> cheap projectors that seem to alternate between red, green, and blue If you were curious, those would be single-chip DLP projectors: http://en.wikipedia.org/

> cheap projectors that seem to alternate between red, green, and blue If you were curious, those would be single-chip DLP projectors: http://en.wikipedia.org/wiki/Digital_Light_Processing http://en.wikipedia.org/wiki/Digital_Light_Processing