› added 5 years ago

148

TIL the Gladiator spider does not have Irises, but rather large photosensitive membranes. Consequently, it's eyes are destroyed every day at dawn and must be rebuilt every night. However, this adaption has made it better than cats or owls for night hunts

Read more wikipedia.org

via reddit.com

OpgX TIL IBM sold a smartphone with a touchscreen display input that could send emails and run third party apps in 1994
O9yY TIL that the London Underground has its own implementation of the KERS (Kinetic Energy Recovery System), where the platforms are actually uphill from the surrounding track, so that the Kinetic Energy is turned into Gravitational Potential Energy, and recovered when the train leaves the station.
R7G58 TIL Pythagoras didn't discover the Pythagorean theorem, and that Ancient Egyptians, Babylonians, and Indians all knew about it before him
5YYmP TIL A World War II veteran reunited with his wartime girlfriend after losing contact for 72 years
gMWZ4 TIl that in 2012, a german radio DJ locked himself in the studio and played Wham‘s Last Christmas 14 consecutive times before his coworkers managed to break down the door.