Differing from virtual reality in which a user is completely immersed in a computer-generated world, Augmented Reality simply enhances the user's view of the real world. The video cameras capture images of the real world, while computers create graphics, instructions, or other enhancements to superimpose on the real world images. The computers can range from regular desktop computers to wearable computers that strap onto users like backpacks. The computers are then hooked up to video cameras and head-mounted displays so that they can receive and integrate information from these various sources. People using this type of HMD are really looking at real-world images with virtual images inserted into their field of vision.
Personal transportation is truly a marvel of the twentieth century. . .
Roller coasters can exert G forces greater than one. . . Virtual images are superimposed on views of the real world. . . A feeling that many describe as one similar to flying . . . A bar code is a printed series of parallel modules . . . It plays a crucial role in the operation of computers . . .