File:Storia dei monumenti del reame delle Due Sicilie (1846) (14580588050).jpg

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Identifier: storiadeimonumen01cava (find matches)
Title: Storia dei monumenti del reame delle Due Sicilie
Year: 1846 (1840s)
Authors: Cavagna Sangiuliani di Gualdana, Antonio, conte, 1843-1913, former owner. IU-R
Subjects: Micheletti, Pietro Volpicella, Scipione, 1810-1883 Corsi, Vencenzo Art
Publisher: Napoli : Stamperia e cartiere del Fibreno
Contributing Library: University of Illinois Urbana-Champaign
Digitizing Sponsor: University of Illinois Urbana-Champaign

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lo-cinquaiita piedi al più:per conseguenza lo Specchio Ustorio diBuffon, avrebbe potuto sostituirsi iquello di Archimede. Ma disgrauat*mente, lo accomodar onesto Specchio aisuo ufficio , era opera lunga e malage-vole) e si richiedeva almeno una merizora di tempo, per adattarlo alle diffe-renti distanze; avuto riguardo a tale in-conveniente, il Problema meccanico ii>nera a sufficienza risoluto.« M. Robertson, a cui la Fisica devela invenzione di molti ingegnosi stru-menti , prosegui le esperienze di Buf-fon , e si applicò particolarmente allaricerca di un meccanismo semplice, colmezzo del quale si può a piacere cam-biare al momento il foco dello SpecchioUstorio. E dopo una serie di tentativipiù o meno felici, si ottenne la combi-nazione seguente : « Dispose, egli, tutti i suoi Specchi so-pra uno slesso piano, in modo di for-mare molte circonferenze concentriche.« Ciascuno Specchio è mobile su dunasse, ciò che permette dinclinarlo versoil centro. Evvi in olire un manico, so-
Text Appearing After Image:
UN iOF NOTE 135 « lietamente fisso dalla parte opposta. Tut-« ti i manichi sono ristretti nelle incava-« ture, praticate sopra un piano circolare« parallelo a quello dello Specchio Uslo-« rio. Se si gira questo piano da una par-tì te, o dallaltra, la inclinazione delle in-« cavature, che è più grande ne cerchi« più lontani del centro di quello, che lo« sia negli altri più prossimi ad esso, for-« zera i manichi degli Specchi a prendere« una posizione più o meno inclinata, in« modo da mantenerli sempre in una si-« tuazione relativa, che li dirige verso il« foco comune. Il maniglione fisso sullas-« se delta macchina, basta per cangiare« immantinente la posizione del foco ; edte in tal modo si può mettere lo Specchio« Ustorio, in tale posizione da dare ai rag-« gi concentrati la direzione che si vuo-« le; in seguito allontanando, o avvici-« nando il foco se ne dirige lazione so-« pia loggetto che si vuol bruciare. te Oggi non è più possibile, dimpiega-ti re lo

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Flickr tags
InfoField
  • bookid:storiadeimonumen01cava
  • bookyear:1846
  • bookdecade:1840
  • bookcentury:1800
  • bookauthor:Cavagna_Sangiuliani_di_Gualdana__Antonio__conte__1843_1913__former_owner__IU_R
  • booksubject:Micheletti__Pietro
  • booksubject:Volpicella__Scipione__1810_1883
  • booksubject:Corsi__Vencenzo
  • booksubject:Art
  • bookpublisher:Napoli___Stamperia_e_cartiere_del_Fibreno
  • bookcontributor:University_of_Illinois_Urbana_Champaign
  • booksponsor:University_of_Illinois_Urbana_Champaign
  • bookleafnumber:160
  • bookcollection:university_of_illinois_urbana-champaign
  • bookcollection:americana
Flickr posted date
InfoField
28 July 2014



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current15:01, 15 October 2015Thumbnail for version as of 15:01, 15 October 20152,304 × 1,618 (942 KB)SteinsplitterBot (talk | contribs)Bot: Image rotated by 90°
12:07, 15 October 2015Thumbnail for version as of 12:07, 15 October 20151,618 × 2,316 (948 KB) (talk | contribs)== {{int:filedesc}} == {{information |description={{en|1=<br> '''Identifier''': storiadeimonumen01cava ([https://commons.wikimedia.org/w/index.php?title=Special%3ASearch&profile=default&fulltext=Search&search=insource%3A%2Fstoriadeimonumen01cava%2F fin...

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