› added 6 years ago

150

TIL that "seeing stars" after exercise is normal most of the time, and is a result of blood flowing away from the brain and eyes

Read more livestrong.com

via reddit.com

8akk4 TIL of Soviet spy, Gevork Vartanian, who stopped the Nazi assassination of Roosevelt, Stalin, and Churchill at the age of 19; 400 German agents were arrested/killed because of his efforts, and the assassination was ultimately prevented.
QJ4aL TIL that the official divorce complaint of Mary Louise Bell, wife of world-famous physicist Richard Feynman, was that "He begins working calculus problems in his head as soon as he awakens. He did calculus while driving in his car, while sitting in the living room, and while lying in bed at night."
l79er TIL the golden wheel spider rolls down hills cartwheel-style to escape its predators
woLb1 TIL one filament of silk is stronger than one filament of steel.
gMwRW TIL the President of the United States technically has the right to shut off the internet for all US citizens in case of a "national emergency" – also known as the presidential internet kill switch.