Galilei, Galileo, Les méchaniques, 1634

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                <pb pagenum="9" xlink:href="047/01/029.jpg"/>
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          <chap>
            <p type="head">
              <s id="s.000102">
                <emph type="center"/>
              CHAP. III.
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            <p type="head">
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                <emph type="center"/>
                <emph type="italics"/>
              Des ſuppoſitions de cet art.
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                <emph.end type="center"/>
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            </p>
            <p type="head">
              <s id="s.000104">
                <emph type="center"/>
              I. SVPPOSITION.
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            <p type="main">
              <s id="s.000105">TOut corps peſant ſe meut telle­
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              ment en bas que le centre de ſa
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              peſanteur ne ſort iamais hors de la ligne
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              droite, qui eſt décrite, ou imaginée de­
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              puis ledit centre de peſanteur iuſques
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              à celuy de la terre. </s>
              <s id="s.000106">Ce qui eſt ſuppoſé
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              auec raiſon, car puis que le centre de
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              peſanteur de chaque corps ſe doit aller
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              vnir au centre commun des choſes pe­
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              ſantes, il eſt neceſſaire qu'il y aille par
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              le chemin le plus court, c'eſt à dire par
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              la ligne droite, s'il n'a point d'empeſ­
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              chement. </s>
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            <p type="head">
              <s id="s.000107">
                <emph type="center"/>
              II. SVPPOSITION.
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              </s>
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            <p type="main">
              <s id="s.000108">Chaque corps peſe principalement
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              ſur le centre de ſa peſanteur, dans le­
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              quel il ramaſſe, & vnit toute ſon impe­
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              tuoſité, & ſa peſanteur. </s>
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