› added 11 years ago

145

TIL almost 50% of all Americans live in the Eastern Time Zone

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via reddit.com

XEvDr TIL: Theres an extremely rare condition humans can have called Hematidrosis which causes a person to sweat blood, normally under extreme physical or emotional stress.
GYBLG TIL a mathematician tried for 7 years to prove that one cannot untie a knot on a 4-sphere. Then one day he decided to try to prove the opposite, and he succeeded in a few hours.
gMleb TIL in the 1988 box-office bomb "Mac and Me", the wheelchair-bound lead child character was played by a real wheelchair-bound actor with spina bifida. In real life, when people asked why he was in a wheelchair, the 12-year-old would reply, "Vietnam."
b94Np TIL that the children of identical twins are genetically siblings rather than cousins. This is because they share 25% of their DNA. Full siblings share 50% of their DNA, half-siblings share 25%, and cousins share 12.5%. Thus, they are the genetic equivalent of half-siblings.
NA66 TIL that, differently from animals, there’s no known general and reliable tranquilizer for humans, meaning that tranquilizer guns in movies are likely to either kill the target or be ineffective.