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・ Raphael Cotoner
・ Raphael Cox
・ Raphael Coxie
・ Raphael Cruz
・ Raphael Custos
・ Raphael David Levine
・ Raphael Davis
・ Raphael de Oliveira
・ Raphael Debono
・ Raphael Diaz
・ Raphael Dinyando
・ Raphael Douady
・ Raphael Draccon
・ Raphael E. Freundlich
・ Raphael Edereho
Raphael Eduard Liesegang
・ Raphael Ensemble
・ Raphael Eristavi
・ Raphael Evers
・ Raphael Falk
・ Raphael Fellmer
・ Raphael Fernandes
・ Raphael Finkel
・ Raphael Friedeberg
・ Raphael Glorieux
・ Raphael Gray
・ Raphael Grinage
・ Raphael Gualazzi
・ Raphael Guzzo
・ Raphael H. Cohen


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Raphael Eduard Liesegang : ウィキペディア英語版
Raphael Eduard Liesegang

Raphael Eduard Liesegang () (November 1, 1869 – November 13, 1947) was a German chemist, photographer and entrepreneur born in Elberfeld.
He is known for his work on Liesegang rings. He also helped develop the methods of capillary analysis, a precursor to paper chromatography, published a paper on the possibility of television (years before the discovery of the electron), contributed to chromosome theory, worked on properties of aerosols and gelatins, the origins of silicosis, the role of carbon dioxide in plant life and the mechanism of both black and white and colour photographic processes.
The son of a painter (then later photographer), Liesegang longed for an artistic career but lacked the ability to draw or paint. His father would later invent a camera and photography would go on to be one of Liesegangs passions. It was research into photographic emulsions that initially lead to his personal discovery of Liesegang rings (note he himself was not the first person to observe the effect but they bear his name since he devoted so much time to researching them.)
As an heir to the founder of Ed. Liesegang oHG, Düsseldorf, he also owned a factory producing photographic paper and chemicals. Ed. Liesegang oHG later expanded into optics manufacturing, and sold its photochemical interests.
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