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Symmetry (other)
Symmetry may refer to: Generally: *Symmetry, the broad concept In mathematics, science and technology: *Symmetry (geometry), of shapes in a metric space such as the plane *Symmetry in mathematics, of mathematical structures in general *Symmetry (physics), a physical or mathematical feature of the system (observed or intrinsic) that is "preserved" under some change *Symmetry in biology, the balanced distribution of duplicate body parts or shapes *Molecular symmetry in chemistry * Symmetry (Sequent Computer Systems), a line of SMP computers by Sequent Computer Systems *Symmetry Magazine, a Fermilab/SLAC publication covering advanced physics In arts and entertainment: *Symmetry (band), American instrumental duo * ''Symmetry'' (film), a Polish film * "Symmetry" (''Dead Zone''), an episode of the television series ''Dead Zone'' *Symmetric scale, in music * ''Symmetry'' (Saga album), a studio album by Canadian rock band Saga *"Symmetry", a song by Little Boots on the album ''Hands'' O ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Symmetry
Symmetry (from grc, συμμετρία "agreement in dimensions, due proportion, arrangement") in everyday language refers to a sense of harmonious and beautiful proportion and balance. In mathematics, "symmetry" has a more precise definition, and is usually used to refer to an object that is invariant under some transformations; including translation, reflection, rotation or scaling. Although these two meanings of "symmetry" can sometimes be told apart, they are intricately related, and hence are discussed together in this article. Mathematical symmetry may be observed with respect to the passage of time; as a spatial relationship; through geometric transformations; through other kinds of functional transformations; and as an aspect of abstract objects, including theoretic models, language, and music. This article describes symmetry from three perspectives: in mathematics, including geometry, the most familiar type of symmetry for many people; in science and nature ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Symmetry (film)
''Symmetry'' ( pl, Symetria) is a 2003 Polish drama film directed by Konrad Niewolski. Plot In the first scene of the movie, before the title credits, a prison guard is seen writing a report from an event in one of the cells, in which a dead body was found. The guard writes "suicide" as a probable cause of death. Although it is not explicitly explained, it is implied that this scene takes part after the rest of the action of the movie. On a very rainy evening a young man, Łukasz Machnacki, comes out of a cinema. He is approached by policemen, who without any questions or explanation handcuff him and take him to the police car. He is forced to take part in a police lineup. Łukasz does not understand anything that is happening, and is shocked to learn, during an interrogation, that he has been recognized by an elderly woman, a robbery victim, as the culprit. He maintains his innocence, but is unable to provide any alibi. The officer who interrogates him informs Łukasz he's arr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Salvinorin B Ethoxymethyl Ether
Salvinorin B methoxymethyl ether (2-''O''-methoxymethylsalvinorin B) is a semi-synthetic analogue of the natural product salvinorin A used in scientific research. It has a longer duration of action of around 2–3 hours, compared to less than 30 minutes for salvinorin A, and has increased affinity and potency at the κ-opioid receptor. It is made from salvinorin B, which is most conveniently made from salvinorin A by deacetylation. The crystal structure reveals that the methoxy group overlaps with the acetyl group of salvinorin A, but with a different orientation. Salvinorin B methoxymethyl ether has a Ki of 0.60 nM at the κ opioid receptor, and is around five times more potent than salvinorin A in animal studies, although it is still only half as potent as its stronger homolog salvinorin B ethoxymethyl ether (symmetry). See also * Salvinorin B ethoxymethyl ether * RB-64 RB-64 (22-thiocyanatosalvinorin A) is a semi-synthetic salvinorin A, salvinorin derivative and a κ- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Facial Symmetry
Facial symmetry is one specific measure of bodily symmetry. Along with traits such as averageness and youthfulness it influences judgments of aesthetic traits of physical attractiveness and beauty. For instance, in mate selection, people have been shown to have a preference for symmetry. Facial bilateral symmetry is typically defined as fluctuating asymmetry of the face comparing random differences in facial features of the two sides of the face. The human face also has systematic, directional asymmetry: on average, the face (mouth, nose and eyes) sits systematically to the left with respect to the axis through the ears, the so-called ''aurofacial asymmetry''. Directional asymmetry Directional asymmetry is a systematic asymmetry of some parts of the face across the population. A theory of directional asymmetries in the human body is the axial twist hypothesis. As predicted by this theory, the eyes, nose and mouth are, on average, located slightly to the left of the axis throug ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hands (Little Boots Album)
''Hands'' is the debut studio album by English singer and songwriter Little Boots. It was released on 5 June 2009 by 679 Artists, 679 Recordings and Atlantic Records to generally positive reviews. Many critics complimented its "well-crafted" pop songs and "diverse" production. ''Hands'' primarily features songs about love, relationships and heartbreak, and takes influence from a variety of music styles such as disco, 1980s synth-pop and Eurodance. The album reached number five on the UK Albums Chart, and its first two singles, "New in Town (song), New in Town" and "Remedy (Little Boots song), Remedy", peaked at numbers 13 and six on the UK Singles Chart, respectively. Recording and production Little Boots began recording her debut album in Los Angeles with Greg Kurstin and Hot Chip's Joe Goddard in early 2008. While in Los Angeles, she spent two days recording with RedOne. Following the Sound of..., BBC Sound of 2009 poll, which Little Boots won, her record label, management and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Symmetry (Saga Album)
''Symmetry'' is the twenty-third studio album by Canadian rock band Saga. It was released on March 12, 2021. It contains acoustic versions of previously released songs, some in the form of medleys or augmented with new interludes. The idea originated on the 40th anniversary tour in 2017, where the band would perform acoustically as their own support band "Pockets". Initially, the band considered releasing a live album from this tour, but decided against it and settled for new studio recordings instead. The individual parts were recorded remotely during the COVID-19 pandemic, the arrangements were mostly worked out by Jim Crichton, who had retired from live performances in 2017. Several songs had already been played in similar versions on the aforementioned tour ("Time to Go", "The Perfectionist", "Images", "No Regrets" and the medley of songs from ''Trust''). It was also on this tour when drummer Mike Thorne first used kitchen utensils for percussion sounds in the acoustic set. Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Symmetric Scale
In music, a symmetric scale is a music scale which equally divides the octave. The concept and term appears to have been introduced by Joseph Schillinger and further developed by Nicolas Slonimsky as part of his famous ''Thesaurus of Scales and Melodic Patterns''. In twelve-tone equal temperament, the octave can only be equally divided into two, three, four, six, or twelve parts, which consequently may be filled in by adding the same exact interval or sequence of intervals to each resulting note (called "interpolation of notes"). Examples include the octatonic scale (also known as the ''symmetric diminished'' scale; its mirror image is known as the ''inverse symmetric diminished'' scale) and the two-semitone tritone scale: As explained above, both are composed of repeating sub-units within an octave. This property allows these scales to be transposed to other notes, yet retain exactly the same notes as the original scale (Translational symmetry). This may be seen quite readil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Symmetry (Dead Zone)
Symmetry () in everyday life refers to a sense of harmonious and beautiful proportion and balance. In mathematics, the term has a more precise definition and is usually used to refer to an object that is invariant under some transformations, such as translation, reflection, rotation, or scaling. Although these two meanings of the word can sometimes be told apart, they are intricately related, and hence are discussed together in this article. Mathematical symmetry may be observed with respect to the passage of time; as a spatial relationship; through geometric transformations; through other kinds of functional transformations; and as an aspect of abstract objects, including theoretic models, language, and music. This article describes symmetry from three perspectives: in mathematics, including geometry, the most familiar type of symmetry for many people; in science and nature; and in the arts, covering architecture, art, and music. The opposite of symmetry is as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Symmetry (band)
Symmetry is an American instrumental musical duo consisting of Johnny Jewel and Nat Walker of Chromatics. In late 2010 Jewel was asked by director Nicolas Winding Refn and lead actor Ryan Gosling to score the film ''Drive''. He collaborated with Walker, but their material was ultimately not used. However the film soundtrack did include previously released music from Chromatics and Desire, both on Jewel's Italians Do It Better label. Jewel and Walker then formed Symmetry and further reworked and expanded on the original tracks, ending up with nine hours of music, two hours of which were released as an LP entitled "''Themes For An Imaginary Film''" in 2011. In 2011, they also released a promotional LP entitled ''The Messenger'', in a limited edition of 1,500 copies on clear vinyl. In October 2013, a video for the song "The Hunt" was released via YouTube. In 2017, ''The Messenger'' was re-released with bonus tracks. Symmetry has performed live internationally at private events for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Symmetry (geometry)
In geometry, an object has symmetry if there is an operation or transformation (such as translation, scaling, rotation or reflection) that maps the figure/object onto itself (i.e., the object has an invariance under the transform). Thus, a symmetry can be thought of as an immunity to change. For instance, a circle rotated about its center will have the same shape and size as the original circle, as all points before and after the transform would be indistinguishable. A circle is thus said to be ''symmetric under rotation'' or to have ''rotational symmetry''. If the isometry is the reflection of a plane figure about a line, then the figure is said to have reflectional symmetry or line symmetry; it is also possible for a figure/object to have more than one line of symmetry. The types of symmetries that are possible for a geometric object depend on the set of geometric transforms available, and on what object properties should remain unchanged after a transformation. Because the comp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SLAC
SLAC National Accelerator Laboratory, originally named the Stanford Linear Accelerator Center, is a United States Department of Energy National Laboratory operated by Stanford University under the programmatic direction of the U.S. Department of Energy Office of Science and located in Menlo Park, California. It is the site of the Stanford Linear Accelerator, a 3.2 kilometer (2-mile) linear accelerator constructed in 1966 and shut down in the 2000s, that could accelerate electrons to energies of 50 GeV. Today SLAC research centers on a broad program in atomic and solid-state physics, chemistry, biology, and medicine using X-rays from synchrotron radiation and a free-electron laser as well as experimental and theoretical research in elementary particle physics, astroparticle physics, and cosmology. History Founded in 1962 as the Stanford Linear Accelerator Center, the facility is located on of Stanford University-owned land on Sand Hill Road in Menlo Park, Cal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fermilab
Fermi National Accelerator Laboratory (Fermilab), located just outside Batavia, Illinois, near Chicago, is a United States Department of Energy national laboratory specializing in high-energy particle physics. Since 2007, Fermilab has been operated by the Fermi Research Alliance, a joint venture of the University of Chicago, and the Universities Research Association (URA). Fermilab is a part of the Illinois Technology and Research Corridor. Fermilab's Main Injector, two miles (3.3 km) in circumference, is the laboratory's most powerful particle accelerator. The accelerator complex that feeds the Main Injector is under upgrade, and construction of the first building for the new PIP-II linear accelerator began in 2020. Until 2011, Fermilab was the home of the 6.28 km (3.90 mi) circumference Tevatron accelerator. The ring-shaped tunnels of the Tevatron and the Main Injector are visible from the air and by satellite. Fermilab aims to become a world center in neutri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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