Brass doorknobs automatically disinfect themselves in about 8 hours.
18
The offspring of two sets of identical twins are legally cousins but genetically siblings.
63
Chocolate is associated with the release of serotonin, the hormone that makes you feel relaxed, calm, and happy.
183
Some monks can increase their body temperature so much they can dry soaking sheets in a freezing room!
31
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
It takes at least eight bees all their life to make one single teaspoonful of honey.
3
