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TIL FRB’s found in Milkyway

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grZEb TIL IBM made the punch card systems the Nazi’s used to catalog people who were sent to the camps. Anyone who had a number tattoo was most likely assigned it from an IBM punch card system.
MrQ8 TIL A guy from a Canadian island has sent over 4,000 messages in a bottle and received a response from 3,100 people all over the world
Zp85a TIL that in the 1970s, Sony made a prototype of a video game console, two decades before the PlayStation would release
Pxmw TIL Tycho Brahe had a tame elk. It died by drinking too much beer at a dinner and falling down some stairs.
gM408 TIL that purple is a "non-spectral color", which means that it exists only in our minds: there is no wavelength of light that corresponds to it. Our brain perceives purple when it sees a mixture of strong red and strong blue light, without any green.