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...ult of objects interacting with already-coloured light rather than objects generating the colour themselves. This is known as [[Early life of Isaac Newton#Newton ...ript/transcript.php?storyId=105012144 |episodelink=|url=http://www.npr.org/templates/story/story.php?storyId=105012144 |network=NPR|accessdate=1 August 2014}}</ ...