› added 8 years ago

75

TIL that if you hyperventilate before swimming underwater or diving, you artificially reduce the amount of CO2 in your bloodstream, preventing the body’s ‘urge to breathe’ trigger, making you blackout and rapidly drown without warning.

Read more wikipedia.org

via reddit.com

9Yxv7 TIL In 2012 a scientific study predicted a 39 inch rise in sea level along the North Carolina coast over the next century. In response, North Carolina lawmakers passed a law banning the use of scientific predictions of sea level rise when considering new developments along the coast.
XEk4R TIL NASA's spacecraft crawler transport vehicle gets 35 feet/gallon of diesel fuel.
XEjY6 TIL that it's very hard to get dizzy on the International Space Station even after spinning a lot because the astronauts' vestibular (allegedly) shuts down in the first 24-48 hours of being there.
KYKvR TIL Princess Zelda from The Legend of Zelda was named after Zelda Fitzgerald, the wife of F. Scott Fitzgerald
ep7EL TIL about the “golden horse”, thought to be the oldest existing horse breed, and has a very distinctive metallic sheen to their coats.