.. Jalbum 8.6 <div class="fotopedia_widget_dark_unframed" id="fotopedia_widget" style="width: 600px"><script src="http://widgets.fotopedia.com/albums/FdDVe4lcZog/entries/yJ7G1wvgFw8/widget/width/600/skin/dark_unframed" type="text/javascript"> </script><p><a href="http://www.fotopedia.com/albums/FdDVe4lcZog/entries/yJ7G1wvgFw8">Optics</a> on <a href="http://www.fotopedia.com">Fotopedia</a></p></div> <blockquote> Optics is the study of the behavior and properties of light including its interactions with matter and its detection by instruments. Optics usually describes the behavior of visible, ultraviolet, and infrared light; however because light is an electromagnetic wave, similar phenomena occur in X-rays, microwaves, radio waves, and other forms of electromagnetic radiation and analogous phenomena occur with charged particle beams. Since the discovery by James Clerk Maxwell that light is electromagnetic radiation, optics has largely been regarded in theoretical physics as a sub-field of electromagnetism. (Wikipedia) </blockquote>