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| POSSEDUTO (se manca la collocazione vai al documento contenente) | |
| Accesso online: | https://brill.com/view/journals/nun/nun-overview.xml |
| Autore principale: | Zik, Yaakov.
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| Titolo: | Kepler and the telescope / Yaakov Zik. |
| Abstract: | In the Watershed: a Biography of Johannes Kepler (New York, Anchor Books Doubleday & Company Inc., 1960) Arthur Koestler wrote, "Apart from its strategical importance in the cosmological battle, the Conversation with the Star Messenger is without much scientific value..." (p. 193). He continued, "Kepler had instinctively felt the ring of truth in the Star Messenger, and that had settled the question for him" (194). Unfortunately, Kepler's Conversation has been largely neglected in current historical and philosophical scolarship as a source for Kepler's and Galileo's methodological and epistemological studies related to the telescope. Clearly, although Kepler's account was not quantitative and definitive in the absence of the sine law of refraction, it did lead him to the conclusion that one could construct a telescope by combining two convex lenses. On the other hand, the optical layout that Kepler suggested did not came into widespread use until the 1640s. Moreover, even after completing his Dioptrice Kepler was never able to construct either a Galilean or a Keplerian workable telescope. Kepler's optical thoughts, however , suggest some new aspects to be considered. In this respect, two periods of time are important: the time before Kepler had a Galilean telescope and the time after. Within this time frame, it may be instructive to follow Kepler's discussion and learn what he thought about the gadget of which many exemplars were manufactured as commodities for sale, and why, even after the completion of his Dioptrice, he failed to construct a workable telescope |
| Visionato in: | IMSS |
| In: |  Nuncius A. 21, fasc. 2 (2003), p. 481-514 |
| Discipline: | Ottica--Persone. Astronomia--Strumenti. |
| Persone: | Kepler, Johannes, 1571-1630. Galilei, Galileo, 1564-1642--Strumenti. Galilei, Galileo e Kepler, J. |
| Keyword: | Strumenti--Astronomia e Cosmografia. |
| Sudd. cronologiche: | Secolo XVII. |
| 000000916376 |
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