A cesium atom in an atomic clock beats over nine billion times a second.
43
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
The banana plant cannot reproduce itself. It can be propagated only by the hand of man.
155
Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44
In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
A 'jiffy' is an actual unit of time for 1/100th of a second!
66
The average temperature at 40,000 feet above sea level is -60 F.
56