Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
Sound travels about 4 times faster in water than in air.
408
The sun is 330,330 times larger than the earth.
75
A single cup of gasoline, when ignited, has the same explosive power as five sticks of dynamite.
57
One third of the electricity produced on earth is used to power electric light bulbs!
75
Cold water weighs more than hot water.
93
4.5 pounds of sunlight strike the Earth each day.
27