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<p>[QUOTE=&quot;RickieB, post: 489635, member: 2486&quot;]Cloud...</p><p><br /></p><p>you are correct..it is a matter of degree..</p><p><br /></p><p>The visible light spectrum is the section of the electromagnetic radiation spectrum that is visible to the human eye. It ranges in wavelength from approximately 400 nm (4 x 10-7 m) to 700 nm (7 x 10-7 m). It is also known as the optical spectrum of light. </p><p><span style="color: Red"><b>The wavelength (which is related to frequency and energy) </b></span>of the light determines the perceived color. The ranges of these different colors are listed in the table below. Some sources vary these ranges pretty drastically, and the boundaries of them are somewhat approximate as they blend into each other. The edges of the visible light spectrum blend into the ultraviolet and infrared levels of radiation. </p><p>Direct from an old Physcis Text...</p><p><br /></p><p>Regards,</p><p>RickieB[/QUOTE]</p><p><br /></p>

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