Iron weighs more after it rusts.
16
The average temperature at 40,000 feet above sea level is -60 F.
56
Scientists in Germany have developed a candy that doesn't cause cavities.
11
Neanderthal man had a brain capacity 100cc larger than modern man's.
50
Pumice is the only rock that floats on water.
14
One barrel of petroleum holds 42 gallons.
20
Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
3
Scientists have developed a microparticle filled with oxygen that can be injected into the blood stream, enabling us to live without breathing.
21