Occult (disambiguation)

Occult refers to secret or hidden knowledge, usually of a mystical nature. This may also refer to:

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Occultation

An occultation is an event that occurs when one object is hidden by another object that passes between it and the observer. The word is used in astronomy (see below). It can also refer to any situation wherein an object in the foreground blocks from view (occults) an object in the background. In this general sense, occultation applies to the visual scene observed from low-flying aircraft (or computer-generated imagery) wherein foreground objects obscure distant objects dynamically, as the scene changes over time.

Occultations by the Moon

The term occultation is most frequently used to describe those relatively frequent occasions when the Moon passes in front of a star during the course of its orbital motion around the Earth. Since the Moon, with an angular speed with respect to the stars of 0.55 arcsec/s or 2.7 µrad/s, has a very thin atmosphere and stars have an angular diameter of at most 0.057 arcseconds or 0.28 µrad, a star that is occulted by the Moon will disappear or reappear in 0.1 seconds or less on the Moon's edge, or limb. Events that take place on the Moon's dark limb are of particular interest to observers, because the lack of glare allows these occultations to more easily be observed and timed.

Creation (2009 film)

Creation is a 2009 British biographical drama film about Charles Darwin's relationship with his wife Emma and his memory of their eldest daughter Annie, as he struggles to write On the Origin of Species. The film, directed by Jon Amiel and starring real life couple Paul Bettany and Jennifer Connelly as Charles and Emma Darwin, is a partly biographical, partly fictionalised account, based on Randal Keynes's Darwin biography Annie's Box.

Plot

British naturalist Charles Darwin is a young father who lives a quiet life in an idyllic village. He is a brilliant and deeply emotional man, devoted to his wife and children. Darwin is especially fond of his eldest daughter Annie, a precocious and inquisitive ten-year-old. He teaches her much about nature and science, including his theory of evolution, and tells her stories of his travels. Her favourite story, despite the sad ending, is about the young orangutan Jenny, who is brought from Borneo to the London Zoo, where she finally died of pneumonia in the arms of her keeper. Darwin is furious when he learns that the family clergyman has made Annie kneel on rock salt as punishment for contradicting him about dinosaurs, as their existence and extinction contradicts the church's position that life is unchanging and that the Earth is very young.

Creation (Keith Jarrett album)

Creation is a 2015 live album by American pianist and composer Keith Jarrett.

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Pair production

Pair production is the creation of an elementary particle and its antiparticle, for example creating an electron and positron, a muon and antimuon, or a proton and antiproton. Pair production often refers specifically to a photon creating an electron-positron pair near a nucleus but can more generally refer to any neutral boson creating a particle-antiparticle pair. In order for pair production to occur, the incoming energy of the interaction must be above a threshold in order to create the pair – at least the total rest mass energy of the two particles – and that the situation allows both energy and momentum to be conserved. However, all other conserved quantum numbers (angular momentum, electric charge, lepton number) of the produced particles must sum to zero – thus the created particles shall have opposite values of each other. For instance, if one particle has electric charge of +1 the other must have electric charge of −1, or if one particle has strangeness of +1 then another one must have strangeness of −1. The probability of pair production in photon-matter interactions increases with photon energy and also increases approximately as the square of atomic number of the nearby atom.

Thy (name)

Thy is a common feminine Vietnamese given name meaning "poetry".

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Thy (district)

Thy (Danish pronunciation: [tˢyːˀ], local dialect [tʰyʲkʲʰ]) is a traditional district in northwestern Jutland, Denmark. It is situated north of the Limfjord, facing the North Sea and Skagerrak, and has a population of around 44,000. The capital is Thisted population of 14.000. Snedsted, Hanstholm and Hurup are minor towns in the area.

Since the Danish municipal reform of 1 January 2007, Thy is roughly identical with Thisted Municipality which belongs to the North Denmark Region. The southernmost part of Thy, the Thyholm Peninsula, belongs to Struer Municipality in the Central Denmark Region. Before the merger, Thy consisted of four municipalities: Hanstholm, Thisted, Sydthy and Thyholm.

Thy forms the western part of the North Jutlandic Island and borders Hanherred to the northeast with Vendsyssel even further northeast. In the Limfjord is the island of Mors, considered a twin district of Thy, and south of the fjord is Hardsyssel in western mainland Jutland. Thy is traditionally regarded part of northern and western Jutland alike. The dialect belongs to the West Jutlandic group.