The Manchineel Tree is so poisonous, rainwater dripping off it’s leaves will burn your skin.
17
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
Sound at the right vibration can bore holes through a solid object.
134
Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17
According to studies, men change their minds two to three times more often than women.
72
Columbia University has developed an artificial tree that passively soaks up carbon dioxide from the air using "leaves" that are 1,000 times more efficient than true leaves that use photosynthesis.
15
The only letter not appearing on the Periodic Table is the letter "J".
180