› added 10 months ago

45

TIL that in 1880, Alexander Graham Bell and Charles Sumner Tainter created the first device to transmit sound on a beam of light.

Read more wikipedia.org

via reddit.com

4Y6J TIL that Mike Tyson was addicted to coke and alcohol, getting high before some of his major fights. He used a fake penis with another person’s urine to avoid detection.
oBk87 TIL An American woman from California named Carla de Vries kissed Hitler at the Berlin Olympics in 1936
y7jM TIL The CEO of Netflix offered form a partnership with Blockbuster in the late 90s and the CEO of Blockbuster laughed in his face.
BgENb TIL in the 1980s a man with severe obsessive-compulsive disorder shot himself in the head in an attempt to commit suicide - Instead of killing him, the bullet destroyed the part of his brain that was responsible for his OCD, and he went on to become a straight-A college student five years later
n91G TIL that about 50% of the earth’s heat is generated from radioactive decay from elements such as uranium and thorium