0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
Out of all the senses, smell is most closely linked to memory.
146
Pure water (H2O) does not conduct electricity on its own.
46
The force of a suction cup is calculated using F=AP.
15
Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65