Karl Marbe's color variator
15 x 50 x 15 cm (h x w x d)
3D-Animation

Karl Marbe developed and built this color variator around 1893/94 during a research stay with Wilhelm Wundt in Leipzig.
It was the first apparatus of its kind that made it possible to change the proportions of the colors during rotation.

Exhibited by:

The Center for the History of Psychology presents:

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Letter of Carl Stumpf on the 1st volume of his Tonpsychologie 1882
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Rector Stumpf about 1908
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Letter from R.H. Lotze to Carl Stumpf - December 1869
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