› added 8 years ago

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TIL psychologist David Rosenhan made a deal with a hospital: he would try to admit at least one sane patient to the hospital, in order to test the validity of psycho-analysis. 41 out of 193 were considered imposters. In reality, Rosenhan sent no patients to the hospital.

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BJOK TIL when a woman is attracted to a man, she speaks in a higher pitch than she does normally.
GYwB1 TIL In 2014 the CDC once found a smallpox sample that they had lost and didn’t even know it. It was just laying around in some random storeroom.
NXvA1 TIL that female spotted hyenas have penises that they can pee out of. They also use them to mount other hyenas, both male and female, and to show dominance.
4kgOg TIL There is an unsanctioned “art museum” that Astronauts on Apollo twelve snuck onto the moon.
Qk0k TIL that police officers mark your tail light or trunk with their fingerprints when they pull you over, just in case something goes bad for them. Should the officer be attacked or “go missing” the fingerprint will provide evidence that can confirm the perpetrator’s vehicle.