A picture of the electromagnetic spectrum can be seen at:
<a target="_blank" href="http://mynasadata.larc.nasa.gov/images/EM_Spectrum3-new.jpg">http://mynasadata.larc.nasa.gov/images/EM_Spectrum3-new.jpg</a>
A picture of the electromagnetic spectrum can be seen at:
<a target="_blank" href="http://mynasadata.larc.nasa.gov/images/EM_Spectrum3-new.jpg">http://mynasadata.larc.nasa.gov/images/EM_Spectrum3-new.jpg</a>