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Virtual world that allows people to learn about ancient history is actually holding a live music festival in the virtual space to motivate new users to interact and to entice would-be users to download the software the game requires

Do 3-D interfaces cause headaches? Potential trouble for immersive visuals as 3-D interfaces require unnatural eye movements which may result in visually induced motion sickness. More popcorn please.

I didn't end up with any ill effects, but I noticed that your inability to focus on objects on different levels of the 3D plane is unnerving. Often there would be interesting flora in the foreground, and because it's in 3D, you want to look at it but you can't focus your eyes on it.

Healthcare facilities are discovering that practicing in the virtual world can have major benefits in real life. Doctors, nurses and students are using online community to learn how to cope with crises, boost clinical skills and make their facilities more efficient.

OK read, great pics!

unclear why virtual classrooms would aid disabled