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2018-05-27 14:39:09
KEPLER, Johannes.
Epitome astronomiae Copernicanae: usitatâ formâ quæstionum & responsionum conscripta, inque VII. libros digesta, quorum tres hi priores sunt de doctrina sphæricâ. Habes, amice lector, hac prima parte, præter physicam accuratam explicationem motus terræ diurni, ortusq[ue] ex eo circulorum sphæræ, totam doctrinam sphæricam nova & concinniori methodo, auctiorem, additis exemplis omnis generis computationum astronomicarum & geographicarum, quæ integrarum præceptionum vim sunt complexa.
Johann Planck; Georg Tampach 1618; 1622; 1621, Linz; Frankfurt. First edition, an immaculate copy, the finest we have seen, of the third of Kepler?s great trilogy of astronomical treatises, following Astronomia nova (1609) and Harmonice mundi (1619), in which he introduced his three laws of planetary motion. The Epitome ?ranks next to Ptolemy?s Almagest and Copernicus? De revolutionibus ? [It] is the first systematic complete presentation of astronomy to introduce the ideas of modern celestial mechanics founded by Kepler ? The title gives no inkling that Kepler had erected an entirely new structure on the foundation of the Copernican theory, that he had rescued the Copernican conception, at the time disputed and little believed, and helped it to break through by introducing his planet laws and by treating the phenomena of the motions physically? (Caspar, p. 297). ?This work [the Epitome] would prove to be the most important theoretical resource for the Copernicans in the 17th century. Galileo and Descartes were probably influenced by it? (Britannica). Kepler ?hypothesizes that force is needed to sustain motion and that hence some force must be acting on the planets. This force, he speculates, originates from the sun, can act over a vacuum, and may be magnetic. In contrast to many scientists of the time, Kepler believes much of space to be a vacuum? (Parkinson). ?One important detail is Kepler?s extension of his first two planetary laws to all the other planets [they originally applied only to Mars] as well as to the moon and the four satellites of Jupiter? (Johannes Kepler … [Click Below for Full Description]
Bookseller: SOPHIA RARE BOOKS [Koebenhavn V, Denmark]
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