"Castel theorized that vibrations produced color, just as they produced sounds. He concluded, therefore, that colors and sounds were analogous, which led him to attempt to develop the ‘ocular harpsichord.’" A 1771 engraving illustrating Castel’s theory of color. Via.

"Castel theorized that vibrations produced color, just as they produced sounds. He concluded, therefore, that colors and sounds were analogous, which led him to attempt to develop the ‘ocular harpsichord.’" A 1771 engraving illustrating Castel’s theory of color. Via.

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    I find it fascinating to think the idea of colour theory is a fairly young idea.
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