0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
3
Hot water can freeze faster than cold water.
181
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
Research indicates that plants grow healthier when they are stroked.
173
The average home creates more pollution than does the average car.
33
The smell of freshly cut grass is actually a plant distress call.
31