Casati, Paolo, De igne dissertationes physicae, 1686

Table of figures

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            <s xml:id="echoid-s1682" xml:space="preserve">
              <pb o="50" file="0062" n="62" rhead="Diſſertatio Tertia."/>
            non ſuo, aduersùs Mercurium, quaſi aduersùs fundum vaſis, grà-
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            uitare admiſerim, non continuò aquam in ſitulâ puteo immerſâ
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            grauitare permittam; </s>
            <s xml:id="echoid-s1683" xml:space="preserve">ſimilique ratione in Atmoſphærâ partes aë-
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            ris ſimili aëre circunfuſas omni niſu, quo deſcendere conentur,
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            ſpoliatas exiſtimo, quamuis illæ eædem in ſuperiorem atque pu-
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            riorem aërem translatæ vim obtineant deſcendendi vſque adeò,
              <lb/>
            dum ſimilis craſſitiei aërem inueniant, vbi conquieſcant: </s>
            <s xml:id="echoid-s1684" xml:space="preserve">ideò
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            allatum experimentum contra me vim non haberet. </s>
            <s xml:id="echoid-s1685" xml:space="preserve">Sed ſi ex me
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            aſcendentis in hiantem fiſtulam Mercurij cauſam quæras, illa in
              <lb/>
            promptu eſt. </s>
            <s xml:id="echoid-s1686" xml:space="preserve">Aër fiſtulæ infra affuſæ aquæ ſuperfieiem depreſſus
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            leuis eſt tantundem, ac grauis eſt aqua in aëre; </s>
            <s xml:id="echoid-s1687" xml:space="preserve">dumque nititur
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            aſcendere, ſecum rapit proximi Mercurij particulam, quæ intrà
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            aquam minùs grauitat, quàm in aĕre: </s>
            <s xml:id="echoid-s1688" xml:space="preserve">vſque eò autem attollitur
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            Mercurius, dum intrà aquam cylindrus ex Mercurio grauitante, & </s>
            <s xml:id="echoid-s1689" xml:space="preserve">
              <lb/>
            aëre leuitante compoſitus obtineat eamdem in ſpecie grauitatem
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            cum aquâ: </s>
            <s xml:id="echoid-s1690" xml:space="preserve">tunc enim & </s>
            <s xml:id="echoid-s1691" xml:space="preserve">aër Mercurium ſuſpendit, ne recidat, & </s>
            <s xml:id="echoid-s1692" xml:space="preserve">
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            Mercurius aërem cohibet, ne in ſuperiora auolet.</s>
            <s xml:id="echoid-s1693" xml:space="preserve"/>
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            <s xml:id="echoid-s1694" xml:space="preserve">Dand. </s>
            <s xml:id="echoid-s1695" xml:space="preserve">Hunc corporum nexum, quo alterum ab altero traha-
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            tur, non agnoſcunt.</s>
            <s xml:id="echoid-s1696" xml:space="preserve"/>
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            <s xml:id="echoid-s1697" xml:space="preserve">Maur. </s>
            <s xml:id="echoid-s1698" xml:space="preserve">Hoc tamen Elateris naturæ conuenit, vt quemadmo-
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            dum, ſi comprimatur, ſe explicet, ita, ſi diſtrahatur, ſe reci-
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            piat: </s>
            <s xml:id="echoid-s1699" xml:space="preserve">id quod in omnibus paſſim elaſmatum generibus obſeruare
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            licet, ſiuè in helicem augeſcentem conuoluantur, vt in horologijs,
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            ſiuè æqualibus ſpiris cylindrum circumplicent, ſiue in angulum,
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            aut in arcum, conformentur. </s>
            <s xml:id="echoid-s1700" xml:space="preserve">Si igitur præter naturam diſtractus
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            aër ſe recolligat, quemadmodum elaſma diſtractum, vtique ſe-
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            cum rapit proximum corpus. </s>
            <s xml:id="echoid-s1701" xml:space="preserve">Nota ſunt vobis experimenta ab in-
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            genioſo Boyle excogitata per Machinam Pneumaticam in hoc diſ-
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            ſimilem à globo Magdeburgico, quod hęc in ſuperiori parte fo-
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            ramen habet operculo congruente, & </s>
            <s xml:id="echoid-s1702" xml:space="preserve">exquiſitè ferruminato, ob-
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            ſtruendum, poſtquam immiſſum fuerit in vitreum globum, aut
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            cylindrum ſatis amplum, id, de quo experimentum ſumitur. </s>
            <s xml:id="echoid-s1703" xml:space="preserve">Im-
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            miſſo itaque in globum, aut cylindrum, vaſculo Mercurijcum fi-
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            ſtulâ, in qua digitorum 30 altitudinem obtinet incluſus Mercu-
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            rius (an vniuerſus globi aĕr premit Mercurium vaſis? </s>
            <s xml:id="echoid-s1704" xml:space="preserve">& </s>
            <s xml:id="echoid-s1705" xml:space="preserve">hoc idem
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            continget Mercurio in aperto aëre conſtituto; </s>
            <s xml:id="echoid-s1706" xml:space="preserve">an verò vnicus cy-
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            lindrulus aĕris? </s>
            <s xml:id="echoid-s1707" xml:space="preserve">& </s>
            <s xml:id="echoid-s1708" xml:space="preserve">hic decurtatusidem poteſt atque integer, cum
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            æquè premat) antliâ aërem globi exſugente ſenſim Mercurius </s>
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