There are more than 270 people cryogenically frozen in the hope that one day the technology will exist that can revive them and extend their lives.
13
If you are locked in a completely sealed room, you will die of carbon dioxide poisoning first before you will die of oxygen deprivation.
117
One 75-watt bulb gives more light than three 25-watt bulbs.
57
A single speck of dust is half way in size between a subatomic particle and the Earth.
15
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
Scientists have developed a microparticle filled with oxygen that can be injected into the blood stream, enabling us to live without breathing.
21