At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
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
Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44
The storage capacity of human brain exceeds 4 Terrabytes.
140
A ball of glass will bounce higher than a ball made of rubber.
73
Balsa wood is classified as a hard wood!
41