Gassendi, Pierre, De motu impresso a motore translato epistulae duae, 1642

Table of figures

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              <s id="id.000399">
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              loco. </s>
              <s id="id.000400">Ex quo rurſus intelligis, ſi globus eius naturæ
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              ſit, vt per decliuem locum acceleretur, & per accli­
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              uem retardetur, fore vt loco neque decliui, neque
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              accliui exſiſtente, neque accelerationem, neque re­
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              tardationem accipiat, ſed tenorem ſeruet, ac inde­
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              ſinenter moueatur. </s>
              <s id="id.000401">Atque hæc quidem attingo ſo­
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              lùm, vt planum faciam, ſi alteruter motuum haben­
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              dus naturalis ſit, illum horizontalem eſſe, potiuſ­
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              quàm perpendicularem. </s>
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              <s id="id.000402">XI. </s>
              <s id="id.000403">Quia verò dubium ſupereſt de perpendicu­
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              laris principio, non repeto quamobrem illum non
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              eſſe internum inſinüauerim. </s>
              <s id="id.000404">Addo ſolùm, quia vi­
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              demus motum deorſùm eadem proportione veloci­
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              tatis increſcere, qua motus ſursùm decreſcit; ea­
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              propter videri omninô duo eſſe principia externa,
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              quæ mutuò quaſi colluctentur, certatimque exſerant
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              vireis circa idem mobile. </s>
              <s id="id.000405">Et principium quidem ex­
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              ternum motus ſurſum conſtat eſſe manum, aliudve
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              corpus proijciens; at cum principium externum mo­
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              tus deorſum non perinde appareat, ideó-ne nullum
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              eſt dicendum? </s>
              <s id="id.000406">Non ſannè, niſi fortè cùm vides ferrum,
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              aliàs immotum jacens, ad magnetem pellici, nullam
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              cauſam externam cenſeas, quæ pellectionem faciat;
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              aut cùm vides rem pendulam, aliàs quieſcentem, agi­
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              tari, ac externam cauſam non vides, nullam eſſe
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              externam putes, à qua agitatio procedat. </s>
              <s id="id.000407">Cęterùm,
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              cùm plures ſint modi, quibus cauſa externa mouet,
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              conſtat tamen omneis ad duos, tanquam pręcipuos
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              pertinere, impulſionem, & attractionem. </s>
              <s id="id.000408">Age ita­
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              que experiamur, an-non motus rerum caden-</s>
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Impressum