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The Electromagnetic Spectrum: A History
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In all the time I've been doing this column, I've never discussed how the complete electromagnetic spectrum was originally mapped out. So, I'll do it now. Spectroscopists should understand that all regions of the electromagnetic spectrum are used in some form of spectroscopy.
(ProQuest-CSA LLC: ... denotes formulae omitted.)
When a person says the word "light," a listener - even a spectroscopist - usually interprets that as meaning "visible light." That's not unexpected, because throughout most of recorded history the only light that we recognized was light that we could see. However, that ...
Related newspaper, magazine, and trade journal articles from HighBeam Research
(Including press releases, facts, information, and biographies)
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Turning up the light
; ...Melbourne. . THE SYNCHROTRON INTENSE VISIBLE LIGHT AND X-RAYS GENERATED BY SYNCHROTRONS...off flashes of intensely bright visible light, infrared and ultraviolet radiation...than hospital X-rays, and the visible light produced is 10,000 billion times...
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Massive black holes let there be light.(black holes may produce light)(Brief Article)
; ...intense radiation ranging from visible light to X rays. This light, researchers...relatively few quasars seen in visible light, Fabian says. Looking for hidden...Dust absorbs both ultraviolet and visible light and reradiates it as far-infrared...
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Putting a far finer point on visible light.
; Putting a far finer point on visible light By repackaging light as molecular...aperture, and then decay into visible light. It's very hard to force light...researchers to develop improved visible-light microscopes that would have the...
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Seeing the light
; ...this planet, have eyes that are tuned to see visible light? Of course, "visible" light is, by definition, what our eyes see. But it...Most of our sun's radiation is in the form of "visible" light, and our eyes evolved to tune in that range...
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Thermal or Visible Light? THE DEBATE CONTINUES.
; ...the rest of the world has not Visible light technology is holding its own...much demand for both ther mal and visible light technologies in the woridwide...Crawford, Fuji views predictions of visible light plate technology's demise as premature...
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Effects of Visible Light on the Skin[dagger]
; ...of the spectrum. The effects of visible light and infrared radiation have not...is to highlight the effects of visible light on the skin. As a result of advances...have been shown to be exerted by visible light radiation including erythema...
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An alternative 'cure.' (visible-light adhesive curing for assembly)(includes related article on selecting the right curing equipment)
; Before embarking on visible-light curing for assembly, it's important...but advances in chemistry make visible-light curing common. The primary advantage...and UV-C increases surface cure. Visible light can be categorized, with individual...
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Flooding light through tiny holes. (research shows that metal film with microscopic perforations is remarkably transparent to light)(Brief Article)
; ...as an excellent reflector of visible light. A thin, perforated silver...considerably narrower than the light's wavelength. Researchers have...surprisingly large amount of light in certain wavelength ranges...triangular grids. BaThed in light ranging from 200 to 1,200 nm...
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Phototoxic Effect of Visible Light on Porphyromonas gingivalis and Fusobacterium nucleatum: An In Vitro Study¶[dagger]
; ...ABSTRACT The antibacterial effect of visible light irradiation combined with photosensitizers...this was to test the effect of visible light irradiation without photosensitizers...grown on agar were exposed to visible light at wavelengths of 400-500 nm...
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Laminated glazing lets light in, keeps heat out. (Nanotechnology).
; ...have made window panes that allow visible light to pass through while blocking...band, so as not to reduce the visible light transmission significantly while...nm without absorbing too much visible light. The researchers tested La[B.sub...
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