Global Virtual Four Season School in The Foundations of Mathematics and Physics

This is happening everywhere, all year around, just because of the nature of actual Human Knowledge. Invited speakers: a bunch of people who all know what they're talking about.

On light and the nature of photographic process: Silver halide crystals only go off when exposed to light at certain frequencies, so the crystals have to be embedded in a glycerine matrix with layers of dye to make the film respond to visible light.


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See Joel Hamkins interviewed on About Logic.

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