Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
The earth is approx. 6,588,000,000,000,000,000 tons.
175
A ball of glass will bounce higher than a ball made of rubber.
73
There are more atoms in one teaspoon of water than there are teaspoons of water in the Atlantic Ocean.
13
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
A cubic yard of air weighs about 2 pounds at sea level.
31
Aluminum used to be more valuable than gold!
84
