Iron weighs more after it rusts.
16
The earth is approx. 6,588,000,000,000,000,000 tons.
175
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
The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
3
The brain case [of Neanderthals] on the average was more than 13 percent larger than that of the average of modern man
61
Scientists in Germany have developed a candy that doesn't cause cavities.
11
There are more atoms in one teaspoon of water than there are teaspoons of water in the Atlantic Ocean.
13