› added 6 years ago

61

TIL the modern polo shirt was designed so the collar would intentionally be popped, preventing the sun from burning tennis players' necks.

Read more wikipedia.org

via reddit.com

x6JdD TIL Only 17-25% of people that fall overboard on a cruise ship are ever rescued
EggAo TIL that a single engineer in the control room of NASA prevented the astronauts of Apollo 12 from aborting the mission seconds after launch. "Set SCE to AUX", said John Aaron which saved the entire mission.
VjJk TIL indigenous peoples in Mexico and California use base-8 number systems because they count using the spaces between their fingers rather than the fingers themselves.
9YX0p TIL that there are photosynthesizing animals - and they are already dying out :(
N75PE TIL: The average person can see around 1 million colors but tetrachromats, people with a fourth cone, can perceive around 100 million