Without energy there would be nothing. There would be no Sun no wind no rivers and no life at all. Energy is everywhere and energy changing from one form to another is behind everything that happens. This intriguing book discovers what energy is and the many ways we use it to improve our lives. Ancient people used energy from fire and developed tools to use energy from their muscles more efficiently. Electricity has been known for about 3 000 years but it wasn't until the steam turbine was invented in 1884 that electricity could be produced on a large scale for use in homes and factories. During the 20th Century energy has become much more easily available causing problems such as air pollution and nuclear waste. Featuring historic scientific apparatus and ground-breaking experiments and inventions Energy is an intriguing look at how energy affects our everyday lives.