Casati, Paolo
,
De igne dissertationes physicae
,
1686
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Diſſertatio Tertia.
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ſit? </
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<
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<
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xml:space
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">Statim reſpondebo, ad retinendam auiculam nimium
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eſſe; </
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<
s
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xml:space
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">ad firmandam nauim anchorâ, inualidum eſſe & </
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<
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">exilem; </
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<
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ſolitariè conſideretur, & </
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<
s
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echoid-s1460
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xml:space
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">ſimpliciter, quin ad aliquid vinciendum
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referatur, neque validum eſſe, neque inualidum: </
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<
s
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xml:space
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">ſicut enim
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validum aut inualidum comparatè dicitur, quatenus ad aliud
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refertur, ita pariter graue aut leue non dicitur niſi habitâ ratio-
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ne ordinis corporum in hoc Orbe iuxta cuiuſque naturam diſpo-
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ſitorum. </
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<
s
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xml:space
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">Nam quod vnicuique corpori grauitas tribuatur, vt
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omnia deorſum connitentia preſsè cohæreant, neque relictis ina-
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nitatibus difiungantur; </
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<
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xml:space
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">prorſus inutile mihi videtur, & </
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">ſine cau-
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sâ confictum: </
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<
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xml:space
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">obidipſum, videlicet, quia Naturæ author Deus
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Firmamento concluſit inferiora omnia nihil inane relinquens, & </
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<
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ita corpora ſibi inuicem ſuâ mole obſiſtunt, vt à duobus ſpatium
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idem occupari nequeat, tam preſsè cohærent omnia, vt nullâ vir-
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tute naturali fieri poſſit, quin cohæreant; </
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<
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xml:space
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">adeoque nullo conatu
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indigent, ne diſiungantur, quaſi, niſi inferiora à ſuperioribus
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vrgerentur, relinquendus eſſet hiatus. </
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<
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xml:space
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">Quinimmo tam longè
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abſunt corpora ab iſto preſſu, nequa inanitas interijciatur, vt
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potiùs ſibi viciſſim manum inijciant, ſeque inuicem retineant,
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non vrgeant, aut premant. </
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<
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">Quare quid ſit aërem Mercurio ſu-
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biecti vaſis inſidentem grauitare, & </
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<
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">vrgere, fateor, adeò hebes
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ſum, vt non intelligam: </
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<
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xml:space
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">quid enim conetur aër infra Mercurium
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deſcendere, infra quem ſi eſſet, vt Naturæ ordo redintegraretur,
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oporteret ſurſum conniti.</
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<
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">Dand. </
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">At aër iſte telluri circumfuſus, halitibus aqueis, ter-
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reniſque puluiſculis plenus, grauis eſt; </
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<
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xml:space
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">ſpiritus verò, quem mon-
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tium incolæ ducunt, defęcatus eſt, & </
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">leuis.</
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<
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">Maur. </
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">Si ſingulæ iſtius aëris partes abſolutè accipiantur, & </
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in loco ſuo, nulla facultatem habet indè ſponte ſuâ diſcedendi;
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</
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<
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">ac proinde grauis non eſt aër, qui naturalis quietis ſedem nactus
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non poteſt deſcendere, neque leuis, qui nequit aſcendere; </
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<
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parium comparatio nec elationem habet, nec ſubmiſſionem. </
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<
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">Quod
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ſi comparatè ſumantur & </
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">præpoſterè inter ſe diſpoſiti halitus, aut
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in alieno loco intermedio collocati, tunc alter grauis eſt, alter
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leuis. </
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<
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">Sed in experimento, de quo ſermo eſt, ordine poſitas
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atmoſphæræ partes, non verò perturbatas intelligimus, videli-
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cet craſſas inferiores, tenues autem ſuperiores; </
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<
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">adeòque non ab
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his illæ vrgentur, aut premuntur. </
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