Sound travels about 4 times faster in water than in air.
408
If the chemical sodium is dropped into water it will immediately and violently explode.
67
One gallon of used motor oil can ruin approximately one million gallons of fresh water!
71
MIT has developed a camera that captures the speed of light at a trillion frames per second.
20
Pure water (H2O) does not conduct electricity on its own.
46
Sound at the right vibration can bore holes through a solid object.
134
Neanderthal man had a brain capacity 100cc larger than modern man's.
50
Scientists have developed a microparticle filled with oxygen that can be injected into the blood stream, enabling us to live without breathing.
21