Scientists have developed a microparticle filled with oxygen that can be injected into the blood stream, enabling us to live without breathing.
21
A single speck of dust is half way in size between a subatomic particle and the Earth.
15
Sound travels fifteen times faster through steel than through air.
134
A cubic yard of air weighs about 2 pounds at sea level.
31
German chemists made a replica of a trophy the size of one molecule.
68
One third of the electricity produced on earth is used to power electric light bulbs!
75
If the chemical sodium is dropped into water it will immediately and violently explode.
67