Sound travels fifteen times faster through steel than through air.
134
The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
Most dust particles in your house come from dead skin.
48
According to scientists, the color of the cup that we're drinking from can alter our perception of the actual taste of the drink.
12
Diamonds can be shattered with a hammer.
-104
Research indicates that plants grow healthier when they are stroked.
173
Most dust particles in your house are made from dead skin!
67
It takes a photon 170,000 years to travel from the core of the Sun to the surface, but only 8 minutes to travel the rest of the way to Earth.
6