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TIL how one way mirrors work, One-way mirrors are coated with a half-silvered layer, allowing the mirror to reflect half the light that strikes its surface.

Read more science.howstuffworks.com

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7rkn7 TIL that our brains congest and decongest our nostrils, changing our dominant nose hole every few hours.
VBolD TIL about the Essex, an American whaling ship that was sunk by a sperm whale in 1820. The survivors made for land off the South American coast. Seven crew members were cannibalized before eight survivors were rescued. The tragedy gained international attention, inspiring the novel, Moby Dick.
YpJ7B TIL that France enforced a ban on unlimited fizzy drinks in an effort to curb obesity
5Yw6P TIL that after being killed by Partisans, Mussolini was dumped in Piazzale Loreto, where in 1944 he had 15 partisans murdered and publicly displayed. His corpse was kicked, pissed on, and shot at by the Italian crowd, and he was hung upside-down with a meathook along with other Fascists.
69ElJ TIL that there are more possible QR code combinations than there are atoms in the universe.