One 75-watt bulb gives more light than three 25-watt bulbs.
57
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
Neanderthal man had a brain capacity 100cc larger than modern man's.
50
Each day, up to 150 species of life become extinct.
-23
Most dust particles in your house come from dead skin.
48
The smell of freshly cut grass is actually a plant distress call.
31