Voltaire, Elémens de la philosophie de Neuton : mis à la portée de tout le monde

Table of Notes

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              <pb o="127" file="0147" n="147" rhead="DE NEUTON."/>
            le plus la vûe eſt le plus réfrangible, & </s>
            <s xml:id="echoid-s1674" xml:space="preserve">par
              <lb/>
            conſequent eſt compoſé de parties plus fi-
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            nes & </s>
            <s xml:id="echoid-s1675" xml:space="preserve">moins gravitantes; </s>
            <s xml:id="echoid-s1676" xml:space="preserve">& </s>
            <s xml:id="echoid-s1677" xml:space="preserve">ne croyez pas
              <lb/>
            que ce ſoit ici une ſimple conjecture, & </s>
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            qu’on devine au hazard, que la lumiere a
              <lb/>
            de la peſanteur, & </s>
            <s xml:id="echoid-s1679" xml:space="preserve">qu’un rayon peſe plus
              <lb/>
            qu’un autre.</s>
            <s xml:id="echoid-s1680" xml:space="preserve"/>
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          <p>
            <s xml:id="echoid-s1681" xml:space="preserve">Des expériences, faites par les mains les
              <lb/>
              <note position="right" xlink:label="note-0147-01" xlink:href="note-0147-01a" xml:space="preserve">La lu-
                <lb/>
              miere
                <lb/>
              eſt pe-
                <lb/>
              ſante.</note>
            plus exercées & </s>
            <s xml:id="echoid-s1682" xml:space="preserve">les plus habiles, nous ap-
              <lb/>
            prennent que pluſieurs corps acquiérent du
              <lb/>
            poids après avoir été long-tems imbibez de
              <lb/>
            lumiere. </s>
            <s xml:id="echoid-s1683" xml:space="preserve">Les particules de feu qui ont
              <lb/>
            pénétré leur ſubſtance l’ont augmentée.
              <lb/>
            </s>
            <s xml:id="echoid-s1684" xml:space="preserve">Mais quand on révoqueroit en doute ces ex-
              <lb/>
            périences, le feu eſt une matiere; </s>
            <s xml:id="echoid-s1685" xml:space="preserve">donc
              <lb/>
            il peſe, & </s>
            <s xml:id="echoid-s1686" xml:space="preserve">la lumiere n’eſt autre choſe que
              <lb/>
            du feu.</s>
            <s xml:id="echoid-s1687" xml:space="preserve"/>
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            <s xml:id="echoid-s1688" xml:space="preserve">Il eſt évident qu’un rayon blanc peſe
              <lb/>
            tous les rayons qui le compoſent. </s>
            <s xml:id="echoid-s1689" xml:space="preserve">Or ſup-
              <lb/>
            poſez, un moment, que ces rayons s’écar-
              <lb/>
            tent tous également l’un de l’autre, alors il
              <lb/>
            eſt évident, en ce cas, que le rayon rouge,
              <lb/>
            étant ſept fois moins réfrangible que le
              <lb/>
            rayon violet, doit avoir ſept fois plus de
              <lb/>
            maſſe, & </s>
            <s xml:id="echoid-s1690" xml:space="preserve">ſept fois plus de poids, que le </s>
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