Most Web pages are written in a computer language called H-T-M-L, which stands for Hypertext Markup Language. For certain interactive applications, there's another language called V-R-M-L. This is Virtual Reality Markup Language. You've probably heard of Virtual Reality. It's the method computer's use to simulate actually being in a 3-D environment. As you move in the virtual world, trees and buildings will change positions to reflect your new position. V-R-M-L is commonly used in games that are played from a first-person viewpoint, but it's increasingly used as a teaching tool. Medical students can study how the body works by seeming to move through the bloodstream or brain. Engineers can learn the designs of machines by apparently moving through the working device. As internet and computer speeds continue to increase, so will the ability to deliver real-time V-R-M-L to your home computer.
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