One kilogram of butter stores as much energy between its atoms as the same quantity of TNT.
Men are six times more likely to be struck by lightning than women.
The Moon is gradually moving away from the Earth and the tides are to blame. Every year, the Moon moves a further 3.82cm from the Earth.
Gold leaf is pure gold, but you can cover large areas with it very cheaply because it is very thin. Gold leaf is less than 0.00008 millimetres thick – which is only about 300 atoms thick.
Every rainbow is unique – each rainbow is formed from light hitting your eye at a very precise angle. Someone standing next to you will see light coming from a slightly different angle than you and therefore see a different rainbow.
A bolt of lightning contains enough energy to toast 160,000 pieces of bread. Unfortunately the bolt only takes 1/10,000 of a second – so turning the bread over might prove difficult.
If 10 kilograms of matter spontaneously turned into energy there would be enough energy to power a 100 Watt light bulb for 300 million years – a harrowing thought for all weight watchers.