Scientists in Germany have developed a candy that doesn't cause cavities.
11
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17
Aluminum used to be more valuable than gold!
84
No matter how cold it gets, gasoline will not freeze.
107
Hot water can freeze faster than cold water.
181