› added 11 years ago

183

TIL that Earth once had rings like Saturn.

Read more myscienceacademy.org

via reddit.com

Oor4R TIL that the weightless scenes in the movie Apollo 13 were real. The space capsule set was built inside a cargo plane that would freefall for about 20 seconds at a time, simulating being in orbit. The plane would then climb back up to film the next scene.
LmbQ TIL the standard “headphone jack” connector has been roughly the same since 1878
LQbYd TIL that the integral symbol is NOT part of the greek alphabet unlike many math symbols like pi, summation, lambda, etc
b7nj TIL that Led Zeppelin was originally called “Lead Zeppelin” but they dropped the “a” because they didn’t want people to pronounce it “Leed Zeppelin”
nelWr TIL Tinder, OKCupid, and Match.com are all owned by the same company