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

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            <s xml:id="echoid-s5413" xml:space="preserve">
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            rio non poteua diſcender ad eſtruderla.</s>
            <s xml:id="echoid-s5414" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s5415" xml:space="preserve">_Mat._ </s>
            <s xml:id="echoid-s5416" xml:space="preserve">In gratia miei Signori mi aſpetino vn poco che horho
              <lb/>
            ra ritorno. </s>
            <s xml:id="echoid-s5417" xml:space="preserve">Eccomi à riſeruirle.</s>
            <s xml:id="echoid-s5418" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s5419" xml:space="preserve">_Ofr._ </s>
            <s xml:id="echoid-s5420" xml:space="preserve">Coſa vuol fare di queſta boccia piena d’acqua?</s>
            <s xml:id="echoid-s5421" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s5422" xml:space="preserve">_Mat._ </s>
            <s xml:id="echoid-s5423" xml:space="preserve">Come vede Signor Ofredi queſta boccia da canneuetta
              <lb/>
            piena d’acqua (poco importarebbe che foſſe altro vaſo)
              <lb/>
            è otturata con queſto ſughero, che non la ſerra eſquiſita-
              <lb/>
            mẽte, di modo che hora che è riuoltata conil bucco all’in-
              <lb/>
            giù, ſtilla all’intorno del ſughero l’acqua; </s>
            <s xml:id="echoid-s5424" xml:space="preserve">e pure queſto
              <lb/>
            non aſcende in conto alcuno. </s>
            <s xml:id="echoid-s5425" xml:space="preserve">Sà V. </s>
            <s xml:id="echoid-s5426" xml:space="preserve">S. </s>
            <s xml:id="echoid-s5427" xml:space="preserve">la cauſa di ciò? </s>
            <s xml:id="echoid-s5428" xml:space="preserve">Que-
              <lb/>
            ſta è perche l’acqua, che diſcende non ſubintra, e ſi piglia
              <lb/>
            in capo il ſughero.</s>
            <s xml:id="echoid-s5429" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s5430" xml:space="preserve">Di più ecco che con queſto temperarino ſpingo lo ſughero
              <lb/>
            all’insù vn poco, poco, sì che aggiuto la ſua leggierezza
              <lb/>
            (ſe ve ne hà) all’aſcendere; </s>
            <s xml:id="echoid-s5431" xml:space="preserve">e pure _tantum abeſt_ che aſcendi,
              <lb/>
            che V. </s>
            <s xml:id="echoid-s5432" xml:space="preserve">S. </s>
            <s xml:id="echoid-s5433" xml:space="preserve">lo vede a ritornare ad otturar la boccia come
              <lb/>
            prima. </s>
            <s xml:id="echoid-s5434" xml:space="preserve">Ciò certò d’altronde non procede ſe non perche
              <lb/>
            non è eſtruſo, non potendoli ſubintrar l’acqua, e rifletten-
              <lb/>
            do cacciarlo all’insù.</s>
            <s xml:id="echoid-s5435" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s5436" xml:space="preserve">_Cont._ </s>
            <s xml:id="echoid-s5437" xml:space="preserve">Già che il Sig. </s>
            <s xml:id="echoid-s5438" xml:space="preserve">Ofredi hà diſopra portato l’eſempio delle
              <lb/>
            due laſtre, le quali hà creduto non ſepararſi _ne detur va-_
              <lb/>
            _cuum,_ giudico bene che ſi fermiamo vn poco circa queſto
              <lb/>
            Fenomeno, intendendo di proponer alli curioſi alcune eſ-
              <lb/>
            perienze, che deſidererai che foſſero fatte de quelli che
              <lb/>
            hannole machine a propolito. </s>
            <s xml:id="echoid-s5439" xml:space="preserve">Si pigliano due laſtre di ve-
              <lb/>
            tro, pietra, ò metallo, le quali ſiano ottimamente ſpianate,
              <lb/>
            sì che ponendone vna ſopral altra ſi combaccino total-
              <lb/>
            mente ſenza che di mezzo vi ſia aria, (anzi che per eſclu-
              <lb/>
            derla meglio ſi bagnano con acqua, acquauita, olio di mã-
              <lb/>
            dole dolci, &</s>
            <s xml:id="echoid-s5440" xml:space="preserve">c. </s>
            <s xml:id="echoid-s5441" xml:space="preserve">accioche queſti riempiano tutte quelle mi-
              <lb/>
            nime cauità, che perfortuna vi foſſero) e ſe appendono
              <lb/>
            parallele all’orizonte. </s>
            <s xml:id="echoid-s5442" xml:space="preserve">Queſte ſtanno così appeſe, ne l’infe-
              <lb/>
            riore ſi ſtacca dalla ſuperiore, benche non li ſia attaccata
              <lb/>
            che dal ſolo contatto. </s>
            <s xml:id="echoid-s5443" xml:space="preserve">L’vniuerſal opinione delle ſcuole è
              <lb/>
            ſtata comunemente, e pur hora regna trà molti, che ciò
              <lb/>
            ſucceda _ne detur vacuum_; </s>
            <s xml:id="echoid-s5444" xml:space="preserve">ma hora da chi ha giuditio, e filo-
              <lb/>
            ſofa con l’eſperienze, ſi dice ciò ſuccedere per la preſſione
              <lb/>
            dell’aria, che preme, & </s>
            <s xml:id="echoid-s5445" xml:space="preserve">ſpinge l’inferiore alla ſuperiore, </s>
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