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Electromagnetic radiation
'''Electromagnetic radiation''' comes in many different types, although the differences between them are quantitative rather than qualitative.  This teaching aid lists the different types that are generally recognised.

Electromagnetic radiation is an Electromagnetic oscillation wave that travels at speed of visible light carries[[Quantum]]'s energy called [[Photon]]

==Electromagnetic oscillation wave==
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There are many bands within these, which are even vaguer and more prone to overlap.  Each band is discussed in more detail below.  The limits given are rough, so exact consistency between wavelength, frequency and photon energy cannot be expected.

==Frequency 
spectrum bands==
===Radio rays===
{{main|Radiation/Radios|Radio radiation|Radios}}
The existence of '''radio waves''' was predicted by James Clerk Maxwell in 1864. Their properties were investigated by Heinrich Hertz (after whom the hertz is named) in 1885-9.

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There are several terms used.

==External links==
[[Category:Physics]]
[[Category:Electromagnetism]]
[[Category:Radiation]]
[[Category:Resources last modified in August 2016]]