Jordanus de Nemore, [Liber de ratione ponderis], 1565
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                <s id="id.2.44.00.01">Quaestio quadragesimatertia.
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                Quod partes habet cohaerentes,
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                si motu directe offendantur, redit
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                directe.
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                <s id="id.2.44.02.01">Hoc quidem fieri habet per medium,
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                in quo defertur, siue aer, siue aqua, et
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                propter partium raritatem sit in quo
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                defertur b, idest aer, siue aqua, et materiam
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                a, in quo offendit c. </s>
                <s id="id.2.44.02.02">Quia ergo a, mouet b,
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                quum recedat a, de e, loco suo, et impellat b,
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                de loco suo, oportet ut ad supplendum
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                loca posteri. </s>
                <s id="id.2.44.02.03">reciperetur b, vnde eodem im­
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                pulsu et permouetur, et retorquetur eo am
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                plius quum offendat a, in c, quumque b, ne­
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                queat procedere pondere imminentis constru
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                ctum ponderosus refertur, et cum impetus
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                a, refractus sit in c, et ponderet solo iam in­
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                uitatur. </s>
                <s id="id.2.44.02.04">habet retrahi motum b, nisi pon­
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                dus eius praeualeat, et directe. </s>
                <s id="id.2.44.02.05">quia in om­
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                nes partes aequaliter recedit b. </s>
                <s id="id.2.44.02.06">Raritas uero
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                partium hoc idem operatur, quoniam prio
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                res partes a, quum prius offendantur in e,
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                urgentur mole, et impetu posteriorum, et
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                cedunt in se, sicque deluso impetu redeuntes
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                in locum suum, alias repelluntur recedendo,
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                separabiles sunt partes constrictae, hinc, inde
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                resiliunt.
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                <s id="id.2.44.03.01">Si quidem aliquod quo amplius conti­
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                nue demissum descendit, tantum in priori
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                perstrictus efficiatur.
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                <s id="id.2.44.04.01">Exitus per quod egreditur a, b, et per prima pars c, quod quum descen</s>
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