› added 9 years ago

76

TIL astronauts vote from space

Read more wikipedia.org

via reddit.com

KYGvQ TIL there are more than 10 states of matter including time crystals
RrZj TIL that gold gets its color from special relativity. Relativistic contraction shrinks the gap between the s and d orbitals, allowing gold to absorb blue instead of ultraviolet. If not for relativity, gold would appear more silver in color.
Onme TIL Bats represent 20% of all mammals
4kVVg TIL that mosquitos don't feed on blood as their daily source of food; they actually consume nectar. Female mosquitos only require blood as a source of protein to develop their eggs.
epAE TIL in 1910, Norman Angell (a future Nobel Price Peace Winner) published a book that propagated the view that Europe had become so economically interlaced that future war was impossible.