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What is 3D, as in movies shown in 3D?

Asked by jazzjeppe (2598points) January 7th, 2010

I read somewhere that it won’t be long until we can buy television sets that ‘handle 3D’. I don’t get it – I thought 3D as in movies where you need special glasses, aren’t ‘real’ 3D, but more likely something that fools the brain to see the image in a specific way. Isn’t it about colours or something that combined with special coloured glasses conjures a ‘3D effect’? How would that work on TV? Would it be a TV that shows the 3D effect without the need of glasses? Or how would it work?

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