Electromagnetic+Spectrum+&+light

__There are six parts to the Electromagnetic spectrum:__

- Radio: We normally know this as the waves that radio station might produce but it is also produced by things like stars in space.

- Microwaves: astronomers using microwaves learn about the structure of galaxies or they it can found in a everyday house

- Infrared: infrared light is something that can be emitted by the human skin but can only be seen while using night vision

- Visible: visible radiation is emitted by everything and fast moving particles that hit each other also produce visible rays

- Ultraviolet: Stars and hot objects in space like the sun produce ultraviolet light or what is better known as UV

- X-rays: X-rays are known as things doctors use to view your bones but it is also produced by hot gases in space

- Gamma rays: Radioactive and nuclear things produce gamma rays. The whole universe is a gamma-ray generator as it creates gamma radiation in many different ways

A trend that is noticed is that if you travel along the spectrum in the picture below that from going left to right the frequency increases but the wavelength decreases

__There are 7 colours of visible light in the light spectrum__ (__ROY G BIV__) - __R__ed - __O__range - __Y__ellow - __G__reen - __B__lue - __I__ndigo - __V__iolet
 * Light Spectrum:

- White light is formed when all the colours travel together. Colour filters can be used to separate colour individually or rarefaction can be used as a way of seeing all colours of the spectrum separately media type="youtube" key="05S1xXFGpKk" height="345" width="420"