Iron weighs more after it rusts.
68
Hot water can freeze faster than cold water.
181
MIT has developed a camera that captures the speed of light at a trillion frames per second.
20
Most liquid laundry detergents are alive with living organisms that help to break down stains!
88
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
A single speck of dust is half way in size between a subatomic particle and the Earth.
15
Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65
A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7