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Current
Currents, Current or The Current may refer to: Science and technology * Current (fluid), the flow of a liquid or a gas ** Air current, a flow of air ** Ocean current, a current in the ocean *** Rip current, a kind of water current ** Current (stream), currents in rivers and streams ** Convection current, flow caused by unstable density variation due to temperature differences * Current (mathematics), geometrical current in differential topology * Conserved current, a field associated to a symmetry in field theory * Electric current, a flow of electric charge through a medium * Probability current, in quantum mechanics * IBM Current, an early personal information management program Arts and entertainment Music * ''Current'' (album), a 1982 album by Heatwave * ''Currents'' (Eisley album) * ''Currents'' (Tame Impala album) * "The Current" (song), by the Blue Man Group * "Currents", a song by Dashboard Confessional from ''Dusk and Summer'', 2006 * "Currents", a song by Drake from ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electric Current
An electric current is a stream of charged particles, such as electrons or ions, moving through an electrical conductor or space. It is measured as the net rate of flow of electric charge through a surface or into a control volume. The moving particles are called charge carriers, which may be one of several types of particles, depending on the conductor. In electric circuits the charge carriers are often electrons moving through a wire. In semiconductors they can be electrons or holes. In an electrolyte the charge carriers are ions, while in plasma, an ionized gas, they are ions and electrons. The SI unit of electric current is the ampere, or ''amp'', which is the flow of electric charge across a surface at the rate of one coulomb per second. The ampere (symbol: A) is an SI base unit. Electric current is measured using a device called an ammeter. Electric currents create magnetic fields, which are used in motors, generators, inductors, and transformers. In ordi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rip Current
A rip current, often simply called a rip (or misleadingly a ''rip tide''), is a specific kind of water current that can occur near beaches with breaking waves. A rip is a strong, localized, and narrow current of water which moves directly away from the shore, cutting through the lines of breaking waves like a river running out to sea. The current in a rip is strongest and fastest next to the surface of the water. Rip currents can be hazardous to people in the water. Swimmers who are caught in a rip current and who do not understand what is happening, or who may not have the necessary water skills, may panic, or they may exhaust themselves by trying to swim directly against the flow of water. Because of these factors, rip currents are the leading cause of rescues by lifeguards at beaches, and in the United States, they are the cause of an average of 46 deaths by drowning per year. A rip current is not the same thing as undertow, although some people use the term incorrectly whe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ocean Current
An ocean current is a continuous, directed movement of sea water generated by a number of forces acting upon the water, including wind, the Coriolis effect, breaking waves, cabbeling, and temperature and salinity differences. Depth contours, shoreline configurations, and interactions with other currents influence a current's direction and strength. Ocean currents are primarily horizontal water movements. An ocean current flows for great distances and together they create the global conveyor belt, which plays a dominant role in determining the climate of many of Earth’s regions. More specifically, ocean currents influence the temperature of the regions through which they travel. For example, warm currents traveling along more temperate coasts increase the temperature of the area by warming the sea breezes that blow over them. Perhaps the most striking example is the Gulf Stream, which makes northwest Europe much more temperate for its high latitude compared to other ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Current TV
Current TV was an American television channel which broadcast from August 1, 2005, to August 20, 2013. Prior INdTV founders Al Gore and Joel Hyatt, with Ronald Burkle, each held a sizable stake in Current TV. Comcast and DirecTV each held a smaller stake. The channel started out as a user-generated content channel with content made by viewers in 15-minute blocks. The channel later switched formats to become an independent news network aimed at progressive politics. Neither format brought the success that Gore and Hyatt had wanted. On January 2, 2013, it was announced that Current TV had been sold by Gore and Hyatt to Qatar-based broadcaster Al Jazeera Media Network. AJMN stated it planned to shut down the Current TV channel, retain its off-air staff, and to launch a new New York City-based channel named Al Jazeera America (using Current's distribution network). Current had operated in the same way with Newsworld International, a predecessor to Current. They also said they planned ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Currents (Tame Impala Album)
''Currents'' is the third studio album by Australian musical project Tame Impala. It was released on 17 July 2015 by Modular Recordings and Universal Music Australia. In the United States it was released by Interscope Records and Fiction Records, while Caroline International released it in other international regions. Like the project's previous two albums, ''Currents'' was written, recorded, performed, and produced by Kevin Parker. For the first time, Parker mixed the music and recorded all instruments by himself; the album featured no other collaborators. After the release of his previous album, '' Lonerism'' (2012), Parker began work on ''Currents'', largely recording at his home studio in Fremantle. He engrossed himself with writing and recording, and in keeping with his reputation as a musical auteur, laboured over the details of each song, ultimately causing the release date to be delayed by two months. In contrast to the psychedelic rock sound of the project's prior wor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Current (magazine)
''The Current'' is a magazine of contemporary politics, culture, and Jewish affairs at Columbia University (New York, United States). Launched in December 2005, ''The Current'' publishes essays and features on a broad range of subjects including Literary & Arts, Politics, and culture. There is also a Creative section in every issue. ''The Current '' has conducted interviews with Muhammad Yunus, Stanley Fish, Myron Kolatch, Seyla Benhabib, Judith Butler Judith Pamela Butler (born February 24, 1956) is an American philosopher and gender theorist whose work has influenced political philosophy, ethics, and the fields of third-wave feminism, queer theory, and literary theory. In 1993, Butle ..., and others. Its editorials have addressed issues such as university speech codes, controversial campus speakers, corporate divestment, humanitarian activism, the Saffron Revolution in Burma, the history of the Student Struggle for Soviet Jewry, and various histories of racial a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Current (mathematics)
In mathematics, more particularly in functional analysis, differential topology, and geometric measure theory, a ''k''-current in the sense of Georges de Rham is a functional on the space of compactly supported differential ''k''-forms, on a smooth manifold ''M''. Currents formally behave like Schwartz distributions on a space of differential forms, but in a geometric setting, they can represent integration over a submanifold, generalizing the Dirac delta function, or more generally even directional derivatives of delta functions ( multipoles) spread out along subsets of ''M''. Definition Let \Omega_c^m(M) denote the space of smooth ''m''- forms with compact support on a smooth manifold M. A current is a linear functional on \Omega_c^m(M) which is continuous in the sense of distributions. Thus a linear functional T : \Omega_c^m(M)\to \R is an ''m''-dimensional current if it is continuous in the following sense: If a sequence \omega_k of smooth forms, all supported in the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Probability Current
In quantum mechanics, the probability current (sometimes called probability flux) is a mathematical quantity describing the flow of probability. Specifically, if one thinks of probability as a heterogeneous fluid, then the probability current is the rate of flow of this fluid. It is a real vector that changes with space and time. Probability currents are analogous to mass currents in hydrodynamics and electric currents in electromagnetism. As in those fields, the probability current is related to the probability density function via a continuity equation. The probability current is invariant under gauge transformation. The concept of probability current is also used outside of quantum mechanics, when dealing with probability density functions that change over time, for instance in Brownian motion and the Fokker–Planck equation. Definition (non-relativistic 3-current) Free spin-0 particle In non-relativistic quantum mechanics, the probability current j of the wave fun ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Conserved Current
In physics a conserved current is a current, j^\mu, that satisfies the continuity equation \partial_\mu j^\mu=0. The continuity equation represents a conservation law, hence the name. Indeed, integrating the continuity equation over a volume V, large enough to have no net currents through its surface, leads to the conservation law \fracQ = 0\;, where Q = \int_V j^0 dV is the conserved quantity. In gauge theories the gauge fields couple to conserved currents. For example, the electromagnetic field couples to the conserved electric current. Conserved quantities and symmetries Conserved current is the flow of the canonical conjugate of a quantity possessing a continuous translational symmetry. The continuity equation for the conserved current is a statement of a ''conservation law''. Examples of canonical conjugate quantities are: *Time and energy - the continuous translational symmetry of time implies the conservation of energy *Space and momentum - the continuous translational ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Current (radio Program)
''The Current'' is a Canadian current affairs radio program which airs weekday mornings on CBC Radio One. It airs weekdays starting at 8:37 a.m. local time and runs until 10 a.m., and features interview sessions and radio documentaries that typically take up a half hour each. History The program premiered in 2002, and was hosted from its inception by investigative journalist Anna Maria Tremonti. Tremonti retired from the program in June 2019. Laura Lynch served as interim host until the end of 2019, and Matt Galloway took over as the program's new permanent host effective January 6, 2020. During the COVID-19 pandemic until May 15, 2020, ''The Current's'' runtime was extended to the rest of the morning for most of the nation to cover that issue, replacing '' Q'' (although it still had its shorter evening broadcast slot) and the various half-hour 11:30 AM shows with the host of the former show, Tom Power appearing for selected arts stories related to the pandemic. In addit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Convection Current
Convection is single or multiphase fluid flow that occurs spontaneously due to the combined effects of material property heterogeneity and body forces on a fluid, most commonly density and gravity (see buoyancy). When the cause of the convection is unspecified, convection due to the effects of thermal expansion and buoyancy can be assumed. Convection may also take place in soft solids or mixtures where particles can flow. Convective flow may be transient (such as when a multiphase mixture of oil and water separates) or steady state (see Convection cell). The convection may be due to gravitational, electromagnetic or fictitious body forces. Heat transfer by natural convection plays a role in the structure of Earth's atmosphere, its oceans, and its mantle. Discrete convective cells in the atmosphere can be identified by clouds, with stronger convection resulting in thunderstorms. Natural convection also plays a role in stellar physics. Convection is often categorised or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
KCMP
KCMP (89.3 FM, 89.3 The Current) is a radio station owned by Minnesota Public Radio (MPR) that broadcasts a AAA music format including a significant rotation of songs by local artists. Licensed to Northfield, Minnesota and covering the Minneapolis-St. Paul market, the station's studios are located at the MPR Broadcast Center on Cedar Street in downtown St. Paul, while its transmitter is located atop the Vermillion Highlands near Coates. The Current is also broadcast on stations in Rochester, Duluth-Superior, Pasadena-Los Angeles, translators around Minnesota and online. Format The modern "third service" for MPR (the organization already operates "news and information" and classical music networks) programs a wide range of music. The KCMP "anti-format" was announced in December 2004, along with the station's new program director Steve Nelson and music director Thorn Skroch. KCMP is modeled on noncommercial alternative stations established earlier, including KEXP (Seattle), KC ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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