Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
The average home creates more pollution than does the average car.
33
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
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
One ragweed plant can release as many as one billion grains of pollen!
51
There are more atoms in one teaspoon of water than there are teaspoons of water in the Atlantic Ocean.
13
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
If the chemical sodium is dropped into water it will immediately and violently explode.
67