Sound travels fifteen times faster through steel than through air.
134
Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65
Pumice is the only rock that floats on water.
14
The smell of freshly cut grass is actually a plant distress call.
31
The sun is 330,330 times larger than the earth.
75
MIT has developed a camera that captures the speed of light at a trillion frames per second.
20
One barrel of petroleum holds 42 gallons.
20
Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
3