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
Scientists concluded that the chicken came first, not the egg, because the protein which makes the egg shells is only produced by hens.
11
A cesium atom in an atomic clock beats over nine billion times a second.
43
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
Sound travels about 4 times faster in water than in air.
408
Liquid TIDE laundry detergent glows under a blacklight.
96
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79