Title Description:
There is more to light than just the rainbow of colour that we see around u...There is more to light than just the rainbow of colour that we see around us. All of the colours and images we see are just a small part of one continuous series of waves called the electromagnetic spectrum. We owe our use of the word 'spectrum', which means 'appearance' in Latin, and our earliest knowledge about it to Isaac Newton, who published a well-known book called 'Optiks' in 1671. We will hear more about Newton when we look at the visible part of the spectrum later. Since Newton's day, we have expanded our knowledge and understanding of the spectrum to include everything from gamma radiation to radio waves, and so have split this title up accordingly.
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