0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
Research indicates that plants grow healthier when they are stroked.
173
The bark of an older redwood tree is fireproof.
65
Iron weighs more after it rusts.
16
4.5 pounds of sunlight strike the Earth each day.
27
The storage capacity of human brain exceeds 4 Terrabytes.
140
Pumice is the only rock that floats on water.
14
