A single cup of gasoline, when ignited, has the same explosive power as five sticks of dynamite.
57
German chemists made a replica of a trophy the size of one molecule.
68
The average temperature at 40,000 feet above sea level is -60 F.
56
Sound travels about 4 times faster in water than in air.
408
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
Aluminum used to be more valuable than gold!
84
One ragweed plant can release as many as one billion grains of pollen!
51