Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65
Diamonds can be shattered with a hammer.
-104
Scientists are now able to grow 'beating' heart tissue in a lab!
162
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
Sound travels about 4 times faster in water than in air.
408
Sound at the right vibration can bore holes through a solid object.
134
A single cup of gasoline, when ignited, has the same explosive power as five sticks of dynamite.
57