› added 12 years ago

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TIL that there is a “sonic boom” for light, when something travels faster than the speed of light moving through a medium (so it’s slowed down). The result is a brilliant blue glow.

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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.
5VrZ8 TIL Stephen A. Smith has been a recurring character on the soap opera General Hospital since 2016. His character's name is "Brick." Smith is a longtime fan of the show, as his older sisters watched it every day growing up.
loWVV TIL: Squirrels (unlike most other mammals) can survive impacts at their terminal velocity. Which means no matter what height you drop a squirrel from, it will probably survive.
Np0b TIL USA recruited 1600 Nazi scientists and created false employment histories and expunged Nazi Party memberships and regime affiliations from the public record
XEp4E TIL one of the moon rocks brought back to Earth from the Apollo 14 mission, was actually a rock formed on Earth 4 billion years ago, making it Earth's oldest rock.