in its first year alone. That is more than Nintendo’s previous console, the Wii U, sold in its entire lifetime.
6EXMX TIL when actor Raymond Massey was divorced from wife Adrianne Allen they used, respectively, husband and wife divorce lawyers Dorothy Whitney and William Dwight Whitney. Raymond then married his lawyer Dorothy and Adrianne married her lawyer William