In The Overhead Projector: Don’t Overlook It (Part 1), I explained why it’s better to use a projector (be it an old-fashioned overhead or LCD) than to write on the board. Now we turn to how to use a ...
A large LCD is entirely unsuitable. Light (especially high intensity of the sort used for projection) makes heat. The more light that must be "filtered away" the more heat you must be able to transfer ...
Projector prices are low now, but it looks like some crazy people like to make their own from scrapped parts: modified 8″ LCD screens from cheap DVD players, chunky power converters, circuitry ...
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