The earth is approx. 6,588,000,000,000,000,000 tons.
175
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
Most dust particles in your house are made from dead skin!
67
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
In the 60s, a scientist gave LSD to dolphins in an attempt to teach them English.
17
One barrel of petroleum holds 42 gallons.
20
Sound travels fifteen times faster through steel than through air.
134