Iron weighs more after it rusts.
68
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
The sun is 330,330 times larger than the earth.
75
Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44
There are more than 270 people cryogenically frozen in the hope that one day the technology will exist that can revive them and extend their lives.
13
Pumice is the only rock that floats on water.
14
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310