LightCoder is an audience participatory installation. the main installation is an interactive light display. the audience spins the dial on the top of the installation. the LightCoder will project the light pulse into short pulses(dot) and long pulses (dash) , which is Morse Code.
if the audience wants to know what the sequence means, then he or she can write down the sequences and combinations of short and long pulses on a postcard.
one side of the postcard/codebook displays Morse Code as a reference (codebook) . based on the sequence, the audience can figure out the secret meanings that they decided to ask the light coder to display. all 60 code sequences come from the list of sensitive words as a result of the Chinese great fire wall.

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