Casati, Paolo
,
De igne dissertationes physicae
,
1686
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De Flamma & Fumo.
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tem flammam videmus; </
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<
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xml:space
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">nam toto eo tempore tam ingens multi-
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tudo Spirituum, Salium Volatilium, atque partium Sulphurea-
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rum ſeparata eſtà partibus fixis, vt illis libertatem nactis non ſatis
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ſit per ligni meatus diſcurrere, ſed confertim ex illis anguſtijs magnâ
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copiâ exiliant vnâ cum vapore fumi.</
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<
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">Hanccine Philoſophiam edocti ſunt, qui ad focum acce-
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dentes toleranter expectare nequeunt flammæ eruptionem? </
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<
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">ſiqui-
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dem aut pede impoſito ſarmentis, aut batillo ferreo, illa premunt
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atque ſuccutiunt, vt eiuſmodi motu atque flexione apertis ligneis
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poris, omni cunctatione remotâ, confertim erumpant in flammam
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agglomerati intus igniculi.</
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<
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<
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xml:space
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<
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xml:space
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">poſtmodum
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tentatum eſt, an cum naturâ connexa ſint, ſi eadem ſæpiùs con-
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tingant: </
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<
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">demum notatio Naturæ & </
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<
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xml:space
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">animaduerſio peperit artem
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ſeu ſcientiam, qua quis felici exitu vſus cœteris exemplo fuit, quod
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imitarentur quantumlibet cauſæ ignari, nec velleuiſſimo ad phi-
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loſophandum ſtudio concitati: </
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<
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xml:space
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">adeò autem frequens eſt ignis ac-
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cendendi vſus, vt ad exſtimulandam flammam ſarmenta concute-
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re diſcant vel pueri, omnem maiorum motum obſeruantes. </
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<
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ma itaque illa flammæ eruptio, nec ſine ſtrepitu, poſtquam ex
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ſubiectis prunis ſatis incaluerint ligna, manifeſtum facit impetum
<
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proſilientium igniculorum, quos alij ſubinde atque alij conſe-
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quuntur, quandiu ea ſuppetit copia igniculorum à particulis fi-
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xis diſiunctorum, vt confertim erumpant; </
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<
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xml:space
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">illâ autem imminutâ
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ceſſat flamma, & </
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<
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">reliquæ fiunt prunæ, diſcurrentibus circa ſuper-
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ficiem ſulphureis particulis, quarum aliquæ licèt cum Spiritibus
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auolent, non tamen tot ſunt, neque eo impetu erumpunt, vt
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flammam conſtituant. </
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<
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">Quod ſi craſſioribus lignis, extinctâ flam-
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mâ, detrahantur partes extimæ, quæ in carbonem tranſierunt, & </
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quamuis accenſæ impedimento erant, neigniculi liberè confertim
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erumpere poſſent, etiamſi intimas ligni partes penetrauerint, fa-
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cilè iterum accenditur flamma: </
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<
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xml:space
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">id quod manifeſtè conſtat, quan-
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do ferro aut baculo validiùs attritus ſtipes accenſus innumerabiles
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eiaculatur ſcintillas, & </
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<
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">demum flammam emittit, apertis valido
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illo tritu poris, ex quibus erumpunr igniculi. </
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<
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xml:space
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">Hinc ſi plura ſint
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proxima ligna ignita, flammam multo diutiùs fouent; </
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<
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">quia ex
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vno ligno exilientes igniculi in aliud lignum incurrunt, qui cœte-
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roqui in auras obirent, & </
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<
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