One of our all-time favorite posts is this post about the EM Spectrum infographic. And from time to time, we repost it here on our social media sites. Nearly every high school physics course has a unit on the topic of light. And a central part of that unit is the behavior of light as a wave - an electromagnetic wave. A centerpiece of this discussion is usually a graphic showing the electromagnetic (EM) spectrum. The entire spectrum is divided into regions with popular names such as X-ray region, ultraviolet region, visible light region, infrared region, microwave region, etc. The most elaborate representation of the spectrum can be found on Flickr at
The infographic portrays the various regions, their wavelengths and frequencies, the characteristics and uses, the source and origin, and so much more. There is enough physics in this graphic to fuel several weeks’ worth of studies.
Finally, if you would like to see the infographic come alive, visit the interactive version of it at the Physics Interactives section of our website.
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