Background Information


While researching we discovered new facts that we didn't know. As you know, water is around 800 times more dense than air and as soon as light interacts with it can cause a loss of light, colour changes, diffusion, loss of contrast and other effects. A picture taht is taken at a one meter distance in the water is almost equivilant to the same picture taken out of water at an 800metre distance. The shape of the water has a big impact on the way that light passes through it. Depending on the shape of the water, the light forms crinkle patterns or becomes diffused randomly in all directions. Light will not only travel through the water but reflects off of it too. This affects the way that light travels through water because different amounts and shapes of water are changed, which can make the light travel better or worse in the water. The amount of light shown through a tube also will affect it.

The problems that usually occur with light under water, happens to do with the distance travelled. First, the red colours disappear, then the oranges, yellows and then the greens and purples. This colour distortion, is very similar to that caused by clouds when taking photographs.



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