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

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            <p type="main">
              <s id="id.000251">
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              sùs deſcriberet; at dum proijcitur ſursùm à manu,
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              quæ ipſa intereà mouetur antrorsùm, efficitur, vt
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              manus neque omninô ſursùm, neque omninô antror­
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              sùm proijciat (videlicet motus antrorsùm, quo ab­
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              ripitur, deflectit illam à motu ſursùm, quo per ſe
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              moueretur) ſed inter vtrumque, ſeu obliquè proijciat;
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              ſicque projecta pila curuam lineam neceſſariò deſcri­
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              bat, cuius dimidium aſcendendo, & dimidium deſ­
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              cendendo perficiatur. </s>
              <s id="id.000252">Et vis id pleniùs cognoſcere?
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              </s>
              <s id="id.000253">Iube currum conſiſtere, proijce pilam ſursùm, &,
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              ſigno priùs aurigæ dato, excedat currus, quam pri­
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              mùm projeceris; non recidet illa profectò in manum,
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              ſed longè à curru locum prætervecto; illeque idem,
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              qui è regione tui conſtiterit, deſcribentem videbit,
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              non arcum, ſed rectam, perpendicularemque li­
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              neam, propter motum ſursùm ſimplicem, incom­
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              poſitumque, & qui ſolius manus fuit proprius, ipſo
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              curru nihil conferente. </s>
              <s id="id.000254">Profer deinde caput extra
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              currum, & deſignato in parte currus inferiore puncto
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              aliquo, quod in eadem linea perpendiculari cum
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              oculo tuo ſit; ac tum, tranſlato citatiſſimè curru,
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              admoue pilam ad oculum, ipſamque nulla facta vi
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              à manu dimitte; videbis pilam decidere ſecundum il­
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              lam lineam, atque idcircô caſus ille apparebit tibi
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              perpendicularis. </s>
              <s id="id.000255">Non perinde porrô apparebit illi,
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              qui extra currum fuerit, & ad caſum attenderit: ob­
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              ſeruabit ſcilicet pilam quaſi ſemi-arcum, ſeu curuam
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              lineam deſcribere: quoniam quamuis manus non
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              imprimat illi motum ſibi proprium, imprimit tamen
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              motum, quem habet à curru, adeó vt præter mo-</s>
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          </chap>
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