› added 7 years ago

125

TIL that the infinity sign is also called the “lemniscate”

Read more wikipedia.org

via ift.tt

kpO5 TIL that, in 200 BCE, Eratosthenes measured the Earth’s circumference to an accuracy of 98.4% by measuring the angle of the sun in two different cities
lo7QB TIL Antarctica is governed by a treaty of over 50 countries banning all mining, pollution, colonization, or claims from any one country. Only scientific exploration is permitted and visitors must take every trace of themselves with them when they leave.
a8DyN TIL Stepwells are wells or ponds with a long corridor of steps that descend to the water level and were created to cope with seasonal fluctuations in water availability in South Asia.
69WvJ TIL Wilt Chamberlain is the reason players have to stay behind the foul line when shooting a free throw. While at KU, thanks to his 7’ height, 7’8” wingspan, and 50” vertical, he would start from top of the key, leap before the foul line, and dunk the ball before he touched the ground in the lane.
Kpe4 TIL there’s a mental illness called Cotard Delusion in which the affected person holds the delusional belief that they are already dead, putrefying or don’t exist.