A cesium atom in an atomic clock beats over nine billion times a second.
43
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
Pure water (H2O) does not conduct electricity on its own.
46
MIT has developed a camera that captures the speed of light at a trillion frames per second.
20
Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44
Most dust particles in your house come from dead skin.
48
The smell of freshly cut grass is actually a plant distress call.
31
A single speck of dust is half way in size between a subatomic particle and the Earth.
15