Fabri, Honoré, Tractatus physicus de motu locali, 1646

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        <front>
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              faciliori, circa centrum, quod diſtet ab altera extremitate vna
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              quarta totius cylindri: ratio eſt: quia faciliùs mouetur circa illud
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              centrum, quàm circa alia puncta, quòd, ſcilicet, minùs ſpatij decur­
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              ratur, poſito eodem ſemper motu alterius extremitatis, cui appli­
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              catur immediatè potentia motrix. </s>
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              <s id="N10E60">11. Cùm rota mouetur in verticali, atque præponderat alter ſemi­
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              circulus, haud dubiè hic præponderans producit impetum in alio
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              ſemicirculo: </s>
              <s id="N10E68">hinc fortè eſt, quòd mirere, impetus determinatus
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              deorſum producit alium ſurſum: </s>
              <s id="N10E6E">hinc impetus vnius partis mobi­
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              lis poteſt producere ſimilem in alia parte continua; </s>
              <s id="N10E74">quod tantùm in
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              hoc caſu locum habet: </s>
              <s id="N10E7A">quando corpus incumbit plano, quod mo­
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              uetur motu recto æquabili, ab eo non ſeparatur; ſecùs verò, ſi in­
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              cumbat plano, quod mouetur motu circulari. </s>
            </p>
            <figure id="id.026.01.026.1.jpg" xlink:href="026/01/026/1.jpg" number="12"/>
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              De motu funependuli.
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              </s>
            </p>
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              <s id="N10E96">1. FVnependulum deſcendit per arcum motu naturaliter acce­
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              lerato: </s>
              <s id="N10E9C">experientia clariſſima eſt: cùm enim ex maiori ſubli­
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              mitate deſcendit, maiorem ictum infligit. </s>
              <s id="N10EA2">Ratio à priori eſt quia
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              priori impetui acquiſito nouus accedit: </s>
              <s id="N10EA8">non acceleratur in eadem
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              proportione, in qua ſuprà dictum eſt accelerari in linea recta; </s>
              <s id="N10EAE">quia
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              in hac acceleratur vniformiter, id eſt, æqualibus temporibus,
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              æqualia acquiruntur velocitatis momenta; </s>
              <s id="N10EB6">quia vel eſt ſemper ea­
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              dem inclinatio plani, vel idem perpendiculum: </s>
              <s id="N10EBC">at verò in fune­
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              pendulo in ſingulis punctis eſt noua tangens; </s>
              <s id="N10EC2">igitur noua inclina­
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              tio plani; igitur noua ratio motus. </s>
            </p>
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              <s id="N10ECA">2. Initio acceleratur motus per maiora crementa, ſub finem per mi­
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              nora; </s>
              <s id="N10ED0">v.g. ſi dato tempore acquiſiuit vnum gradum impetus initio,
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              æquali deinde tempore acquiret minùs: ratio clara eſt: </s>
              <s id="N10ED8">quia, vt ac­
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              quireret æqualem, deberet eſſe eadem plani inclinatio; </s>
              <s id="N10EDE">ſed ſemper
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              creſcit Inclinatio; </s>
              <s id="N10EE4">igitur ſemper imminuitur impetus æquali
                <expan abbr="tẽpore">tempore</expan>
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              acquiſitus: </s>
              <s id="N10EEE">acquiritur tamen æqualis velocitas in arcu, & in chor­
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              da, ſeu plano inclinato, eiuſdem altitudinis; igitur ſemper creſcit
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              motus funependuli in deſcenſu, ſed minoribus incrementis. </s>
            </p>
            <p id="N10EF6" type="main">
              <s id="N10EF8">3. Hinc breuiore tempore deſcendit per radium perpendicula­
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              rem, quàm per quadrantis arcum eiuſdem radij; </s>
              <s id="N10EFE">tùm quia breuior
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              eſt linea; tùm, quia in perpendiculari acceleratur motus per maiora
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              crementa. </s>
              <s id="N10F06">Vibratio maior eiuſdem funependuli æquali ferè tem-</s>
            </p>
          </section>
        </front>
      </text>
    </archimedes>
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