› added 7 years ago

804

TIL Chimpanzees and some monkeys have entered the stone age.

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l7aWV TIL there’s a condition called “autophony” where your own voice sounds like it’s screaming inside your head due to a defect in your inner ear.
WdxB TIL that king Cambyses II of Persia used cats to invade Egypt. Knowing that cats held a high place in Egyptian society, the king brought hundreds of cats into his front lines. As a result, Egyptian archers refused to fire on his felines, fearing that they would injure the animals.
dDprr TIL using a red cross as a health symbol in video games can be illegal and can violate the Geneva Conventions, as it's a protected emblem reserved for medical services in wartime
ADQrn TIL about jailhouse lawyers; prisoners who study law behind bars to help other inmates with any legal advice they may need. These inmates often can't get themselves out, but want to help others who can.
1amV4 TIL that BMI was invented by a French "mathematician" - not a physician - who hoped it would be used as the basis for eugnenics