› added 2 years ago

314

TIL ice ages begin when continents block warm water flow from the equator to the poles, forming ice sheets that increase Earth's reflectivity and reduce solar radiation absorption. This cools the atmosphere, causing ice sheets to grow, which further increases reflectivity in a positive feedback loop

Read more manoa.hawaii.edu

via reddit.com

BrPvb TIL that at least 3 astronauts in the Challenger disaster were conscious till the cabin hit the water approximately 3 mins after the breakup. 2 astronauts activated their air providers, while one of them activated it for the pilot Michael J. Smith, who was trying to restore power by moving switches.
lo8B7 TIL not only do 1 in every 10 people have a tiny second spleen, called an accessory spleen, but also that if the main spleen is removed, the tiny second spleen can grow to function as a new spleen.
WkPvX TIL that Apple actually license the 'iOS' trademark from Cisco. Cisco had used it for at least 10 years prior to Apple for their operating system.
G0eN TIL the first woman millionaire in the US was Sara Breedlove. In the 1890’s she made her fortune by selling hair products designed and marketed for black women.
0d9Bv TIL that the Greenlandic Inuit worked iron both from meteorites and lava flows that formed native iron metal.