The bark of an older redwood tree is fireproof.
65
MIT has developed a camera that captures the speed of light at a trillion frames per second.
20
The sun is 330,330 times larger than the earth.
75
Nylon is made from coal and petroleum.
42
Neanderthal man had a brain capacity 100cc larger than modern man's.
50
A single speck of dust is half way in size between a subatomic particle and the Earth.
15
The Earth's atmosphere weighs about 5.5 quadrillion tons.
108