https://imagine.gsfc.nasa.gov/science/toolbox/history_multiwavelength1.html

How do you discover light that your eyes can't see? Serendipity. In the year 1800, Sir William Herschel was exploring the question of how much heat was ...

https://en.wikipedia.org/wiki/Electromagnetic_spectrum

The first discovery of electromagnetic radiation other than visible light came in 1800, when William Herschel discovered ...

https://en.wikipedia.org/wiki/Heinrich_Hertz

Heinrich Rudolf Hertz was a German physicist who first conclusively proved the existence of the electromagnetic waves theorized by James Clerk Maxwell's ...

http://www.spectroscopyonline.com/electromagnetic-spectrum-history

Mar 1, 2007 ... David Ball discusses how the electromagnetic spectrum was originally mapped out and what this means for spectroscopy.

http://www.scienceclarified.com/everyday/Real-Life-Chemistry-Vol-5/Electromagnetic-Spectrum.html

In the meantime, however, Hertz's discovery of electromagnetic waves .... The range of wavelengths found in the electromagnetic spectrum is from about 108 ...

http://coolcosmos.ipac.caltech.edu/cosmic_classroom/cosmic_reference/emspec.html

Electromagnetic Spectrum. When we look at the world around us we are seeing visible light waves (or visible radiation). However, there are many other forms of ...

https://earthsky.org/space/what-is-the-electromagnetic-spectrum

Jun 5, 2017 ... The electromagnetic spectrum is all the wavelengths of light and reveals an otherwise invisible universe.

https://www.explainthatstuff.com/electromagnetic-spectrum.html

May 7, 2018 ... All together, this energy is called the electromagnetic spectrum. Let's take a .... Who discovered the electromagnetic spectrum? James Clerk ...

http://hubblesite.org/reference_desk/faq/answer.php.id=70&cat=light

The electromagnetic spectrum consists of all the different wavelengths of ... Radio wavelengths are found everywhere: in the background radiation of the ...

http://alfresco.ubm-us.net/alfresco_images/pharma/2014/08/21/32f98d89-422d-4e07-af11-0211ecfc26e8/article-411659.pdf

Aug 21, 2014 ... Spectroscopists should understand that all regions of the electromagnetic spectrum are used in some .... Convinced that he had discovered a.