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Rainbows
Posted on July 26th, 2010 No commentsThe physicists claim that rainbows are created by light being split into different colours by tiny droplets of water. This is only partially true. If you shine White light into a droplet of water you get White light. If there is an edge between the droplet and the light, or an edge visible through the sphere then you get distorted coloured bands. Coloured light entering a droplet of water is distorted in a similar way that coloured light entering a prism is distorted.
Where are the edges up in the sky to create these colour bands? These are provided by the droplets of water themselves. If you shine White light onto a droplet of water a shadow is formed behind it. The edges of this shadow create thin colour bands (Blue, Red and Yellow) that pass into droplets of water behind it and are distorted and enlarged. After that it becomes complicated as the coloured bands pass through millions of water droplets.
It is easy enough to check this with the use of a couple of brandy glasses filled with water.
7 responses to “Rainbows”
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