Testing telescope optics of seventeenth-century Italy (Contributo in volume (capitolo o saggio))

Type

• Contributo in volume (capitolo o saggio) (Classe)
• Prodotto della ricerca (Classe)

Label

• Testing telescope optics of seventeenth-century Italy (Contributo in volume (capitolo o saggio)) (literal)

Anno

• 2010-01-01T00:00:00+01:00 (literal)

Alternative label

• Giuseppe Molesini (2010)
  Testing telescope optics of seventeenth-century Italy
  Amsterdam University Press, Amsterdam (Paesi Bassi) in The Origins of the Telescope, 2010
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• Giuseppe Molesini (literal)

Pagina inizio

• 271 (literal)

Pagina fine

• 280 (literal)

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• Amsterdam (literal)

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• http://www.aup.nl/do.php?a=show_visitor_book&isbn=9789069846156 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#titoloVolume

• The Origins of the Telescope (literal)

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• 12 (literal)

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• 10 (literal)

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• CNR - Istituto Nazionale di Ottica, Largo E. Fermi 6, 50125 Firenze, Italy (literal)

Titolo

• Testing telescope optics of seventeenth-century Italy (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#inCollana

• The Origins of the Telescope (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#isbn

• 978 90 6984 615 6 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#curatoriVolume

• Albert van Helden; Sven Dupré; Rob van Gent; Huib Zuidervaart (literal)

Abstract

• In the course of the last two decades, a significant part of the 17th Century telescope optics remaining in Italy (mainly at the Institute and Museum of the History of Science in Florence) has been submitted to optical tests in research laboratories, in order to assess the lens quality and retrieve any information that might be useful to science historians. The investigation is still in progress. A number of interesting results have already come to light, showing that the lens quality that could be obtained at that time was extraordinarily good; in particular, the \"broken objective lens\" of Galileo housed in Florence turned out to be almost perfect as to optical performance. Such a high quality was achieved both in terms of lens surface, figuring, and polishing, and in terms of purity and homogeneity of the glass material. In this paper, the most significant outcome of this research is reviewed, and results of recent measurements are reported. In particular, aspects related to the glass quality are discussed, pointing out the critical problem of glass homogeneity. Defective glass could not be detected until the lens was polished and tested, and even then the causes of failure could probably not be understood. Current analysis is devoted to find out the chemical composition and the physical properties of the glass material, as an aid to locating the lenses and the telescopes more precisely within their historical framework. (literal)

Editore

• Amsterdam University Press (Editore)

Prodotto di

• Sviluppo e caratterizzazione di dispositivi ottici per metrologia e sorgenti laser (MD.P03.020.001) (Modulo)

Autore CNR

• GIUSEPPE MOLESINI (Persona)

Insieme di parole chiave

• Keywords of "Testing telescope optics of seventeenth-century Italy" (Insieme di parole chiave)

Incoming links:

Autore CNR di

• GIUSEPPE MOLESINI (Persona)

Prodotto

• Sviluppo e caratterizzazione di dispositivi ottici per metrologia e sorgenti laser (MD.P03.020.001) (Modulo)

Editore di

• Amsterdam University Press (Editore)

Insieme di parole chiave di

• Keywords of "Testing telescope optics of seventeenth-century Italy" (Insieme di parole chiave)