Visible spectrum - Wikipedia, the free encyclopedia
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The visible spectrum is the portion of the electromagnetic spectrum that is visible to (can be detected by) the human eye. Electromagnetic radiation in this range of wavelengths is called visible l...
en.wikipedia.org/wiki/Visible_spectrum
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Color - Wikipedia, the free encyclopedia
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Color or colour (see spelling differences) is the visual perceptual property corresponding in humans to the categories called red , yellow , blue and others. Color derives from the spectrum o...
en.wikipedia.org/wiki/Color
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Approximate wavelength (in vacuum) and frequency ranges for the various colors ... The white light is a mixture of the colors of the visible spectra. ... Wavelength = Speed of light in vacuum / Frequency.
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www.usbyte.com/common/approximate_wavelength.htm
www.usbyte.com/common/approximate_wavelength.htm
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This study suggests that the circadian system in mice is responsive to long wavelength red light. The result is surprising because recent studies suggest that melanopsin, in combination with the classical rod and cone photoreceptors, account for the transduction of photic information to the circadian system.
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www.jcircadianrhythms.com/content/3/1/8
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however, spectral sensitivity of photoreceptors in mice suggests little or no response to red light. Thus, we decided to test the following hypotheses: dim red light illumination triggered by activity (LEDfb) increases the circadian period of mice compared to constant dark (DD);
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www.jcircadianrhythms.com/content/3/1/8/abstract
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Hofstetter JR, Hofstetter AR, Hughes AM, Mayeda AR; ... Skip to main content ... J Circadian Rhythms...
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www.biomedcentral.com/search/citedby/pmc/15927074
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Visible light waves are the only electromagnetic waves we can see. We see these waves as the colors of the rainbow. Each color has a different wavelength. Red has the longest wavelength and violet has the shortest wavelength.
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science.hq.nasa.gov/kids/imagers/ems/visible.html
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The wavelength, usually represented by the Greek letter lambda: , is the speed of light divided by the frequency: c/ . The wavelength of red light is about 700 nm, while blue light's wavelength is roughly 400 nm (depending on the shades of red and blue, of course).
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www.astro.toronto.edu/~ast251/notes/light.html
www.astro.toronto.edu/~ast251/notes/light.html
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Thus, because blue light has a higher absorbance by plant photosynthetic pigments and has a higher energy wavelength than red light, we predicted that juniper needles placed in blue light would photosynthesize faster than juniper needles placed in red light.
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spot.colorado.edu/~basey/bluer.htm
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