Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65
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
Scientists are now able to grow 'beating' heart tissue in a lab!
162
One cubic foot of gold weighs more than 1,200 pounds!
78
The force of a suction cup is calculated using F=AP.
15
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
Sound travels fifteen times faster through steel than through air.
134
The Earth's atmosphere weighs about 5.5 quadrillion tons.
108