Three Dimensions, No Funny Glasses
Watching 3-D movies wasn't always fun. For years, you had to don glasses with red and green lenses that promised crude images and a cross between a popcorn hangover and a migraine. Lately, companies such as Imax Systems Corp. in Toronto have refined this approach with liquid-crystal goggles. But Imax's short films are costly to produce, and they've been relegated to science museums and exhibitions.
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