The earth is approx. 6,588,000,000,000,000,000 tons.
175
The storage capacity of human brain exceeds 4 Terrabytes.
140
For every gallon of sea water, you get more than a quarter pound of salt.
45
Pure water (H2O) does not conduct electricity on its own.
46
One cubic foot of gold weighs more than 1,200 pounds!
78
Scientists aren't sure what color dinosaurs were.
312
Sound travels fifteen times faster through steel than through air.
134
