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Virtual Private Network Services
Virtual may refer to: * Virtual image, an apparent image of an object (as opposed to a real object), in the study of optics * Virtual (horse), a thoroughbred racehorse * Virtual channel, a channel designation which differs from that of the actual radio channel (or range of frequencies) on which the signal travels * Virtual function, a programming function or method whose behaviour can be overridden within an inheriting class by a function with the same signature * Virtual machine, the virtualization of a computer system * Virtual meeting, or web conferencing * Virtual memory, a memory management technique that abstracts the memory address space in a computer * Virtual particle, a type of short-lived particle of indeterminate mass * Virtual reality (virtuality), computer programs with an interface that gives the user the impression that they are physically inside a simulated space * Virtual world, a computer-based simulated environment populated by many users who can create a pe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Virtual Image
In optics, the ''image'' of an object is defined as the collection of Focus (optics), focus points of Ray (optics), light rays coming from the object. A ''real image'' is the collection of focus points made by Vergence (optics), converging rays, while a virtual image is the collection of focus points made by backward extensions of Beam divergence, diverging rays. In other words, a virtual image is found by tracing real rays that emerge from an optical device (lens, mirror, or some combination) backward to perceived or apparent origins of ray divergences. There is a concept ''virtual object'' that is similarly defined; an object is virtual when forward extensions of rays converge toward it. This is observed in ray tracing for a multi-lenses system or a diverging lens. For the diverging lens, forward extension of converging rays toward the lens will meet the converging point, so the point is a virtual object. For a (refracting) lens, the real image of an object is formed on the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Virtual World
A virtual world (also called a virtual space or spaces) is a Computer simulation, computer-simulated environment which may be populated by many simultaneous users who can create a personal Avatar (computing), avatar and independently explore the virtual world, participate in its activities, and communicate with others. These avatars can be textual, graphical representations, or live video avatars with auditory and touch sensations. Virtual worlds are closely related to mirror worlds. In a virtual world, the User (computing), user accesses a computer-simulated world which presents Perception, perceptual stimuli to the user, who in turn can manipulate elements of the modeled world and thus experience a degree of Immersion (virtual reality)#Presence, presence. Such modeled worlds and their rules may draw from reality or fantasy worlds. Example rules are gravity, topography, animal locomotion, locomotion, real-time computer graphics, real-time actions, and communication. Communicati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Virtuality (other)
Virtuality is the quality of having the attributes of something without sharing its (real or imagined) physical form. Virtuality may also refer to: Technology * Virtuality (gaming), a family of virtual reality arcade machines * Virtuality (software design), a concept of software design proposed by Ted Nelson * Reality–virtuality continuum, a concept in computer science * Augmented virtuality, the merging of real-world objects into virtual worlds *Real Virtuality, a proprietary computer game engine developed by Bohemia Interactive Other * Virtuality (philosophy) * Virtuality (song), by Rush *"Virtuality", a song by VBirds * ''Virtuality'' (film), a pilot for a science-fiction TV show that was ultimately not commissioned See also * Virtual (other) {{disambig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Things Described As Virtual
In various contexts, things are often described as "virtual" when they share important functional aspects with other things (real or imagined) that are or would be described as "more real". These include the following: Computing * Virtual airline * Virtual appliance * Virtual artifact * Virtual community * Virtual function * Virtual inheritance * Virtual intelligence * Virtual machine *Virtual memory *Virtual reality *Virtual world Education and business * Virtual business * Virtual economy * Virtual education * Virtual learning environment * Virtual museum * Virtual school * Virtual team * Virtual tradeshow * Virtual university * Virtual volunteering * Virtual water * Virtual workplace Entertainment and recreation * Virtual actor * Virtual art * Virtual band * Virtual character (other) * Virtual cinematography * Virtual concert * Virtual event * Virtual host * Virtual humans * Virtual influencer * Virtual sex * Virtual studio * Virtual YouTuber Mathematics, physics, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Virtual Community (other)
A virtual community is an online social network. It may also refer to: * Online community, whose members interact with each other primarily via the Internet * Virtual community of practice, a community of practice that is maintained online * '' The Virtual Community'', a 1993 book by Howard Rheingold * Virtual business, which employs electronic means to transact business * Virtual reality, a simulated experience * Virtual scientific community, a group of scientists who share resources over the internet * Virtual team, individuals who work together from different geographic locations * Virtual world, a computer-simulated environment See also * * * List of virtual communities This is a list of Wikipedia articles about virtual communities. Benchmark virtual communities * Usenet, one of the original decentralized, distributed discussion group architectures. * Bulletin board system, BBS: WELL (virtual community), The W ... ** List of virtual communities with more than 1 m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Exit Pupil
In optics, the exit pupil is a virtual aperture in an optical system. Only ray (optics), rays which pass through this virtual aperture can exit the system. The exit pupil is the image of the aperture stop in the optics that follow it. In a optical telescope, telescope or compound microscope, this image is the image of the Objective (optics), objective element(s) as produced by the eyepiece. The size and shape of this disc is crucial to the instrument's performance, because the observer's eye can see light only if it passes through the aperture. The term ''exit pupil'' is also sometimes used to refer to the diameter of the virtual aperture. Older literature on optics sometimes refers to the exit pupil as the ''Ramsden disc'', named after English instrument-maker Jesse Ramsden. Visual instruments To use an optical instrument, the entrance pupil of the viewer's eye (the image of the pupil, anatomical pupil as seen through the cornea) must be aligned with and be of similar size to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blitzchung Controversy
In October 2019, United States, American video game developer Blizzard Entertainment punished Ng Wai Chung () (known as Blitzchung), a Hong Kong esports player of the online video game ''Hearthstone (video game), Hearthstone'', for voicing his support of the 2019–2020 Hong Kong protests during an official video game live streaming, streaming event. Blizzard also terminated their contract with the two livestream presenters who were interviewing Blitzchung. The public's response, which included a boycott and a letter from United States Congress representatives to Activision Blizzard, prompted Blizzard to reduce the punishment, but not to eliminate it. Events Banning of Ng Wai Chung On October 6, 2019, during the ''Hearthstone Grandmasters'' streaming event in Taiwan, Ng Wai Chung, a professional ''Hearthstone'' player and resident of Hong Kong known as "Blitzchung", was being interviewed following his match, during which he donned a mask similar to those worn by protester ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Animal X (band)
Animal X was a Romanian band awarded at MTV Europe Music Awards, with more than 10 years of musical experience. Their eight studio albums include such hits as "N-am crezut", "Pentru ea", "Fără tine", "Mai mult ca oricand", "Sa pot ierta", "Baieti derbedei", "Balada", and "Nisip purtat de vant". Band members * Şerban Miron Copot (Hyena) - July 2, 1981 - vocals * Laurenţiu Penca (Worm) - September 5, 1983 - voice2, synth * George Valentin Belu (Martian Boy) - July 28, 1983 - guitar * Lazar Cercel (King Goat) - November 28, 1981 - bass * Alexandru Ivanus (Cricket) - September 29, 1986 - drums * Alexandru Salaman (Lizzard) - February 8, 1982 – 2010 - voice Performances *1999 - May 15 – first official appearance on local TV in Constanța, Animal X is made up by Hyena, Worm and Lizard *2000 – First album release, named “Animal X” *2000 - “N-am crezut” (Can’t Believe) is the first Romanian song to stay in Top100 for 18 weeks *2000 - “3rd Millennium” tour – ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Virtual Reality
Virtual reality (VR) is a Simulation, simulated experience that employs 3D near-eye displays and pose tracking to give the user an immersive feel of a virtual world. Applications of virtual reality include entertainment (particularly video games), education (such as medical, safety, or military training) and business (such as virtual meetings). VR is one of the key technologies in the Reality–virtuality continuum, reality-virtuality continuum. As such, it is different from other digital visualization solutions, such as augmented virtuality and augmented reality. Currently, standard virtual reality systems use either virtual reality headsets or multi-projected environments to generate some realistic images, sounds, and other sensations that simulate a user's physical presence in a virtual environment. A person using virtual reality equipment is able to look around the artificial world, move around in it, and interact with virtual features or items. The effect is commonly creat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Virtual (horse)
Virtual (foaled 10 May 2005) is a thoroughbred racehorse who won the Lockinge Stakes at Newbury in 2009. Virtual is a bay horse who was sired by Pivotal out of Virtuous. He was bred and owned by Cheveley Park Stud and trained by John Gosden at Newmarket, Suffolk Newmarket is a market town and civil parish in the West Suffolk (district), West Suffolk district of Suffolk, England, 14 miles west of Bury St Edmunds and 14 miles northeast of Cambridge. In 2021, it had a population of 16,772. It is a global .... He ran fourteen times in a career that lasted from September 2007 to October 2009 and won five times. He gained his most important win in the 2009 Lockinge Stakes when he beat Alexandros by a nose, ridden by Jimmy Fortune. References 2005 racehorse births Thoroughbred family 6-e Racehorses bred in the United Kingdom Racehorses trained in the United Kingdom {{Racehorse-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Virtual Particle
A virtual particle is a theoretical transient particle that exhibits some of the characteristics of an ordinary particle, while having its existence limited by the uncertainty principle, which allows the virtual particles to spontaneously emerge from vacuum at short time and space ranges. The concept of virtual particles arises in the perturbation theory (quantum mechanics), perturbation theory of quantum field theory (QFT) where interactions between ordinary particles are described in terms of exchanges of virtual particles. A process involving virtual particles can be described by a schematic representation known as a Feynman diagram, in which virtual particles are represented by internal lines. Virtual particles do not necessarily carry the same mass as the corresponding ordinary particle, although they always conserve energy and momentum. The closer its characteristics come to those of ordinary particles, the longer the virtual particle exists. They are important in the ph ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
