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

Page concordance

< >
Scan Original
91
92
93
94
95 1
96 2
97 3
98 4
99 5
100 6
101 7
102 8
103 9
104 10
105 11
106 12
107 13
108 14
109 15
110 16
111 17
112 18
113 19
114 20
115 21
116 22
117 23
118 24
119 25
120 26
< >
page |< < (77) of 192 > >|
    <echo version="1.0RC">
      <text xml:lang="it" type="free">
        <div xml:id="echoid-div40" type="section" level="1" n="23">
          <p>
            <s xml:id="echoid-s5156" xml:space="preserve">
              <pb o="77" file="00171" n="171" rhead="QVINTO."/>
            ſtamente diſcender l’acqua all’intorno.</s>
            <s xml:id="echoid-s5157" xml:space="preserve"/>
          </p>
          <figure number="33">
            <image file="00171-01" xlink:href="http://echo.mpiwg-berlin.mpg.de/zogilib?fn=/permanent/library/9EXVCG1R/figures/00171-01"/>
          </figure>
          <p>
            <s xml:id="echoid-s5158" xml:space="preserve">Et hauendo tentato queſt’eſperienza più vol-
              <lb/>
            te voltando, eriuoltando il tubo, accade-
              <lb/>
            ua alle volte che non tutta l’aria aſcende-
              <lb/>
            ua vnita, & </s>
            <s xml:id="echoid-s5159" xml:space="preserve">in vna ſol volta; </s>
            <s xml:id="echoid-s5160" xml:space="preserve">ma ò ne ri-
              <lb/>
            maneſſe qualche poca attaccata alla veſci-
              <lb/>
            ca; </s>
            <s xml:id="echoid-s5161" xml:space="preserve">ò penetraſſe per la legatura; </s>
            <s xml:id="echoid-s5162" xml:space="preserve">ò foſſero
              <lb/>
            efluuii della medema acqua eccitati dal
              <lb/>
            calor delle mani; </s>
            <s xml:id="echoid-s5163" xml:space="preserve">ò che che altro ne foſſe,
              <lb/>
            e principiaſſe queſta a ſalire in tempo che
              <lb/>
            la prima foſſe ſalita molto ad alto, anco
              <lb/>
            paſſata la metà; </s>
            <s xml:id="echoid-s5164" xml:space="preserve">nulladimeno queſta ſe-
              <lb/>
            conda occupando nel tubo ſpatio molt’-
              <lb/>
            anguſto, aſcendeua con gran velocità;
              <lb/>
            </s>
            <s xml:id="echoid-s5165" xml:space="preserve">non formando la predetta figura, ma co-
              <lb/>
            me vna perletta, ò pallina lucida, la quale
              <lb/>
            arriuata all’altra ò ſi confondeua con eſſa; </s>
            <s xml:id="echoid-s5166" xml:space="preserve">
              <lb/>
            ò le ſi attaccaua alla baſe A C, di modo che ſe diſtingueua,
              <lb/>
            ritenendo dalla parte inferiore la ſua conueſſità.</s>
            <s xml:id="echoid-s5167" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s5168" xml:space="preserve">Oſſeruino però che circa queſta figura faitigiata dell’ aria
              <lb/>
            A B C, la refrattione cagionata dalla craſſitie del vetro, e
              <lb/>
            la poſitura dell’occhio ne hà vna gran parte circa il più e
              <lb/>
            meno. </s>
            <s xml:id="echoid-s5169" xml:space="preserve">Poiche collocato l’occhio di ſotto al detto cilindro
              <lb/>
            d’aria, hò veduto la faſtigiatione B, molto eminente; </s>
            <s xml:id="echoid-s5170" xml:space="preserve">collo-
              <lb/>
            cato al liuello con la cima B, l’ho veduta minore; </s>
            <s xml:id="echoid-s5171" xml:space="preserve">ma col-
              <lb/>
            locato di ſopra non vedeuo alcuna conueſſità.</s>
            <s xml:id="echoid-s5172" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s5173" xml:space="preserve">Ho poi preſo vn’altro tubo non in altro differente dall’ an-
              <lb/>
            tecedente SX, ſe non che era più ſottile, e non era tutto
              <lb/>
            largo vgualmente, ma di ſopra dell’S V, terminaua in vna
              <lb/>
            mazzocca aſſai capace come vn sferoide, ouero Ouo; </s>
            <s xml:id="echoid-s5174" xml:space="preserve">e
              <lb/>
            fatte tutte le coſe come nel precedente, hò oſſeruato che
              <lb/>
            ſino che l’acqua aſcendeua per la parte S X, del tubo, ne ſe-
              <lb/>
            guiua il medemo come nell’antecedente; </s>
            <s xml:id="echoid-s5175" xml:space="preserve">ma arriuata alla
              <lb/>
            parte più larga, non riteneua quella figura curua, e conoi-
              <lb/>
            dale, ma facendoſi in vna falda larga, e ſchizza come vna
              <lb/>
            fogatia, con gran preſtezza aſcendeua il rimanente. </s>
            <s xml:id="echoid-s5176" xml:space="preserve">Eciò
              <lb/>
            tanto ſuccedeua, ò ſaliſce dal più ſtretto nel più largo, ò da
              <lb/>
            queſto in quello.</s>
            <s xml:id="echoid-s5177" xml:space="preserve"/>
          </p>
        </div>
      </text>
    </echo>
Impressum