Wednesday, 11 January 2012

Invisible Light

So I have a list of 'life questions.' Basically just a list of things that I have wondered, and asked a few people about, but haven't come to any firm conclusions yet... This past week, one of these life questions was answered. I've always wondered if there were colours that we can't see with the naked human eye... colours outside the visible light spectrum. And the answer is YES, there are!

Ultra Violet rays for example, have a very short wavelegnth and are extremely blue, bluer than any of the blues we have ever seen! Although humans can't see UV light, apparently some insects, like bumblebees actually can! Isn't that a crazy concept? Basically scientific proof for invisibility!

This is demonstrated in the layers of the sun. The layer that we can see is called the Photosphere, but there are two other layers, the Chromosphere and the Corona that we cannot see without special equipment because the light from the photosphere overpowers them. In the summertime it is the UV rays that burn us, but we cannot see these rays. Below is a picture of the sun taken at extreme UV wavelegnth!


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