"Airplanes are interesting toys, but of no military value."
French General Ferdinand Foch, 1911
Virtual Reality (often abbreviated as VR) attempts to simulate a real environment by stimulating the user’s senses. The core of any VR experience is the visual aspect, as vision is a someone’s main way of interpreting the world around them. Computer graphics programs can be used to create such images for the user, such that the user can interpret the environment as being real. In addition to the visual aspect, VR systems stimulate other senses. Systems have been developed to adapt to a user’s kinesthetic senses, sense of touch, and even smells matching the virtual environment of the user.