Aluminum used to be more valuable than gold!
84
A cesium atom in an atomic clock beats over nine billion times a second.
43
One gallon of used motor oil can ruin approximately one million gallons of fresh water!
71
Pure water (H2O) does not conduct electricity on its own.
46
Some toothpastes and deodorants contain the same chemicals found in antifreeze.
38
Most dust particles in your house come from dead skin.
48
The brain case [of Neanderthals] on the average was more than 13 percent larger than that of the average of modern man
61
Diamonds can be shattered with a hammer.
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