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Dictionary » L » Light LightDefinition noun (1) (physics) The electromagnetic radiation of any wavelength, or sometimes only referring to a range of wavelength (about 400-700 nm) visible to an unaided human eye. (2) A source of illumination, e.g. a lamp or an electric lighting fixture. (3) The sensation of perceiving light.
To illuminate or to provide illumination; to ignite; to give out or fill with light.
(1) Characterized by light (illumination). (2) Not dark in color; fair. (3) Low in content or amount, e.g. low in sugar or starch. (4) Applying slight force or pressure.
Certain organisms are capable of producing and emitting visible radiation. Examples of such organisms are fireflies, glow worms, Jack O'Lantern mushroom, ghost fungus, Anglerfish, Aequorea victoria (a jellyfish), dinoflagellates, etc.
Synonyms: See also: wavelength Related terms: ![]()
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Results from our forumRe: growing bacteria in petri dishes... box, make hole in it so that a small electric bulb can fit into it. Wrap it with black paper. Keep the plates inverted under wooden box and on the light... and off that after half an hour .... try to maintain it for long as 5hours with a intermediate half an hour gap. I tried it in my lab as we ...
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chemistry... all you need is restricted rotation about some bond isomerization may occur at diverse conditions, e.g. organic solvent, high energy (light), radicals, enzymes
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Re: Device for ratiometric fluorescence measurement... colorimeter. You'd need two emission filters and one or two excitation filters, arranged around your cuvette so that the excitation and emission light paths intersect at a 90 degree angle in the sample. Of course, you'd need an excitation source and either two photodetectors or a means of manually ...
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Re: UV Effect on cell pigmentation (melanocytes)... the intensity of vu rays as the pigment melanin is purely designed for protection from uv rays is is deffinetey effected by the intensity of the light
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Re: UV Reflective Staining... My doctor said it was nothing to be concerned about. I am still concerned. My nails hava never glowed before, and have been exposed to this light on numerous occasions throughout my life. This is new. I think I attached a photo. Any feedback would be gratefully received. xx 20130119_163255.jpg
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