› added 3 years ago

75

TIL that universal peace symbol comes up from merging letters "N" and "D" of the flag semaphore, standing for "nuclear disarmament".

Read more wikipedia.org

via reddit.com

wJKY TIL When Perelman solved the most important problem in topology he was awarded the Fields Medal and Millennium Prize of one million dollars. He declined both saying: “The main reason is my disagreement with the organized mathematical community. I don’t like their decisions, I consider them unjust.”
Zra4 TIL that the “Great Pyramid” was constructed using approx. 2.3 million stones, each weighing between 2.5-15 tons. In order to finish the “Great Pyramid” in 23 years, the workers would have to set a block every 2.5 minutes, every day of the week for 23 years using no wheels, pulleys or work animals.
DQELP TIL that there is a type of cloud called "Morning Glory clouds" that can create rolling waves in the sky, stretching for thousands of kilometers! These rare clouds appear as a rolling tube of cloud that can move at speeds of up to 60 km/h, and can even create mini-tornadoes!
LQk4m TIL that people who attempted suicide at a young age are seven times more likely to die of a heart attack before age 40
XAp8 TIL One of Bill Clinton’s first jobs out of law school was working for the Dallas office of the 1972 George McGovern Campaign. He worked with Ron Kirk, Anne Richards, and Steven Spielberg; who went on to become Mayor of Dallas, Governor of Texas, and Steven Spielberg, respectively.