0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
Columbia University has developed an artificial tree that passively soaks up carbon dioxide from the air using "leaves" that are 1,000 times more efficient than true leaves that use photosynthesis.
15
Iron weighs more after it rusts.
16
For every gallon of sea water, you get more than a quarter pound of salt.
45
Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
3
Out of all the senses, smell is most closely linked to memory.
146
Scientists concluded that the chicken came first, not the egg, because the protein which makes the egg shells is only produced by hens.
11
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39