Q. What is the current status of web-based VR using VRML?

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Q. In command and control situations, how do users typically interact with the physical world?

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Q. What is the primary purpose of flight simulators in VR applications?

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Q. How are cockpit windows replaced in flight simulators?

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Q. What is one of the key benefits of VR in military applications?

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Q. Why is the military particularly interested in VR technology?

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Q. What is the significance of VR technology in flight simulators for pilot training?

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Q. What is the defining characteristic of augmented reality systems?

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Q. How are head-up displays (HUDs) in aircraft and automobiles an example of augmented reality?

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Q. What is the purpose of semi-transparent goggles in augmented reality?

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Q. How does augmented reality create a stronger sense of two worlds meeting?

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Q. What is a challenge in augmented reality systems related to the alignment of physical and virtual worlds?

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Q. How does a class of augmented reality systems project images onto the real world?

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Q. What problem is addressed by calibrating an augmented reality system that projects images onto a physical surface?

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Q. How does image recognition contribute to augmented reality?

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Q. What is the purpose of generating virtual balls in an augmented reality system?

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Q. How does the alignment of the physical and virtual worlds influence the success of an augmented reality system?

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Q. What has been the most extensive use of VR applications so far?

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Q. What concept allows for the creation of worlds with arbitrary physics and behaviors in VR?

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Q. How might VR be applied in the field of medicine?

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