Marci of Kronland, Johannes Marcus
,
De proportione motus figurarum recti linearum et circuli quadratura ex motu
,
1648
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contingat, videndum. </
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<
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>Nam ita fieri opinantur, qui negant
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extra ſuturam illius oſſis, in quo recipitur plaga, fiſſuram pro
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tendi. </
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<
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>Cuius rationem aſſignant, quòd pars illa à plagâ affe
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cta nimis ſit robuſta: ac proinde in partem proximam, quæ ob
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nativam conſtitutionem minùs reſiſtere valet, illa violentia
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ſe recipiat. </
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<
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>Et quidem experientia his videtur favere. </
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Quan-doq;
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doque</
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enim à percuſſione
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neq;
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locum plagæ,
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neq;
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huic oppoſi
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tum, ſed quemvis alium infeſtari & frangi contingit. cùm ni
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mirum illarum partium unio minorem vim habet ad quieſcen
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dum, quàm impetus ad movendum. </
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Defortificatione aduerſum ictus
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Tormentorum.
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<
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>QVia mœnia urbis, caſtelli, aut propugnaculi ictus tormen
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torum admittere neceſſitas
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expan
abbr
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quandoq;
">quandoque</
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cogit; providen
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dumquô eiuſmodi ictus debilitentnr, minorem eâ ratione
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abbr
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plagã
">plagam</
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afferentes. </
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<
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>Id autem duobus modis aſſequi
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cõtingit
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: primo ma
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iori parte ictûs excluſâ, quem totum vitare nequimus: pars
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enim dimidia, aut tertia minorem noxam dabit, quàm totus. </
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<
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>Minuitur autem cùm non niſi obliquè recipitur. </
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<
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>Conſide
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randum ergo quibus potiſſimum locis urbs ad inuaſionem ſit
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opportuna & quâ ab hoſtium tormentis minùs tuta: tum enim
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latus munitionis oppoſitum eiuſmodi locis, quantùm fieri li
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cet,
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obliq;
">oblique</
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ducendum: quò ictus recipiat magis obliquos. </
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<
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>Quâ verò parte ob ſitum
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locorũ
">locorum</
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machinæ admoveri neque
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unt, in directum procurrere poteſt. </
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<
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>Tum igitur ictus obliquè
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incidentes non niſi partem plagæ dant à lineâ hypomochlij de
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finitam: reliquâ parte, quæ necdum percuſſit, reflexâ: & ſi
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quidem propugnaculum impetitur; quia latera ſibi oppoſitis, </
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