Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
A cubic yard of air weighs about 2 pounds at sea level.
31
There are more than 270 people cryogenically frozen in the hope that one day the technology will exist that can revive them and extend their lives.
13
Sound travels fifteen times faster through steel than through air.
134
4.5 pounds of sunlight strike the Earth each day.
27
Some toothpastes and deodorants contain the same chemicals found in antifreeze.
38
According to studies, men change their minds two to three times more often than women.
72