Diamonds can be shattered with a hammer.
-104
The brain case [of Neanderthals] on the average was more than 13 percent larger than that of the average of modern man
61
A cesium atom in an atomic clock beats over nine billion times a second.
43
If you are locked in a completely sealed room, you will die of carbon dioxide poisoning first before you will die of oxygen deprivation.
117
Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
57
The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
The average temperature at 40,000 feet above sea level is -60 F.
56
The bark of an older redwood tree is fireproof.
65