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TIL that Nazi Germany conceived of a weapon called the "Sun Gun", which would have been a giant mirror in outer space that used concentrated sunlight to destroy entire cities.

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jp8E TIL- In 1948 a Japanese bank robber killed 12 bank employees by dressing as a doctor and requesting to inoculate them against dysentery. They complied and 10 died immediately due to cyanide poisoning. He took the equivalent of 720 dollars.
5YnnP TIL there is a city in Siberia called Akademgorodok created by Khrushchev to be an academic utopia filled with nothing but scientists with its own schools, single family homes and markets--considered luxury living at the time
4kNyo TIL Japan has over 3000 businesses that have been operating for over 200 years
6EaY TIL the town of “Fucking, Austria” modified their signs in 2005 to be theft resistant
WkOo9 TIL Cells in the retina actually decline in sensitivity as we age. Meaning that colors such as blue appear washed out as years pass. That means that the sky actually was bluer when you were younger.