› added 3 months ago

14

TIL: that there is no consistent evidence linking serotonin levels or activity to depression.

Read more nature.com

via reddit.com

xVkZ7 TIL Before virtual game achievements, Activision used to send physical iron on patches to players who mailed in photographs of their high scores
rDP0 TIL that Ancient Greek slingers used pellets inscribed with the word “Catch”
PJKg TIL famous mathematician Paul Erdos was once challenged to quit taking amphetamines for one month by a concerned friend. He succeeded, but complained “You’ve showed me I’m not an addict, but I didn’t get any work done…you’ve set mathematics back a month”.
8aRB8 TIL of the Welsh Christmas tradition, Mari Lwyd, in which a skeletal horse mounted on a pole visits your door singing poetry. You are then compelled to engage in a battle of rhymes and must best it or else you’ll have to let it inside and give it food.
D1l4e TIL that astronauts inside the ISS are not experiencing lack of gravity. At that altitude, gravity is about 90% that of the surface of Earth. The station is simply in an endless state of freefall which is what makes things float inside it.