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Tinea versicolor fluorescence under Wood's lamp. Tinea versicolor may be diagnosed by a potassium hydroxide (KOH) preparation and lesions may fluoresce copper-orange when exposed to Wood's lamp (UV-A light). [15] The differential diagnosis for tinea versicolor infection includes: [citation needed] Progressive macular hypomelanosis; Pityriasis alba
However, a simple side-room investigation with a Wood's lamp is additionally useful in diagnosing erythrasma. [4] The ultraviolet light of a Wood's lamp causes the organism to fluoresce a characteristic coral red color, differentiating it from other skin conditions such as tinea versicolor , which may fluoresce a copper-orange color. [ 5 ]
The "lamp looks weird" trend originated from an old Reddit post by an anonymous user who experienced a lifetime of memories in a span of a few moments after sustaining a head injury.. In the story ...
A blacklight, also called a UV-A light, Wood's lamp, or ultraviolet light, is a lamp that emits long-wave ultraviolet light and very little visible light. [ 1 ] [ 2 ] [ 3 ] One type of lamp has a violet filter material, either on the bulb or in a separate glass filter in the lamp housing, which blocks most visible light and allows through UV ...
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Leaf variegation with white spots may serve as camouflage in forest understory plants, where there is a dappled background; leaf mottling is correlated with closed habitats. Disruptive camouflage would have a clear evolutionary advantage in plants: they would tend to escape from being eaten by herbivores .
Street Light (also known as The Street Light: Study of Light and Street Lamp (Suffering of a Street Lamp) [3]) (Italian: Lampada ad arco) is a painting by Italian Futurist painter Giacomo Balla, dated 1909, depicting an electric street lamp casting a glow that outshines the crescent moon.
Araneus quadratus, the four-spot orb-weaver, is a common orb-weaver spider found in Europe and Central Asia, and as far as the Kamchatka Peninsula and Japan. [1] Females can reach 17 mm in length, especially when gravid, with males around half that.