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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 ...
As of February 2022, only one isolated black hole has been confirmed, OGLE-2011-BLG-0462, around 5,200 light-years away. [2] The nearest known black hole is Gaia BH1, which was discovered in September 2022 by a team led by Kareem El-Badry. Gaia BH1 is 1,560 light-years away from Earth in the direction of the constellation Ophiuchus. [3]
A cosmic mystery surrounding a black hole some 270 million light-years from the Milky Way is deepening. Now, the black hole has once again demonstrated strange features that teams of astronomers ...
Black light paint or black light fluorescent paint is luminous paint that glows under a black light. It is based on pigments that respond to light in the ultraviolet segment of the electromagnetic spectrum. The paint may or may not be colorful under ordinary light. Black light paint should not be confused with phosphorescent (glow-in-the-dark ...
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The earliest published mentions of the lights begin in 1912, on the heels of the first publication of Jules Verne's 1906 novel Master of the World in English in 1911. An important plot point in the novel consists of a mad scientist constructing an airship inside his secret lair in Table Rock, near Morganton, North Carolina, activities which cause strange lights to appear on the summit of the ...
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Prague is still home of black light theatre – hundreds thousands of tourists visit their shows every month. HILT – the black light theatre of Theodor Hoidekr was the first ever who has involved live singing into black light show. The most popular HILT's black light theatre musical show was "Juliet's Dream" premiered on 14 February 2012 in ...