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146

TIL N95 rating is for the medium particle range

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rRPEe TIL that after Puyi, the last Emperor of China, was dethroned, he worked as a street cleaner and would visit the Forbidden Palace as a tourist and point out the various objects on display that he used to own as Emperor.
oR5Jr TIL about hindsight bias—the tendency to believe, after an event, that we could have predicted its outcome with certainty. It also leads people to judge historical figures based on prevailing contemporary opinions.
ANbd TIL that the march ‘Here Comes the Bride’ is from an opera where the marriage is almost an immediate failure, and the piece is sung just before several wedding guests are murdered
YdVA TIL in 2009, scientists in Iceland unexpectedly drilled into a magma chamber 2.1 km below ground, creating the world’s first magma enhanced geothermal energy source capable of powering 80,000 homes.
aYD0 TIL that it was not until March of this year that Great Britain finally paid off it’s last debt from World War 1.