Mr. Capra's Educational Pursuits in Antarctica

Fuchs Foundation Antarctic Expedition 2010

What on Earth is Ultraviolet Radiation?

The first thing we must understand is that Ultraviolet radiation is a type of light.

What? Really? You might ask.

The Visible Spectrum

The thing is, LIGHT, as science knows it, goes way beyond what your eyes can see. Humans have developed eyes that can sense what is known as Visible Light, which is basically all the colour shades from Red to Violet that we can see. 

 Wait, wait…how about white ? Or black? Aren’t they colours too?

Well, putting simply and without going into detail white light is the combination of all those colour shades you know and pure black is simply the absence of colour (therefore, not a colour). Click here for further details. 

Anyway, Ultraviolet light is part of what we know as the Electromagnetic Spectrum, of which Visible light is also a part of. The electromagnetic  spectrum is just a name that scientists give to the types of radiation when they want to talk about them as a group. Radiation is energy that can travel in space and spreads out as it goes.

The Electromagnetic Spectrum

The Electromagnetic Spectrum

Ultraviolet Radiation, on the other hand, has a higher frequency (and a smaller wavelength) than visible light, so it has more energy. The higher the frequency, the more energy it has and therefore, the more dangerous it can be.

 uv2 

 The Anatomy of a wave

 

 Frequency is the number of waves that pass through a certain point in one second

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[...] What on Earth is Ultraviolet Radiation? [...]


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