Virtual reality (VR)

When we saw a dream we feel everything is real although its game of your mind but now we can feel the same real experiences in unreal environment of technology. Virtual technology is nothing but a dream only difference in real and virtual dream is we can create our own world and we can implement it when we are awake ,in real dreams mind do that work  for you.

Virtual reality is a term that applies to computer-simulated environments that can simulate physical presence in places in the real world, as well as in imaginary worlds. 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.

The simulated environment can be similar to the real world—for example, in simulations for pilot or combat training—or it can differ significantly from reality, such as in VR games. In practice, it is currently very difficult create a high-fidelity virtual reality experience, due largely to technical limitations on processing power, image resolution, and communication bandwidth; however, the technology's proponents hope that such limitations will be overcome as processor, imaging, and data communication technologies become more powerful and cost-effective over time.

Virtual reality is often used to describe a wide variety of applications commonly associated with immersive, highly visual, 3D environments.

Here are some VR technologies that work and that may yet point the way to truly successful virtual reality.

Anxiety Therapy

For years now, virtual environments have been used to treat anxiety problems with exposure therapy.

Military psychologists use simulated Iraq war situations to treat soldiers.

VR Training Programs

Virtual reality environments have also been used for training simulators. Flight simulator is a good example for VR training programs.

Multiplayer Online Gaming

One result of virtual-reality research is the existence of entirely separate virtual worlds. Commercial gaming worlds tend to focus on a singular fictional theme and consistently follow formal conventions such as character-focused avatars, progression through an interactive narrative storyline, and a series of competitive events

 Medical Procedures

Modern medicine has also found many uses for virtual reality. Doctors can interact with virtual systems to practice procedures or to do tiny surgical procedures on a larger scale

Project Natal

The latest entry in the virtual reality inspired gaming world is Project Natal, a new piece of technology under development now for the Xbox. Project Natal proposes a new way of interacting with games, and indeed with computer systems in general. In their demo video, they propose a system that requires no keyboard and no controller, where a user's voice and motions serve as their method for interacting with the system.

There are many more examples in real world about the virtual world which will change our life

by innovative powerful technologies in the real world for virtual world.