When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
A single speck of dust is half way in size between a subatomic particle and the Earth.
15
Each day, up to 150 species of life become extinct.
-23
Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17
A ball of glass will bounce higher than a ball made of rubber.
73
Scientists aren't sure what color dinosaurs were.
312
Liquid TIDE laundry detergent glows under a blacklight.
96
Rafflesia Arnoldii is the largest flower in the world and can grow as big as an umbrella.
42