DelMonte, Guidubaldo, Le mechaniche

Page concordance

< >
Scan Original
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
< >
page |< < of 270 > >|
    <archimedes>
      <text id="id.0.0.0.0.3">
        <body id="id.2.0.0.0.0">
          <chap id="N106DF">
            <p id="id.2.1.88.0.0" type="main">
              <s id="id.2.1.88.6.0">
                <pb xlink:href="037/01/022.jpg"/>
                <emph type="italics"/>
              uerſi in giù, eſſendogliene da eſſa
                <lb/>
              vietato. </s>
              <s id="id.2.1.88.7.0">Per la diffinitione dun­
                <lb/>
              que del centro della grauezza, il
                <lb/>
              punto B & il peſo A ſtaranno
                <lb/>
              in queſto ſito. </s>
              <s id="id.2.1.88.8.0">& quantunque il
                <lb/>
              B ſia piu alto di qual ſi voglia al­
                <lb/>
              tro punto del cerchio, tuttauia non
                <lb/>
              ſi mouerà in giù da queſto ſito per
                <lb/>
              la circonferenza del cerchio, pero­
                <lb/>
              che non ſi inchinerà più verſo lo F,
                <lb/>
              che verſo lo E, per eſſere nell'vna
                <lb/>
              parte & nell'altra eguale la diſce­
                <lb/>
              ſa: ne il peſa A piu ſtà pendente
                <lb/>
              in vna parte che nell'altra, ilche
                <lb/>
              non auiene in qual ſi voglia altro
                <lb/>
              punto della circonferenza del cer­
                <lb/>
              chio, eccettuato il D. </s>
              <s id="id.2.1.88.9.0">Sia il centro
                <lb/>
                <figure id="id.037.01.022.1.jpg" xlink:href="037/01/022/1.jpg" number="5"/>
                <lb/>
              della grauezza dell'iſteſſo peſo, come in F, concioſia che la diſceſa ſia dal punto
                <lb/>
              F verſo il D, & la aſceſa verſo il B, però il punto F moueraſſi in giù: & per­
                <lb/>
              cioche non ſi puote mouere al centro del mondo per linea diritta, per eſſere impe­
                <lb/>
              dito dal punto C immobile per cauſa della linea CF, ma ben ſi mouerà ſempre
                <lb/>
              in giù come richiede la ſua natura: & eſſendo il D il luogo infimo, ſi mouerà per
                <lb/>
              la circonferenza FD finche peruenga in D, nelqual ſito fermeraſſi il peſo, &
                <lb/>
              reſterà immobile, sì perche non ſi puote più mouere in giù per eſſere attaccato al
                <lb/>
              punto C, sì anche percioche egli è ſoſtenuto nel ſuo centro della grauezza. </s>
              <s id="id.2.1.88.10.0">Et
                <lb/>
              quando F ſarà in D, ſarà ſimilmente la FC in DC, & inſieme à piombo
                <lb/>
              dell'orizonte. </s>
              <s id="id.2.1.88.11.0">il peſo dunque non ſi fermerà giamai finche la linea CF non ſtia
                <lb/>
              à piombo dell'orizonte, che biſognaua prouare.
                <emph.end type="italics"/>
              </s>
            </p>
            <p id="id.2.1.90.0.0" type="margin">
              <s id="id.2.1.90.1.0">
                <margin.target id="note2"/>
                <emph type="italics"/>
              Per la terza preſupposta di questo.
                <emph.end type="italics"/>
              </s>
            </p>
            <p id="id.2.1.91.0.0" type="main">
              <s id="id.2.1.91.1.0">Di quì ſi puote cauare, che il peſo ſia pur ſoſtenuto in vn dato punto
                <lb/>
              in qual ſi voglia modo, non ſtarà fermo giamai, ſe non quando la
                <lb/>
              linea tirata dal centro della grauezza del peſo à quel punto, ſtia à
                <lb/>
              piombo dell'orizonte. </s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>