Hermann von Helmholtz developed the first practical ophthalmoscope, among his many other scientific achievements. * Image: Hulton-Deutsch Collection / Corbis * 1850: German physician Hermann von ...
Best known for his study of electricity, Helmholtz also was a pioneer in the study of color. He extended the theory of Young that color could be represented by combinations of only three colors, as ...
A curious cloud photographed over Smith Mountain in Virginia this week looks more like something out of a fairytale or painting than it does in real life — and the science behind the formation is ...
John Carmody: I'm always amazed by the energy of the great figures of the 19th century. They must have worked non-stop to produce so much. Wagner not only wrote all of those long and very thorough ...
Clouds resembling breaking waves in the ocean are unusual and beautiful, and they've occurred on at least two occasions in recent months in Pacifica, less than 10 miles south of San Francisco, ...
Though he was considered a scientific colossus well into the 20th century, Hermann von Helmholtz (1821-94) is now unfamiliar to many educated people, even those interested in science. Yet Sigmund ...
THE German original of this book appeared in 1903, and was reviewed at some length in NATURE of July 2 in the same year (vol. lxviii., p. 193). The work of translation is admirably done in every way, ...
I. EDUCATION AND PHYSIOLOGICAL WORK. THE third and last volume of Koenigsberger's biography of the great natural philosopher has now appeared. The whole work is worthy of its subject; the author made ...
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