Virtual reality (VR) is a technology which allows a user to interact with a computer-simulated environment, be it a real or imagined one. Most current virtual reality environments are primarily visual experiences, displayed either on a computer screen or through special stereoscopic displays, but some simulations include additional sensory information, such as sound through speakers or headphones, wired gloves and omnidirectional treadmills.

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Science Daily: News & Articles in Science, Health, Environment & Technology Breaking science news and articles on global warming, extrasolar planets, stem cells, bird flu, autism, nanotechnology, dinosaurs, evolution. The latest discoveries in astronomy, anthropology, biology, chemistry, climate & environment, computers, engineering, health & medicine, math, physics, psychology, technology, and more from the world's leading universities and research organizations. http://www.sciencedaily.com - [Read more]

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Second Life: Your World. Your Imagination. Second Life is a 3D online digital world imagined and created by its residents. http://secondlife.com/ - [Read more]

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