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Astro*Dictionary by Michael Erlewine





1 article for "Ritter, Johann Wilhelm"

Ritter, Johann Wilhelm [Astro*Index]

(1776-1810) German physicist.

In 1801, he discovered Ultraviolet Radiation which, although invisible to the eye, could be detected by photographic means.

See also:
♦ Electromagnetic Spectrum



Astro*Index Copyright © 1997 Michael Erlewine