Energy and light

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This book begins by considering the way in which energy is transferred from one object to another and transformed from one type to another, thus enabling all the movement observed on Earth and in the wider Solar System, from the orbiting of the planets, to continents drifting, to cheetahs chasing their prey and insects scurrying about in the undergrowth. The attention is turned in the later chapters to Energy from the Sun, in the form of light and other radiation, and the importance of the Sun since it is the energy source for almost all life on Earth.