The smell of freshly cut grass is actually a plant distress call.
31
Neanderthal man had a brain capacity 100cc larger than modern man's.
50
MIT has developed a camera that captures the speed of light at a trillion frames per second.
20
Your brain is 80% water.
525
One third of the electricity produced on earth is used to power electric light bulbs!
75
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
Scientists have developed a microparticle filled with oxygen that can be injected into the blood stream, enabling us to live without breathing.
21