Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
At 15 years old, Jack Andraka invented a method of diagnosing pancreatic cancer, thus helping to save the lives of millions of people around the world. It is 168 times faster, 26,000 times cheaper, 400 times more sensitive, and has a 99% success rate.
15
The gas that gives rotten eggs their distinctive foul smell may slow ageing and block damaging chemical reactions inside cells, according to scientists in China.
5
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
There are more atoms in one teaspoon of water than there are teaspoons of water in the Atlantic Ocean.
13
If the chemical sodium is dropped into water it will immediately and violently explode.
67
Scientists are now able to grow 'beating' heart tissue in a lab!
162
Most dust particles in your house come from dead skin.
48