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A useful idiot is a person perceived as propagandizing for a cause—particularly a bad cause originating from a devious, ruthless source—without fully comprehending the cause's goals, and who is cynically being used by the cause's leaders. Erroneously attributed to Vladimir Lenin, the term was often used during the Cold War to describe non-communists regarded as susceptible to communist propaganda and psychological manipulation. Similar terms also exist in other languages.

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Different methods of electricity generation can incur a variety of different costs, which can be divided into three general categories: 1) wholesale costs, or all costs paid by utilities associated with acquiring and distributing electricity to consumers, 2) retail costs paid by consumers, and 3) external costs, or externalities, imposed on society. Wholesale costs include initial capital, operations & maintenance (O&M), transmission, and costs of decommissioning. Depending on the local regulatory environment, some or all wholesale costs may be passed through to consumers. These are costs per unit of energy, typically represented as dollars/megawatt hour (wholesale). The calculations also assist governments in making decisions regarding energy policy. On average the levelized cost of electricity from utility scale solar power and onshore wind power is less than from coal and gas-fired power stations,: TS-25  but this varies a lot depending on location.: 6–65

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Under-occupied developments in China were mostly unoccupied property developments in China, and frequently referred to as "ghost cities" or ghost towns. The phenomenon was observed and recorded as early as 2006 by writer Wade Shepard, and subsequently reported by news media over the decades. Although a feature of discourse on the Chinese economy and urbanization in China in the 2010s, formerly under-occupied developments have largely filled up.

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Different methods of electricity generation can incur a variety of different costs, which can be divided into three general categories: 1) wholesale costs, or all costs paid by utilities associated with acquiring and distributing electricity to consumers, 2) retail costs paid by consumers, and 3) external costs, or externalities, imposed on society. Wholesale costs include initial capital, operations & maintenance (O&M), transmission, and costs of decommissioning. Depending on the local regulatory environment, some or all wholesale costs may be passed through to consumers. These are costs per unit of energy, typically represented as dollars/megawatt hour (wholesale). The calculations also assist governments in making decisions regarding energy policy. On average the levelized cost of electricity from utility scale solar power and onshore wind power is less than from coal and gas-fired power stations,: TS-25  but this varies a lot depending on location.: 6–65

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Thermal depolymerization (TDP) is the process of converting a polymer into a monomer or a mixture of monomers, by predominantly thermal means. It may be catalysed or un-catalysed and is distinct from other forms of depolymerisation which may rely on the use of chemicals or biological action. This process is associated with an increase in entropy. For most polymers thermal depolymerisation is chaotic process, giving a mixture of volatile compounds. Materials may be depolymerised in this way during waste management, with the volatile components produced being burnt as a form of synthetic fuel in a waste-to-energy process. For other polymers thermal depolymerisation is an ordered process giving a single product, or limited range of products, these transformations are usually more valuable and form the basis of some plastic recycling technologies.

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In computing, floating point operations per second (FLOPS, flops or flop/s) is a measure of computer performance, useful in fields of scientific computations that require floating-point calculations. For such cases, it is a more accurate measure than measuring instructions per second.

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Worldwide, many nuclear accidents and serious incidents have occurred before and since the Chernobyl disaster in 1986. Two thirds of these mishaps occurred in the US. The French Atomic Energy Commission (CEA) has concluded that technical innovation cannot eliminate the risk of human errors in nuclear plant operation.

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The dead Internet theory is an online conspiracy theory that asserts that the Internet now consists mainly of bot activity and automatically generated content that is manipulated by algorithmic curation, marginalizing organic human activity. Proponents of the theory believe these bots are created intentionally to help manipulate algorithms and boost search results in order to ultimately manipulate consumers. Furthermore, some proponents of the theory accuse government agencies of using bots to manipulate public perception, stating "The U.S. government is engaging in an artificial intelligence powered gaslighting of the entire world population". The date given for this "death" was generally around 2016 or 2017.The theory has gained traction because much of the observed phenomena is grounded in quantifiable phenomena like increased bot traffic. However, the idea that it is a coordinated psyop has been described by Kaitlin Tiffany, staff writer at The Atlantic, as a "paranoid fantasy," even if there are legitimate criticisms involving bot traffic and the integrity of the internet.

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The Environmental Protection Agency (EPA) is an independent agency of the United States government tasked with environmental protection matters. President Richard Nixon proposed the establishment of EPA on July 9, 1970; it began operation on December 2, 1970, after Nixon signed an executive order. The order establishing the EPA was ratified by committee hearings in the House and Senate. The agency is led by its administrator, who is appointed by the president and approved by the Senate. The current administrator is Michael S. Regan. The EPA is not a Cabinet department, but the administrator is normally given cabinet rank. The EPA has its headquarters in Washington, D.C., regional offices for each of the agency's ten regions, and 27 laboratories.The agency conducts environmental assessment, research, and education. It has the responsibility of maintaining and enforcing national standards under a variety of environmental laws, in consultation with state, tribal, and local governments. EPA enforcement powers include fines, sanctions, and other measures. It delegates some permitting, monitoring, and enforcement responsibility to U.S. states and the federally recognized tribes. The agency also works with industries and all levels of government in a wide variety of voluntary pollution prevention programs and energy conservation efforts. The agency's budgeted employee level in 2023 is 16,204.1 full-time equivalent (FTE). More than half of EPA's employees are engineers, scientists, and environmental protection specialists; other employees include legal, public affairs, financial, and information technologists.

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Parasocial interaction (PSI) refers to a kind of psychological relationship experienced by an audience in their mediated encounters with performers in the mass media, particularly on television and on online platforms. Viewers or listeners come to consider media personalities as friends, despite having no or limited interactions with them. PSI is described as an illusory experience, such that media audiences interact with personas (e.g., talk show hosts, celebrities, fictional characters, social media influencers) as if they are engaged in a reciprocal relationship with them. The term was coined by Donald Horton and Richard Wohl in 1956.A parasocial interaction, an exposure that garners interest in a persona, becomes a parasocial relationship after repeated exposure to the media persona causes the media user to develop illusions of intimacy, friendship, and identification. Positive information learned about the media persona results in increased attraction, and the relationship progresses. Parasocial relationships are enhanced due to trust and self-disclosure provided by the media persona.Media users are loyal and feel directly connected to the persona, much as they are connected to their close friends, by observing and interpreting their appearance, gestures, voice, conversation, and conduct. Media personas have a significant amount of influence over media users, positive or negative, informing the way that they perceive certain topics or even their purchasing habits. Studies involving longitudinal effects of parasocial interactions on children are still relatively new, according to developmental psychologist Sandra L. Calvert.Social media introduces additional opportunities for parasocial relationships to intensify because it provides more opportunities for intimate, reciprocal, and frequent interactions between the user and persona. These virtual interactions may involve commenting, following, liking, or direct messaging. The consistency in which the persona appears could also lead to a more intimate perception in the eyes of the user.

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This article lists notable military accidents involving nuclear material. Civilian accidents are listed at List of civilian nuclear accidents. For a general discussion of both civilian and military accidents, see nuclear and radiation accidents. For other lists, see Lists of nuclear disasters and radioactive incidents.

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BlackBerry Limited (formerly Research In Motion) is a Canadian software company specializing in cybersecurity. Founded in 1984, it originally developed the BlackBerry brand of interactive pagers, smartphones and tablets. In 2016, it transitioned to a cybersecurity enterprise software and services company under CEO John S. Chen. Its products are used by various businesses, car manufacturers, and government agencies to prevent hacking and ransomware attacks. They include the BlackBerry Cylance, the QNX real-time operating system; BlackBerry Enterprise Server (BlackBerry Unified Endpoint Manager), and a Unified Endpoint Management (UEM) platform.

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This is a list of U.S. states by total electricity generation, percent of generation that is renewable, total renewable generation, percent of total domestic renewable generation, and carbon intensity in 2021.

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China is one of the world's largest producers of nuclear power. The country ranks third in the world both in total nuclear power capacity installed and electricity generated, accounting for around one tenth of global nuclear power generated. As of February 2023, China has 55 plants with 57GW in operation, 22 under construction with 24 GW and more than 70 planned with 88GW. About 5% of electricity in the country is due to nuclear energy. These plants generated 417 TWh of electricity in 2022 This is versus the September 2022 numbers of 53 nuclear reactors, with a total capacity of 55.6 gigawatt (GW). In 2019, nuclear power had contributed 4.9% of the total Chinese electricity production, with 348.1 TWh.Nuclear power has been looked into as an alternative to coal due to increasing concerns about air quality, climate change and fossil fuel shortages. The China General Nuclear Power Group has articulated the goal of 200 GW by 2035, produced by 150 additional reactors.China has two major nuclear power companies, the China National Nuclear Corporation operating mainly in north-east China, and the China General Nuclear Power Group (formerly known as China Guangdong Nuclear Power Group) operating mainly in south-east China.China aims to maximize self-reliance on nuclear reactor technology manufacturing and design, although international cooperation and technology transfer are also encouraged. Advanced pressurized water reactors such as the Hualong One are the mainstream technology in the near future, and the Hualong One is also planned to be exported. China plans to build as many as thirty nuclear power reactors in countries involved in the Belt and Road Initiative by 2030. By mid-century fast neutron reactors are seen as the main technology, with a planned 1400 GW capacity by 2100. China is also involved in the development of nuclear fusion reactors through its participation in the ITER project, having constructed an experimental nuclear fusion reactor known as EAST located in Hefei, as well as research and development into the thorium fuel cycle as a potential alternative means of nuclear fission.

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The Surface Neo is an unreleased dual-touchscreen 2-in-1 PC that was unveiled by Microsoft on October 2, 2019. Slated to be part of the Microsoft Surface family of devices, the Surface Neo was designed to be used in various "postures" for different use cases and multitasking scenarios involving its screens, and feature Windows 10X—a variant of Windows 10 designed exclusively for dual-screen devices. However, as of December 2023, over four years after the Surface Neo was announced, it is still unreleased, likely rendering it vaporware. The Surface Neo was expected to be launched in late-2020, alongside a range of other Windows 10X devices from third-party manufacturers. In May 2020, Microsoft postponed the release of Windows 10X-based dual-screen devices in favor of launching it with single-screen devices instead. This did not come to fruition, and Microsoft eventually cancelled Windows 10X outright in May 2021, with aspects of 10X repurposed for the mainstream Windows 11. Its sister device, the Android-based Surface Duo, was released in September 2020.

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The Beeching cuts were a major series of route closures and service changes made as part of the restructuring of the nationalised railway system in Great Britain in the 1960s. They are named for Richard Beeching, then-chair of the British Railways Board and the author of two reports – The Reshaping of British Railways (1963) and The Development of the Major Railway Trunk Routes (1965) – that outlined the necessity of improving the efficiency of the railways and the plan for achieving this through restructuring. The first report identified 2,363 stations and 5,000 miles (8,000 km) of railway line for closure, amounting to 55% of stations, 30% of route miles, and the loss of 67,700 British Rail jobs, with an objective of stemming the large losses being incurred during a period of increasing competition from road transport and reducing the rail subsidies necessary to keep the network running. The second report identified a small number of major routes for significant investment. Such was the scale of these cuts that the programme came to be colloquially referred to as the Beeching Axe, though the 1963 report also recommended some less well-publicised changes; including a switch to the now-standard practice of containerisation for rail freight, and the replacement of some services with integrated bus services linked to the remaining railheads. Protests resulted in the saving of some stations and lines, but the majority were closed as planned. Beeching's name remains associated with the mass closure of railways and the loss of many local services in the period that followed. A few of these routes have since reopened. Some short sections have been preserved as heritage railways, while others have been incorporated into the National Cycle Network or used for road schemes. Others have since been built over, have reverted to farmland, or remain derelict with no plans for any reuse or redevelopment. Some, such as the bulk of the Midland Metro network around Birmingham and Wolverhampton, have since been incorporated into light rail lines.

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Kruonis Pumped Storage Plant (the KPSP) is located near Kruonis, Lithuania, 34 km (21 mi) east of Kaunas. Its main purpose is to provide grid energy storage. It operates in conjunction with the Kaunas Hydroelectric Power Plant. During periods of low demand, usually at night, Kruonis PSHP raises water from the lower Kaunas reservoir to the upper one using cheap surplus energy. The station is designed to have an installed capacity of 1,600 MW but only four 225 MW generators are currently operational. With a fully filled upper reservoir the plant can generate 900 MW for about 12 hours. The KPSP uses hydro-resources of artificial water pools existing at different geographical levels. The electricity from this power plant is supplied to a 330 kV electricity line to Elektrėnai, where the largest fossil fuel plant in Lithuania is operating, and Kaunas. During a surplus of electricity generation, the KPSP uses the surplus electricity to pump water from the lower pool to the upper pool. During an electricity output deficit, the Kruonis PSP operates as a regular hydro power plant, letting water flow from the upper pool to the lower pool to generate additional electricity. With a fully filled upper reservoir the plant can generate 900 MW for about 12 hours. Kruonis Plant is the only pumped-storage station in the Baltic states.The Kruonis PSP Industrial Park and Kruonis Technology Park were created as the location, infrastructure and low electricity price are attractive for data centers.A neighbourhood for workers of the Kruonis pumped storage plant plant was built in the 1980s and early 1990s in Elektrėnai, expanding this city of specialists in energetics by area and inhabitants roughly twice.

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Sodium-ion batteries (NIBs, SIBs, or Na-ion batteries) are several types of rechargeable batteries, which use sodium ions (Na+) as its charge carriers. In some cases, its working principle and cell construction are similar to those of lithium-ion battery (LIB) types, but it replaces lithium with sodium as the cathode material. Sodium belongs to the same group in the periodic table as lithium and thus has similar chemical properties. In other cases (such as aqueous Na-ion batteries) they are quite different from Li-ion batteries. SIBs received academic and commercial interest in the 2010s and early 2020s, largely due to the uneven geographic distribution, high environmental impact, and high cost of lithium. An obvious advantage of sodium is its natural abundance, particularly in saltwater. Another factor is that cobalt, copper and nickel are not required for many types of sodium-ion batteries, and more abundant iron-based materials work well in Na+ batteries. This is because the ionic radius of Na+ (116 pm) is substantially larger than that of Fe2+ and Fe3+ (69–92 pm depending on the spin state), whereas the ionic radius of Li+ is similar (90 pm). Similar ionic radii of lithium and iron result in their mixing in the cathode material during battery cycling, and a resultant loss of cyclable charge. A downside of the larger ionic radius of Na+ is a slower intercalation kinetics of sodium-ion electrode materials.The development of Na+ batteries started in the 1990s. After three decades of development, NIBs are at a critical moment of commercialization. Several companies such as HiNa and CATL in China, Faradion in the United Kingdom, Tiamat in France, Northvolt in Sweden, and Natron Energy in the US, are close to achieving the commercialization of NIBs, with the aim of employing sodium layered transition metal oxides (NaxTMO2), Prussian white (a Prussian blue analogue) or vanadium phosphate as cathode materials.Electric vehicles using sodium-ion battery packs are not yet commercially available. However, CATL, the world's biggest lithium-ion battery manufacturer, announced in 2022 the start of mass production of SIBs. In February 2023, the Chinese HiNA Battery Technology Company, Ltd. placed a 140 Wh/kg sodium-ion battery in an electric test car for the first time, and energy storage manufacturer Pylontech obtained the first sodium-ion battery certificate from TÜV Rheinland.

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The Volkswagen Up (stylized as Volkswagen up!) is a city car produced by the Volkswagen Group since 2011. It was unveiled at the 2011 International Motor Show Germany (IAA). Production of the Up started in December 2011 at the Volkswagen Plant in Bratislava, Slovakia. It is part of the part of the New Small Family (NSF) series of models, alongside the SEAT Mii and Škoda Citigo which are rebadged versions of the Up, with slightly different front and rear fascias. The SEAT and Škoda versions were manufactured in the same factory, before being withdrawn from sale in 2021 and 2020 respectively. Production of the Up ended in October 2023. A battery electric version, called E-up, was launched in autumn 2013.

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The technology adoption lifecycle is a sociological model that describes the adoption or acceptance of a new product or innovation, according to the demographic and psychological characteristics of defined adopter groups. The process of adoption over time is typically illustrated as a classical normal distribution or "bell curve". The model indicates that the first group of people to use a new product is called "innovators", followed by "early adopters". Next come the early majority and late majority, and the last group to eventually adopt a product are called "Laggards" or "phobics." For example, a phobic may only use a cloud service when it is the only remaining method of performing a required task, but the phobic may not have an in-depth technical knowledge of how to use the service. The demographic and psychological (or "psychographic") profiles of each adoption group were originally specified by agricultural researchers in 1956: innovators – had larger farms, were more educated, more prosperous and more risk-oriented early adopters – younger, more educated, tended to be community leaders, less prosperous early majority – more conservative but open to new ideas, active in community and influence to neighbors late majority – older, less educated, fairly conservative and less socially active laggards – very conservative, had small farms and capital, oldest and least educatedThe model has subsequently been adapted for many areas of technology adoption in the late 20th century, for example in the spread of policy innovations among U.S. states.

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