Angeli, Stefano degli, Della gravita' dell' aria e fluidi : esercitata principalmente nelli loro homogenei

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            <s xml:id="echoid-s4425" xml:space="preserve">
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            in ſpecie d’eſſa acqua, e liquido.</s>
            <s xml:id="echoid-s4426" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s4427" xml:space="preserve">_Ofr_. </s>
            <s xml:id="echoid-s4428" xml:space="preserve">Certo che ſe ſono più graui in ſpecie, douerebbero, ben-
              <lb/>
            che anco con grandiſſima lentezza come eſperimentia-
              <lb/>
            mo in tanti altri, finalmente diſcendere.</s>
            <s xml:id="echoid-s4429" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s4430" xml:space="preserve">_Mat_. </s>
            <s xml:id="echoid-s4431" xml:space="preserve">Si quando non diueniſſero per qualche accidente della,
              <lb/>
            medema grauità ſpecifica con il liquido. </s>
            <s xml:id="echoid-s4432" xml:space="preserve">Io prego loro Si-
              <lb/>
            gnori a reflettere ſe quà poſſi hauer luogo il dire, che quel-
              <lb/>
            li corpuſcoli habbino il loro ambito coſi ſcabroſo, e ripie-
              <lb/>
            no di cauità coſi minime, che non ſiano capaci delli mini-
              <lb/>
            mi di quelli fluidi. </s>
            <s xml:id="echoid-s4433" xml:space="preserve">Onde ſe bene il puro corpuſcolo dell’-
              <lb/>
            oro, per eſempio, è aſsai più graue in ſpecie del liquido,
              <lb/>
            nulladimeno cõgiunto, ò con tutte quelle minime cauità
              <lb/>
            vacue, ò ripiene di materia ſottiliſſima, facia vn’aggregato
              <lb/>
            della medema grauità ſpecifica con quel liquido; </s>
            <s xml:id="echoid-s4434" xml:space="preserve">che per-
              <lb/>
            ciò ſi fermi da per tutto.</s>
            <s xml:id="echoid-s4435" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s4436" xml:space="preserve">E perche vna notitia corre dietro all’altra, da quanto s’è det
              <lb/>
            to, forſe ſi potrebbe penetrare la vera cagione delle preci
              <lb/>
            pitationi di queſti corpuſcoli. </s>
            <s xml:id="echoid-s4437" xml:space="preserve">Per eſempio, ſoggiunge i
              <lb/>
            medemo Boile. </s>
            <s xml:id="echoid-s4438" xml:space="preserve">_Quinimò videre est pondero ſa, & </s>
            <s xml:id="echoid-s4439" xml:space="preserve">mineralia cor_
              <lb/>
            _pora, ſi in corpuſculu ſatis exilia diuidantur, ad eam leuitatem &_</s>
            <s xml:id="echoid-s4440" xml:space="preserve">
              <lb/>
            _volubilitatem redigi poſſe, ut partes ingredientes stillatiorum eti_
              <lb/>
            _liquorum fiant, uti diſcere poſſumus ex illo, quem Chymiſtarum_
              <lb/>
            _alij Butyrum, alij ſimpliciter oleum, alij oleum glaciale Antimo_
              <lb/>
            _nij appellant; </s>
            <s xml:id="echoid-s4441" xml:space="preserve">qui, licet poſt retific ationem liquor fit admodum lim_
              <lb/>
            _pidus, magna tamen ſui parte ex ipſo Antimonij corpore conſtat_
              <lb/>
            _vt patet (prætermiſſa iam eius grauitate) ex eo quod magna pon_
              <lb/>
            _deroſæ calcis albæ, per artem in vitrum antimoniale reducibilis_
              <lb/>
            _quantitas beneficio aquæ limpidæ ex ipſo facilime præcipita_
              <lb/>
            _poſſit._</s>
            <s xml:id="echoid-s4442" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s4443" xml:space="preserve">_Ofr_. </s>
            <s xml:id="echoid-s4444" xml:space="preserve">Io direi che quell’acqua limpida infuſa facia con quel l@
              <lb/>
            quore vn cõpoſto aſsai più leggiero in ſpecie del puro l@
              <lb/>
            quore. </s>
            <s xml:id="echoid-s4445" xml:space="preserve">Che perciò quelli corpuſcoli diuenuti più graui in
              <lb/>
            ſpecie del mezzo, diſcendino. </s>
            <s xml:id="echoid-s4446" xml:space="preserve">La cera è poco meno gr
              <gap/>
              <lb/>
            ue in ſpecie dell’acqua comune; </s>
            <s xml:id="echoid-s4447" xml:space="preserve">onde ſe vn poco di lim
              <gap/>
              <lb/>
            tura di ferro la farà diſcendere apena, ſe in quell’ acqua s
              <gap/>
              <lb/>
            infonderà vn poco d’acqua ſalſa, ò vn poco di ſale, ſi vede
              <lb/>
            rà ritornar a galla. </s>
            <s xml:id="echoid-s4448" xml:space="preserve">Così ſe fatta graue con la predetta l
              <gap/>
              <lb/>
            matura quanto è l’acqua ſalſa, s’infonderà in queſta </s>
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