A Digital Oz

Virtual reality: a computer-created environment that you can "enter" and manipulate. Its scientific applications range from planning the wars of the future to cleaning up nuclear plants. But those uses are a long way off. In the interim, VR is a hot new entertainment medium that may get hotter after people see New Line Cinema Corp.'s The Lawnmower Man, the first flick about virtual reality. It opens Mar. 6

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