Marci of Kronland, Johannes Marcus, De proportione motus figurarum recti linearum et circuli quadratura ex motu, 1648

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              lus A habens eundem impulſum, percutiat eundem circulum
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              B contiguum quadrato C. aut igitur moto C circulus B quie­
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              ſcet, aut illius motum conſequetur. </s>
              <s>Et ſi quidem quieſcet, erit
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              per 3. Axioma grauitas in C, ac proinde per 1. Axioma huius
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                <arrow.to.target n="fig15"/>
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              area æqualis circulo B. </s>
              <s>Quòd ſi verò ad illius motum move­
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              tur; erit quadratum C per idem Axioma minus circulo B. </s>
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              <s>Moveatur
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              B ex illâ plagâ per ſpatium ML: & quadratum
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              C per ſpatium HI. </s>
              <s>Supponamus verò HI æquale DE, & du­
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              plum ſpatij ML. </s>
              <s>Cùm
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              pro menſurâ plagæ minuatur im­
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              pulſus, ex demonſtratis ad propoſ. 31. & motus eandem ratio­
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              nem habeant, quam impulſus, per poſit: 4. ſit autem motus in
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              DE ad motum in ML duplus; erit
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              impulſus in A ad reli­
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              quum impulſum in B, ac proinde ad impulſum in C duplus. </s>
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              <s>Quia verò quadratum C movetur ab æquali impulſu per ſpa­
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              tium HI duplum ſpatij ML, erit
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              circulus B duplus qua­
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              drati C. </s>
              <s>Quòd ſi enim ſemiſſem circuli moveat idem impul­
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              ſus, quia tum per Corollarium 2. theorematis 1. impulſum ha­
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              bet duplum, movebit per poſit. 4. ad intervallum duplum. hoc </s>
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