At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
The only letter not appearing on the Periodic Table is the letter "J".
180
Scientists aren't sure what color dinosaurs were.
312
Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65
In the 1950s, the US government placed beer next to an atomic bomb blast to determine if it was still drinkable. The result: in the event of a nuclear war, beer is safe to drink!
16
If the chemical sodium is dropped into water it will immediately and violently explode.
67
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79