› added 4 years ago

174

TIL about Hematohydrosis; a rare disease where humans sweat blood.

Read more ijpd.in

via reddit.com

JYXw4 TIL fire will burn in a spherical shape In microgravity environments, like space, because without gravity oxygen diffuses with random oxygen molecules drifting into the fire. Absent the upward flow of hot air, fires in microgravity will stay spherical and small
RJYl TIL A species of bird called the Passenger Pigeon once numbered in the billions in the US, and flocks passing overhead would blot out the sun sometimes for hours or days. They were hunted to extinction for their meat by 1900.
Br4ke TIL that while mustangs are often referred to as wild horses, because they are descended from once-domesticated horses, they are actually feral horses.
P1lle TIL Daniel Radcliffe (aka the actor who plays Harry Potter) suffers from the debilitating condition 'Cluster Headaches'
e0mgD TIL NASA once raided a Denny's as part of a sting operation to bust a 75 year old woman for possessing and attempting to sell a moon rock the size of a rice grain