Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
18
Pumice is the only rock that floats on water.
14
The weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
51
A single cup of gasoline, when ignited, has the same explosive power as five sticks of dynamite.
57
The earth is approx. 6,588,000,000,000,000,000 tons.
175
Most dust particles in your house are made from dead skin!
67