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Author photo. Deutsche Post der DDR / Wikimedia Commons

Deutsche Post der DDR / Wikimedia Commons

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Born in Wurttemburg, Germany, Johannes Kepler was the son of a soldier of fortune who eventually deserted his family. Kepler is widely known for his three laws of planetary motion. Kepler began to think about astronomy and planetary motion as a schoolteacher in Graz, Austria and published his first work, Mysterium Cosmographicum, in 1596. He became an apprentice to Tcho Brahe, whose collection of astronomical observations was the best of its kind. Kepler's work on Mars, in which he tried to fit a theory to the observations, led to his discovery that planetary motion is elliptical rather than circular. Kepler's life was somewhat chaotic as a result of the repeated harassment of Protestant teachers in predominantly Catholic Austria. Some of his ideas about cosmic harmonies, such as the theory that the spacing of planetary orbits is related to the five regular polyhedrons, were incorrect. Yet his basic approach of seeking a broad sense of order and harmony in the world led to the discovery of mathematical regularities involved in planetary motion, and ultimately, to the elegance of Sir Isaac Newton's laws of motion. Kepler's Somnium, a fictional account of a voyage to the moon, is cited by historians of rocketry as an early work of science fiction that might have stimulated interest in space travel. (Bowker Author Biography) — biography from Harmonies of the World… (more)
Britannica Great Books: Ptolemy, Copernicus, Kepler (Contributor) 434 copies, 2 reviews
Astronomia Nova 36 copies
The Six-Cornered Snowflake 28 copies, 1 review
El secreto del universo 27 copies, 1 review
Optics 9 copies
Astronomiae Pars Optica 2 copies, 1 review
Mathematische Schriften 1 copy, 1 review
Dioptrika 1 copy
On The Shoulders Of Giants (Contributor) 1,126 copies, 7 reviews
The Watershed: A Biography of Johannes Kepler (Associated Name) 156 copies, 4 reviews
Science fiction through the ages 1 (Contributor, some editions) 13 copies
Johannes Kepler (Associated Name) 9 copies
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