More than 10% of the world's salt is used to de-ice American roads.
54
Ice isn't slippery. What makes people and things slip on ice is water. A thin layer of ice melts when pressure is applied to it and it is this wet layer on top of the ice that is slippery.
153
It has been calculated that every 2 minutes, we take more pictures than all of humanity in the 19th century.
13
Ninety-nine percent of pumpkins sold in the United States are for the sole purpose of decoration.
55
There are more telephones than people in Washington, D.C.
121
A typical lead pencil can draw a line that is 35 miles long.
158
In many countries, urine was used as a detergent for washing.
17
You can start a fire with ice.
367