0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
Sound travels fifteen times faster through steel than through air.
134
The smell of freshly cut grass is actually a plant distress call.
31
The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
Sound at the right vibration can bore holes through a solid object.
134
Scientists in Germany have developed a candy that doesn't cause cavities.
11
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