Summary

HandWiki is the world's largest wiki-style encyclopedia dedicated to science, technology and computing. It allows you to create and edit articles as long as you have external citations and login account. In addition, this is a content management environment that can be used for collaborative editing of original scholarly content, such as books, manuals, monographs and tutorials.

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Climate Change and Ecosystems
Climate change has adversely affected both terrestrial and marine ecosystems, and is expected to further affect many ecosystems, including tundra, mangroves, coral reefs, and caves. Increasing global temperature, more frequent occurrence of extreme weather, and rising sea level are among some of the effects of climate change that will have the most significant impact. Some of the possible consequences of these effects include species decline and extinction, behavior change within ecosystems, increased prevalence of invasive species, a shift from forests being carbon sinks to carbon sources, ocean acidification, disruption of the water cycle, and increased occurrence of natural disasters, among others.
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  • 04 Nov 2022
Topic Review
Abdominal Exercise
Abdominal exercises are type of strength exercise those that affect the abdominal muscles (colloquially known as the stomach muscles or "abs").
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  • 04 Nov 2022
Topic Review
Extra (Acting)
A background actor or extra is a performer in a film, television show, stage, musical, opera or ballet production, who appears in a nonspeaking or nonsinging (silent) capacity, usually in the background (for example, in an audience or busy street scene). War films and epic films often employ background actors in large numbers: some films have featured hundreds or even thousands of paid background actors as cast members (hence the term "cast of thousands"). Likewise, grand opera can involve many background actors appearing in spectacular productions. On a film or TV set, background actors are usually referred to as "junior artist", "atmosphere", "background talent", "background performers", "background artists", "background cast members" or simply "background", while the term "extra" is rarely used. In a stage production, background actors are commonly referred to as "supernumeraries". In opera and ballet, they are called either "extras" or "supers".
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  • 04 Nov 2022
Topic Review
Wake
In fluid dynamics, a wake may either be: 1. the region of recirculating flow immediately behind a moving or stationary blunt body, caused by viscosity, which may be accompanied by flow separation and turbulence, or 2. the wave pattern on the water surface downstream of an object in a flow, or produced by a moving object (e.g. a ship), caused by density differences of the fluids above and below the free surface and gravity (or surface tension).
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  • 08 Nov 2022
Topic Review
Sceptre (Fusion Reactor)
Sceptre was an early fusion power device based on the Z-pinch concept of plasma confinement, built in the UK starting in 1957. They were the ultimate versions of a series of devices tracing their history to the original pinch machines, built at Imperial College London by Cousins and Ware in 1947. When the UK's fusion work was classified in 1950, Ware's team was moved to the Associated Electrical Industries (AEI) labs at Aldermaston. The team worked on the problems associated with using metal tubes with high voltages, in support of the efforts at Harwell. When Harwell's ZETA machine apparently produced fusion, AEI quickly built a smaller machine, Sceptre, to test their results. Sceptre also produced neutrons, apparently confirming the ZETA experiment. It was later found that the neutrons were spurious, and UK work on Z-pinch ended in the early 1960s.
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  • 04 Nov 2022
Topic Review
HADOPI Law
The French HADOPI law or Creation and Internet law (French: Haute Autorité pour la Diffusion des Œuvres et la Protection des droits d'auteur sur Internet, pronounced [ot‿ɔtɔʁite puʁ la difyzjɔ̃ dɛz‿œvʁ e la pʁɔtɛksjɔ̃ de dʁwa d‿otœʁ syʁ ɛ̃tɛʁnɛt]; or, loosely in English, "Supreme Authority for the Distribution of Works and Protection of Copyright on the Internet") was introduced during 2009, providing what is known as a graduated response as a means to encourage compliance with copyright laws. HADOPI is the acronym of the government agency created to administer it. The part of the HADOPI law that allowed for suspension of Internet access to a repeat infringer was revoked on 8 July 2013 by the French government because that penalty was considered to be disproportionate. The power to impose fines or other sanctions on repeat infringers remains in effect. In January 2022, the Hadopi agency merged with the High Audiovisual Council (CSA), to form the Regulatory Authority for Audiovisual and Digital Communication (Autorité de régulation de la communication audiovisuelle et numérique; ARCOM).
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  • 04 Nov 2022
Topic Review
Aesthetics
Aesthetics, or esthetics, is a branch of philosophy that deals with the nature of beauty and taste, as well as the philosophy of art (its own area of philosophy that comes out of aesthetics). It examines aesthetic values, often expressed through judgments of taste. Aesthetics covers both natural and artificial sources of experiences and how we form a judgment about those sources. It considers what happens in our minds when we engage with objects or environments such as viewing visual art, listening to music, reading poetry, experiencing a play, watching a fashion show, movie, sports or even exploring various aspects of nature. The philosophy of art specifically studies how artists imagine, create, and perform works of art, as well as how people use, enjoy, and criticize art. Aesthetics considers why people like some works of art and not others, as well as how art can affect moods or even our beliefs. Both aesthetics and the philosophy of art ask questions like "What is art?," "What is a work of art?," and "What makes good art?" Scholars in the field have defined aesthetics as "critical reflection on art, culture and nature". In modern English, the term "aesthetic" can also refer to a set of principles underlying the works of a particular art movement or theory (one speaks, for example, of a Renaissance aesthetic).
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  • 04 Nov 2022
Topic Review
Socialist Revolutionary Party
The Socialist Revolutionary Party, or Party of Socialist-Revolutionaries (the SRs or Esers; Russian: Партия социалистов-революционеров, ПСР or эсеры, esery) was a major political party in late Imperial Russia and early Soviet Russia. The SRs were agrarian socialists who obtained a mass following in the years preceding the Russian Revolution by endorsing the overthrow of the Tsar and the redistribution of land to the peasantry. In the elections following the 1905 Revolution, the SRs obtained the majority of the few seats alloted to the peasantry. Following the 1907 coup, the SRs would boycott all subsequent Dumas until the fall of the Tsar in the February Revolution. Controversially, the party leadership would endorse the Russian Provisional Government and participated in multiple coalitions with liberal and moderate socialist parties, while an increasingly vocal minority rejected the Provisional Government's authority and began to align with the Bolsheviks. The pro-government and pro-Soviet factions could not be reconciled and split over the course of the summer of 1917 into the Right and Left SRs respectively. The Left SRs supported the October Revolution and formed a coalition government with the Bolsheviks from November 1917 to July 1918, while the Right SRs denounced what they saw as an illegal coup and boycotted the Congress of Soviets. The SRs obtained a plurality in elections to the Russian Constituent Assembly, with most of the defunct party's seats going to the Right. Citing outdated voter rolls which did not acknowledge the party split and the Assembly's conflicts with the Congress of Soviets, the Bolshevik-Left SR government would dissolve the Constituent Assembly in January 1918. The Left SRs would eventually leave the coalition in July 1918 in protest to the signing of the Treaty of Brest-Litovsk. An abortive uprising by the leadership of the Left SRs resulted in the immediate arrest of most of the party's members. The majority of Left SRs, who opposed the uprising were gradually freed and allowed to keep their government positions, but were unable to organize a new central organ and gradually splintered into multiple pro-Bolshevik parties, all of which would eventually join the Communists by 1921. The Right SRs supported the Whites during the Russian Civil War but were increasingly marginalized by the movement's anti-socialist leadership and ultimately purged. A small Right SR remnant continued to operate in exile from 1923 to 1940 as a member of the Labour and Socialist International.
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  • 04 Nov 2022
Topic Review
Binary Scaling
Binary scaling is a computer programming technique used typically in embedded C, DSP and assembler programs to implement non-integer operations by using the native integer arithmetic of the processor.
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  • 04 Nov 2022
Topic Review
4 Times Square
4 Times Square, also formerly known as the Condé Nast Building, is a skyscraper in Times Square in Midtown Manhattan, New York City . Located on Broadway between West 42nd and 43rd Streets, the structure was finished in January 2000 as part of a larger project to redevelop 42nd Street. The architects were Fox & Fowle, who also designed the Reuters Building as part of the larger project. The 809-foot (246.5 m), 52-story building is the 28th tallest building in New York City and the 59th tallest in the United States. Owned by the Durst Organization, the building contains 1,600,000 square feet (150,000 m2) of floor space.
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  • 04 Nov 2022
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