Friday, September 20, 2013

Project 43

Today I spent some time revamping my electronics books, which I am combining (and augmenting) in a single 300-page volume. At this moment, I have reached project 43 (of about 200) -- an unusual one, and it is obliquely related to the Church. In 1826, Benedict Prévost, a monk, noted a "heavenly light" on his fingers as he waved his hands about in the cloisters. What he had discovered was "subjective colours" -- an effect that is usually demonstrated today with Benham's Top. In short, pulsed monochromatic light produces the illusion of colour. This can be replicated electronically, and quite strikingly: which is project 43.

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