Fabri, Honoré, Tractatus physicus de motu locali, 1646

Page concordance

< >
Scan Original
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
< >
page |< < of 491 > >|
    <archimedes>
      <text>
        <body>
          <chap id="N1137F">
            <pb pagenum="52" xlink:href="026/01/084.jpg"/>
            <p id="N145C3" type="main">
              <s id="N145C5">
                <emph type="center"/>
                <emph type="italics"/>
              Theorema
                <emph.end type="italics"/>
              93.
                <emph.end type="center"/>
              </s>
            </p>
            <p id="N145D1" type="main">
              <s id="N145D3">
                <emph type="italics"/>
              Impetus propagatur eodem inſtanti, id eſt, ſine temporis ſucceſſione.
                <emph.end type="italics"/>
              </s>
              <s id="N145DA"> Proba­
                <lb/>
              tur; </s>
              <s id="N145DF">ſit enim applicata potentia in A, dico ſimul produci impetum in
                <lb/>
              BCDE; </s>
              <s id="N145E5">quia ſi primo inſtanti produceretur in A, & ſecundo in B, vel
                <lb/>
              A moueretur ante B, vel impetus in A eſſet fruſtrà; </s>
              <s id="N145EB">vtrumque eſt abſur­
                <lb/>
              dum; nam totum AE, ſimul mouetur. </s>
            </p>
            <p id="N145F1" type="main">
              <s id="N145F3">
                <emph type="center"/>
                <emph type="italics"/>
              Theorema
                <emph.end type="italics"/>
              94.
                <emph.end type="center"/>
              </s>
            </p>
            <p id="N145FF" type="main">
              <s id="N14601">
                <emph type="italics"/>
              Tribus tantùm modis propagari poteſt impetus ratione intenſionis.
                <emph.end type="italics"/>
              </s>
              <s id="N14608"> Primò
                <lb/>
              ſi æqualiter omnibus partibus ſubjecti diſtribuatur; id eſt vniformiter. </s>
              <s id="N1460E">
                <lb/>
              Secundò, ſi plùs partibus propioribus, & minùs remotioribus. </s>
              <s id="N14612">Tertiò, è
                <lb/>
              contra, ſi plùs remotioribus, & minùs propioribus; </s>
              <s id="N14618">tribus etiam ratione
                <lb/>
              perfectionis eo modo, quo diximus de intenſione; </s>
              <s id="N1461E">at verò nouem mo­
                <lb/>
              dis propagari poteſt ratione vtriuſque; patet ex regula combinationum; </s>
              <s id="N14624">
                <lb/>
              ſi enim 3. ducantur in 3. habebis 9. Iam ſupereſt, vt videamus, an reue­
                <lb/>
              rà omnibus iſtis modis impetus re ipſa propagetur; </s>
              <s id="N1462B">quod licèt difficile
                <lb/>
              ſit, & vix hactenus explicatum: Audeo tamen polliceri meum ſuper hac
                <lb/>
              re conatum non prorſus inutilem fore. </s>
            </p>
            <p id="N14633" type="main">
              <s id="N14635">
                <emph type="center"/>
                <emph type="italics"/>
              Theorema
                <emph.end type="italics"/>
              95.
                <emph.end type="center"/>
              </s>
            </p>
            <p id="N14641" type="main">
              <s id="N14643">
                <emph type="italics"/>
              Impetus propagatur vniformiter in mobili, cuius omnes partes mouentur
                <lb/>
              æquali motu
                <emph.end type="italics"/>
              ; </s>
              <s id="N1464E">probatur, quia impetus non cognoſcitur niſi per motum;
                <lb/>
              igitur vbi eſt æqualis motus, debet eſſe æqualis impetus in omnibus par­
                <lb/>
              tibus, id eſt æqualis graduum heterogeneorum collectio, in quo non
                <lb/>
              eſt difficultas. </s>
            </p>
            <p id="N14658" type="main">
              <s id="N1465A">
                <emph type="center"/>
                <emph type="italics"/>
              Scholium.
                <emph.end type="italics"/>
                <emph.end type="center"/>
              </s>
            </p>
            <p id="N14666" type="main">
              <s id="N14668">Obſeruabis illud mobile moueri motu æquali ſecundum omnes ſui
                <lb/>
              partes, quod mouetur motu recto; quippe fieri non poteſt, quin omnes
                <lb/>
              partes, quæ mouentur motu recto ſimplici, motu etiam æquali mouean­
                <lb/>
              tur. </s>
            </p>
            <p id="N14672" type="main">
              <s id="N14674">
                <emph type="center"/>
                <emph type="italics"/>
              Theorema
                <emph.end type="italics"/>
              96.
                <emph.end type="center"/>
              </s>
            </p>
            <p id="N14680" type="main">
              <s id="N14682">
                <emph type="italics"/>
              Cum duo corpora ſeſe mutuò tangunt, impetus in vtroque propagatur
                <emph.end type="italics"/>
              ſint
                <lb/>
              v. g. globi A & B, æquales ſibi inuicem contigui in C, ſit applicata po­
                <lb/>
              tentia in D, non modò producet impetum in globo A, ſed etiam in B: </s>
              <s id="N14693">
                <lb/>
              probatur primò, quia ſe habent per modum vnius, vt patet ex reſiſten­
                <lb/>
              tia, nec enim A moueri poteſt ſine B per lineam DE, quod certè cla­
                <lb/>
              riſſimum eſt; probatur ſecundò quia ſi A produceret impetum in B, duo
                <lb/>
              globi, vel 3. vel 5. vel infiniti tantùm reſiſterent, quantùm vnicus glo­
                <lb/>
              bus, quod falſum & abſurdum eſt. </s>
              <s id="N146A0">Tertiò, Ratio à priori eſt; </s>
              <s id="N146A4">quia ideo
                <lb/>
              producitur, & propagatur impetus in toto A; </s>
              <s id="N146AA">quia vna pars non poteſt
                <lb/>
              moueri ſine alia per Th. 33. ſed non poteſt A moueri niſi moueatur B;
                <lb/>
              igitur in vtroque ſimul, & æqualiter propagatur impetus. </s>
            </p>
            <p id="N146B2" type="main">
              <s id="N146B4">
                <emph type="center"/>
                <emph type="italics"/>
              Corollarium
                <emph.end type="italics"/>
              1.
                <emph.end type="center"/>
              </s>
            </p>
            <p id="N146C1" type="main">
              <s id="N146C3">Hinc ratio manifeſta cur maior ſit reſiſtentia duorum quàm vnius. </s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>