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

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          <pb o="71" file="00077" n="77" rhead="SECONDO."/>
          <p>
            <s xml:id="echoid-s2346" xml:space="preserve">_Matem_. </s>
            <s xml:id="echoid-s2347" xml:space="preserve">Li medemi monticelli, ò ſcoglietti di ſuccidume non
              <lb/>
            arrecaranno il medemo impedimento alli cannelli larghi,
              <lb/>
            che arrecaranno alli più ſtretti. </s>
            <s xml:id="echoid-s2348" xml:space="preserve">V. </s>
            <s xml:id="echoid-s2349" xml:space="preserve">S. </s>
            <s xml:id="echoid-s2350" xml:space="preserve">prenda vna circonferen-
              <lb/>
            za aſſai grande, e riempita la parte caua di conetti, ò pira-
              <lb/>
            midi, attaccando le ſue baſi ad eſſa, di modo che vna pira-
              <lb/>
            mide tocchi l’altra. </s>
            <s xml:id="echoid-s2351" xml:space="preserve">Vederà che le cime delle piramidi ſaran.
              <lb/>
            </s>
            <s xml:id="echoid-s2352" xml:space="preserve">no più lontane, vna dall’altra, e trà le ſuperficie d’vna, e dell’-
              <lb/>
            altra vi ſarà più ſpacio, quanto più la circonferenza ſarà
              <lb/>
            di maggior diametro. </s>
            <s xml:id="echoid-s2353" xml:space="preserve">Di modo che ſe il circolo ſarà piccio-
              <lb/>
            liſſimo, li lati delle piramidiſaranno viciniſſimi, e le cime, ò
              <lb/>
            vertici quaſi concorreranno in vn punto.</s>
            <s xml:id="echoid-s2354" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s2355" xml:space="preserve">_Ofred_. </s>
            <s xml:id="echoid-s2356" xml:space="preserve">Hò inteſo. </s>
            <s xml:id="echoid-s2357" xml:space="preserve">Nelli cannelli più larghi, perche li lati delle
              <lb/>
            piramidi, e li ſuoi vertici ſono più diſtanti, più facilmente l’-
              <lb/>
            acqua può ſuperare l’impedimento delli ſcoglietti del ſucci-
              <lb/>
            dume, aſcendendo per li ſpacii, che ſono trà ſcoglio, e ſco-
              <lb/>
            glio. </s>
            <s xml:id="echoid-s2358" xml:space="preserve">Il che più difficilmente ſuccede nelli più piccioli, per li
              <lb/>
            anguſti ſpacii, che ſono trà l’vno, e l’altro ſcoglietto.</s>
            <s xml:id="echoid-s2359" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s2360" xml:space="preserve">_Mà_ miei Signori molto habbiamo digredito. </s>
            <s xml:id="echoid-s2361" xml:space="preserve">E già tempo che
              <lb/>
            ritorniamo alla cagione dell’aſcender dell’ acqua nelli can-
              <lb/>
            nellini. </s>
            <s xml:id="echoid-s2362" xml:space="preserve">Realmente la diuerſa preſſione mi pare che tanto ag-
              <lb/>
            giuſtatamẽte accomodaſſe queſta facenda che nulla più. </s>
            <s xml:id="echoid-s2363" xml:space="preserve">Ne
              <lb/>
            l’eſpèrienze fatte a Firenze mi paiono tali, che habbino to-
              <lb/>
            talmante a rimuouermida queſto penſamento Io noncredo
              <lb/>
            che in queſte loro eſperienze habbino totalmente rimoſſa l’
              <lb/>
            aria, ma bene debilitatala & </s>
            <s xml:id="echoid-s2364" xml:space="preserve">eſtenuatala. </s>
            <s xml:id="echoid-s2365" xml:space="preserve">Nel qual caſo pro-
              <lb/>
            portionatamente debilitata, e l’ambiente il cannellino, e
              <lb/>
            quella, che li preme ſopra, non sò vedere, perche l’acqua
              <lb/>
            non doueſſe eſſer premuta a ſalire, mentre tanto, e tanto re-
              <lb/>
            ſta minore il momento di quella, che riempie, e ſouraſta al
              <lb/>
            cannellino.</s>
            <s xml:id="echoid-s2366" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s2367" xml:space="preserve">_Matem_. </s>
            <s xml:id="echoid-s2368" xml:space="preserve">Ma Signor Ofredi il negotio ſtà, che dicono, che ſaliua
              <lb/>
            alla medema altezza. </s>
            <s xml:id="echoid-s2369" xml:space="preserve">Il che certo non douerebbe ſuccedere,
              <lb/>
            quando ſaliſce per la preſſione, come io breuemente li mo-
              <lb/>
            ſtrarò dal ſeguente</s>
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