One third of the electricity produced on earth is used to power electric light bulbs!
75
Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
0
Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65
No matter how cold it gets, gasoline will not freeze.
107
A single speck of dust is half way in size between a subatomic particle and the Earth.
15
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
Your brain is 80% water.
525