A cesium atom in an atomic clock beats over nine billion times a second.
43
Hot water can freeze faster than cold water.
181
The smell of freshly cut grass is actually a plant distress call.
31
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
The earth is approx. 6,588,000,000,000,000,000 tons.
175
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
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