Stevin, Simon, Mathematicorum hypomnematum... : T. 4: De Statica : cum appendice et additamentis, 1605

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          <pb o="81" file="527.01.081" n="81" rhead="AD LECTOREM"/>
          <p style="it">
            <s xml:id="echoid-s2563" xml:space="preserve">QVandoquidem nonnullis bujus Praxis
              <lb/>
            propoſitionibus de corporum motu dictu-
              <lb/>
            riſumus, paucis priuſquam in rem ingre-
              <lb/>
            dimur lectoriaperire viſum fuit Stati-
              <lb/>
            cem duntaxat potentiæ moventis & </s>
            <s xml:id="echoid-s2564" xml:space="preserve">pon-
              <lb/>
            derismotiſitus æquilibritatem ſeu æqua.
              <lb/>
            </s>
            <s xml:id="echoid-s2565" xml:space="preserve">mentum docere; </s>
            <s xml:id="echoid-s2566" xml:space="preserve">quanta verò moventis
              <lb/>
            potentiæ vis præterea deſideretur, (nam
              <lb/>
            cuilibet movendoimpedimentũ ſola cogitatione tantũ ſepar abi-
              <lb/>
            le perpetuò inbæret, quod & </s>
            <s xml:id="echoid-s2567" xml:space="preserve">ipſum ſuperari quoque neceſſe eſt,)
              <lb/>
            quò datum pondus commoveatur & </s>
            <s xml:id="echoid-s2568" xml:space="preserve">impellatur, à Staticæ do-
              <lb/>
            ctrina alienũ fuerit; </s>
            <s xml:id="echoid-s2569" xml:space="preserve">cum via & </s>
            <s xml:id="echoid-s2570" xml:space="preserve">ratione mathematica iste po-
              <lb/>
            tentiæ exceſſus invenirineque explicari poſsit, etenim impedi-
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            menta & </s>
            <s xml:id="echoid-s2571" xml:space="preserve">res mot æ constantem analogiam nullam babent. </s>
            <s xml:id="echoid-s2572" xml:space="preserve">Ve-
              <lb/>
            rùm quò ratio iſta ſit magis perſpicua, eſto currus gravitatis
              <lb/>
            notæin cognitæ acclivitatis collem pertrabendus. </s>
            <s xml:id="echoid-s2573" xml:space="preserve">Ajo ſtaticam,
              <lb/>
            ut 4 exemplo 9 propaſ. </s>
            <s xml:id="echoid-s2574" xml:space="preserve">perſpicitur; </s>
            <s xml:id="echoid-s2575" xml:space="preserve">docere quæpotentiaſit currui
              <lb/>
            æqualis, boc eſt, ſitu æquiponderet non habita motus aut impe-
              <lb/>
            dimentorumratione, cujus generis ſunt illa ſingularium par-
              <lb/>
            tium ut axium in ſuis ſyringibus, rotarum in plateis, ac deni{q́ue}
              <lb/>
            totius currus in aere. </s>
            <s xml:id="echoid-s2576" xml:space="preserve">Impedimentorum inquam potentia cum
              <lb/>
            catholica non ſit à ſtaticæ præceptis rejicienda, quia eius ad po-
              <lb/>
            tentiam moventem ratio unica & </s>
            <s xml:id="echoid-s2577" xml:space="preserve">certa nulla apparet. </s>
            <s xml:id="echoid-s2578" xml:space="preserve">Quod
              <lb/>
            refutatis eorum argumentis qui in ponderibus deprimentibus
              <lb/>
            ſecus ſtatuunt, arguerem, niſi in ſtatica tantum doctrinæ præ-
              <lb/>
            cepta instituere ſatius ducerem, alibi priſtinũ & </s>
            <s xml:id="echoid-s2579" xml:space="preserve">inveteratum
              <lb/>
            de ponderũ affectionibus errorem firmis rationibus retecturus. </s>
            <s xml:id="echoid-s2580" xml:space="preserve">
              <lb/>
            Cæterum æquilibritatis cognitio hic ſufficit; </s>
            <s xml:id="echoid-s2581" xml:space="preserve">enimverò ſiin li-
              <lb/>
            bræ utrâque lance tantundem ponderis collocetur, quamvis
              <lb/>
            librile ſeu jugum ſua habeat motus impedimenta, levi tamen
              <lb/>
            momento lances huc at que illuc impelluntur: </s>
            <s xml:id="echoid-s2582" xml:space="preserve">idque in cæteris
              <lb/>
            omnibus evenire certum eſt.</s>
            <s xml:id="echoid-s2583" xml:space="preserve"/>
          </p>
          <p style="it">
            <s xml:id="echoid-s2584" xml:space="preserve">At que bæc quidem de motus impedimentis dicta ſunto, </s>
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