Ultraviolet Light

Some articles on ultraviolet light, ultraviolet, light:

Peppered Moth - Ecology and Life Cycle - Resting Behaviour
... However, birds are capable of seeing ultraviolet light that humans cannot see ... Using an ultraviolet-sensitive video camera, Majerus et al ... showed that typica reflect ultraviolet light in a speckled fashion and are camouflaged against crustose lichens common on branches, both in ultraviolet and human-visible wavelengths ...
List Of Star Wars Species (A–E) - Defel
... They are from a large, high-gravity, seldom-visited world orbiting the ultraviolet supergiant Ka'Dedus ... Af'El has no ozone layer and ultraviolet light passes freely to the surface, while other light wavelengths are blocked by the heavy gases in the planet's atmosphere ... Thus, all life forms on Af'El can only see in ultraviolet light ranges, and are blind to other wavelengths of light ...
Full-spectrum Photography - Basics
... and photographic films can be made to record non-visible ultraviolet (UV) and infrared (IR) radiation ... most photographic lenses are made of glass and will filter out most ultraviolet light ... For example, a standard red #25a can be used to include red light and infrared light together, yielding particularly strong two-toned color images of a reddish ...
Non-ionizing Radiation - Types of Non-ionizing Electromagnetic Radiation - Near Ultraviolet Radiation
... Ultraviolet light can cause burns to skin and cataracts to the eyes ... Ultraviolet is classified into near, medium and far UV according to energy, where near and medium ultraviolet are technically non-ionizing, but where all UV wavelengths can cause ... For example, ultraviolet light, even in the non-ionizing range, can produce free radicals that induce cellular damage, and can be carcinogenic ...
Ultraviolet Light Therapy
... Ultraviolet light therapy or ultraviolet Phototherapy is a form of treatment for certain skin disorders (including atopic skin disorder and vitiligo when used with psoralen to form the ... This treatment is similar to the light from good quality solariums but differs from the mainly UVB ultraviolet band used to treat psoriasis ...

Famous quotes containing the words light and/or ultraviolet:

    Few colors last; with their eternal thirst, time and light suck on them, and they bleach the black doctor’s hat until it’s grey like a dunce’s cap.
    Franz Grillparzer (1791–1872)

    As if the musicians did not so much play the little phrase as execute the rites required by it to appear, and they proceeded to the necessary incantations to obtain and prolong for a few instants the miracle of its evocation, Swann, who could no more see the phrase than if it belonged to an ultraviolet world ... Swann felt it as a presence, as a protective goddess and a confidante to his love, who to arrive to him ... had clothed the disguise of this sonorous appearance.
    Marcel Proust (1871–1922)