Schott, Gaspar
,
Mechanica hydraulico-pneumatica. Pars I. Mechanicae Hydraulico-pnevmaticae Theoriam continet.
,
1657
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vere pyrio ex auro confecto, quod aurum fulminans appellat Ca</
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ſtellus, & aurum volatile Crollius. </
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>Eſt id nihil aliud quàm au
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rum calcinatum aquâ forti ſeu regiâ, ſale armoniaco, & oleo tar
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tari præcipitati. </
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>Hæc calx quàm primùm ſentit etiam calorem
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ignis, concipit ſponte ſua flammam, & in auras abit, cum ingenti
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fragore & ſtrepitu: & ſi vel vnum aut alterum huius pulveris gra
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num cultro impoſueris, & candelam infrà applicueris, vtinca. </
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leſcat; tantum edit fragorem, ac ſi magnam exploſiſſes bombar
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dam. </
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>Facit autem effectum contrarium ordinario pulveri pyrio,
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quia non ſurſum, ſed deorſum tendit; vnde ſerupulus vnicus hu
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ius volatilis auri poſitus ſupra laminam ferream
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modicæ craſ
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ſitiei, & carbone deſuper applicato accenſus, penetrat & per
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foratipſam laminam. </
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Aurum ful
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minans.
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>Nolo hîc ommittere aliud rarefactionis exemplum, quo
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ego ipſe multis in locis, coram viris etiam Principibus, exiguâ
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machinulâ non exiguum excita vi fragorem, bombardulæ mi
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noris fragori prorſus æqualem ac ſimilem. </
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nucis avellanæ magnitudine, aut etiam minores, fieri curavi ad
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lampadem Romæ à quodam Germano artifice, vitrum in omnes
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colores omnes que figuras florum, fructuum, avium, animalium
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omnis generis, jcuncularum quarumlibet affabrè elaboratarum
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efformante, idemque in ſubtiliſſima fila ad rotam
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diducente. </
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>In eas vitreas Sphærulas acetum, aut nitratum ſa
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lem aquâ diſſolutum ac liquefactum infundi iuſfi, & ad medieta
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tem repleri, ac deinde hermeticè claudi ad eandem lampadem. </
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Harum ſphærularum vnam ſi carbonibus non nimiùm accenſis,
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aut calidis cineribus (vt paulatim calefiat) impoſueris; rarefit
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ſpiritoſa materia intus clauſa, & majorem quærens locum, poſt
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ſpatium circiter temporis quo Pſalmus 50.
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Miſerere mei Deus,
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re
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citari poteſt, tanto cum impetu ac fragore viam ſibi aperit, vt
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non tantùm vitrum in mille minutiſſimas particulas diffringat,
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ſed cineres etiam & carbones toto conclavi diſſipet, nullius
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damno, niſi ſi quis vultum propè applicet. </
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<
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Romæ coram Sereniſſimi Holſatiæ Ducis Filio primogenito </
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