Template:Selected anniversaries/December 21: Difference between revisions

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||1732: Johann Christian Wiegleb born ... druggist and early innovator of chemistry as a science.
||1732: Johann Christian Wiegleb born ... druggist and early innovator of chemistry as a science.
||1754: Louis-Bertrand Castel, vociferous opponent of Newtonian science, gave a demonstration of his ocular harpsicord, which corresponded colors with the musical tones. *VFR The ocular harpsichord had sixty small coloured glass panes, each with a curtain that opened when a key was struck. A second, improved model of the harpsichord was demonstrated for a small audience in December of 1754. Pressing a key caused a small shaft to open, in turn allowing light to shine through a piece of stained glass. Castel thought of color-music as akin to the lost language of paradise, where all men spoke alike, and he claimed that thanks to his instrument’s capacity to paint sounds, even a deaf listener could enjoy music. Pic.


||1805: Thomas Graham born ... chemist and academic.
||1805: Thomas Graham born ... chemist and academic.

Revision as of 08:29, 21 December 2018