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
Indoor pollution is 10 times more toxic than outdoor pollution.
62
If you blowtorch Pepto-Bismol, you would get a hunk of metal.
114
Scientists aren't sure what color dinosaurs were.
312
A ball of glass will bounce higher than a ball made of rubber.
73
A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7
Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
57
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310