0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
Optical illusions occur when what the eyes see conflicts with what the brain expects.
75
Scientists concluded that the chicken came first, not the egg, because the protein which makes the egg shells is only produced by hens.
11
Each day is longer than the previous on by 0.00000002 seconds which is 13 seconds each century!
116
The average home creates more pollution than does the average car.
33
One 75-watt bulb gives more light than three 25-watt bulbs.
57
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118