Iron weighs more after it rusts.
68
Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
3
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
No matter how cold it gets, gasoline will not freeze.
107
One third of the electricity produced on earth is used to power electric light bulbs!
75
A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7
A cubic yard of air weighs about 2 pounds at sea level.
31
Out of all the senses, smell is most closely linked to memory.
146