Sound travels about 4 times faster in water than in air.
408
The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
Diamonds can be shattered with a hammer.
-104
4.5 pounds of sunlight strike the Earth each day.
27
The banana plant cannot reproduce itself. It can be propagated only by the hand of man.
155
In the 1950s, the US government placed beer next to an atomic bomb blast to determine if it was still drinkable. The result: in the event of a nuclear war, beer is safe to drink!
16
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79