The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
18
German chemists made a replica of a trophy the size of one molecule.
68
Sound travels fifteen times faster through steel than through air.
134
The bark of an older redwood tree is fireproof.
65
Billions of neutrinos pass unnoticed through your body every second.
6
A single speck of dust is half way in size between a subatomic particle and the Earth.
15
The average home creates more pollution than does the average car.
33
One barrel of petroleum holds 42 gallons.
20