In many countries, urine was used as a detergent for washing.
17
There are more nerve cells in the human brain than there are stars in the Milky Way.
349
In Tokyo, a bicycle is faster than a car for most trips of less than 50 minutes!
58
In 21 U.S. states, WALMART is the single largest employer.
13
If you counted 24 hours a day, it would take 31,688 years to reach one trillion!
44
If you dropped an aerodynamic object (such as a bullet) from the Empire State Building, you could kill someone.
132
Only humans shed emotional tears.
331
The weight of air in a milk glass is about the same as the weight of one aspirin tablet.
63