Huygens, Christiaan, Christiani Hugenii opera varia; Bd. 1: Opera mechanica

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            <s xml:id="echoid-s4131" xml:space="preserve">
              <pb o="183" file="0259" n="285" rhead="HOROLOG. OSCILLATOR."/>
            modum ſuperiori propoſitione fuit oſtenſum. </s>
            <s xml:id="echoid-s4132" xml:space="preserve">Ergo, ſi fiat ut
              <lb/>
              <note position="right" xlink:label="note-0259-01" xlink:href="note-0259-01a" xml:space="preserve">
                <emph style="sc">Decentro</emph>
                <lb/>
                <emph style="sc">OSCILLA-</emph>
                <lb/>
                <emph style="sc">TIONIS</emph>
              .</note>
            quadratum ex 19″′ {1/10} ad quadratum ex 60″′, hoc eſt, ut 36481
              <lb/>
            ad 360000, ita 18 unciæ ad aliud, fient ped. </s>
            <s xml:id="echoid-s4133" xml:space="preserve">14. </s>
            <s xml:id="echoid-s4134" xml:space="preserve">unc. </s>
            <s xml:id="echoid-s4135" xml:space="preserve">9.
              <lb/>
            </s>
            <s xml:id="echoid-s4136" xml:space="preserve">lin. </s>
            <s xml:id="echoid-s4137" xml:space="preserve">6, altitudo deſcenſus perpendicularis, tempore unius
              <lb/>
            ſecundi. </s>
            <s xml:id="echoid-s4138" xml:space="preserve">Cum autem pes Horarius ſit ad Pariſienſem, ut
              <lb/>
            881 ad 864; </s>
            <s xml:id="echoid-s4139" xml:space="preserve">erit eadem altitudo, ad hanc menſuram redu-
              <lb/>
            cta, proxime pedum 15 & </s>
            <s xml:id="echoid-s4140" xml:space="preserve">unciæ unius. </s>
            <s xml:id="echoid-s4141" xml:space="preserve">Atque hæc cum
              <lb/>
            accuratiſſimis experimentis noſtris prorſus conveniunt. </s>
            <s xml:id="echoid-s4142" xml:space="preserve">in
              <lb/>
            quibus punctum illud temporis, quo cafus finitur, non au-
              <lb/>
            rium aut oculi judicio diſcernitur; </s>
            <s xml:id="echoid-s4143" xml:space="preserve">quorum neutrum hic ſa-
              <lb/>
            tis tutum eſt; </s>
            <s xml:id="echoid-s4144" xml:space="preserve">ſed ſpatium deſcendendo peractum, alio mo-
              <lb/>
            do, quem hic exponere tentabimus, abſque ullo errore cog-
              <lb/>
            noſcitur.</s>
            <s xml:id="echoid-s4145" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s4146" xml:space="preserve">Penduli, ad parietem tabulamve erectam, ſuſpenſi dimi-
              <lb/>
            dia oſcillatio moram temporis, cadendo abſumpti, indi-
              <lb/>
            cat. </s>
            <s xml:id="echoid-s4147" xml:space="preserve">Cujus ſphærula, ut eodem momento ac plumbum caſui
              <lb/>
            deſtinatum dimittatur, utraque filo tenui connexa tenentur,
              <lb/>
            quod admoto igne inciditur. </s>
            <s xml:id="echoid-s4148" xml:space="preserve">Sed prius, caſuro plumbo, fu-
              <lb/>
            niculus alius adnectitur, ejus longitudinis, ut, cum totus
              <lb/>
            exierit à plumbo tractus, nondum ad parietem illidatur pen-
              <lb/>
            dulum. </s>
            <s xml:id="echoid-s4149" xml:space="preserve">Funiculi ejus caput alterum, regulæ chartaceæ,
              <lb/>
            aut ex tenui membrana paratæ, cohæret; </s>
            <s xml:id="echoid-s4150" xml:space="preserve">ita ad parietem ta-
              <lb/>
            bulamve applicatæ, ut trahentem funem facile ſequi poſſit,
              <lb/>
            rectáque ſecundum longitudinem ſuam deſcendere; </s>
            <s xml:id="echoid-s4151" xml:space="preserve">eo loci
              <lb/>
            tranſiens, quo penduli ſphæra ad tabulam accidet. </s>
            <s xml:id="echoid-s4152" xml:space="preserve">Abſum-
              <lb/>
            pto igitur funiculo toto, pars inſuper regulæ deorſum tra-
              <lb/>
            hitur à cadente plumbo, priuſquam pendulum ad tabulam
              <lb/>
            pertingat. </s>
            <s xml:id="echoid-s4153" xml:space="preserve">Quæ quanta ſit pars, ſphæra fuligine leviter in-
              <lb/>
            fecta, regulamque præterlabentem ſignans, indicat. </s>
            <s xml:id="echoid-s4154" xml:space="preserve">Huc
              <lb/>
            autem addita funiculi longitudine, ſpatium cadendo emen-
              <lb/>
            ſum certò definitum habetur.</s>
            <s xml:id="echoid-s4155" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s4156" xml:space="preserve">Aëris autem occurſum, quaſi nullus eſſet in his intelligi-
              <lb/>
            gimus, ut menſura cadentibus corporibus præfixa cum ex-
              <lb/>
            perimentis exacte conſentiat. </s>
            <s xml:id="echoid-s4157" xml:space="preserve">Nec ſane tantus eſt ille, ut in
              <lb/>
            altitudinibus his, quò aſcendere datur, ſenſibile diſcrimen
              <lb/>
            inducere poſſit; </s>
            <s xml:id="echoid-s4158" xml:space="preserve">dummodo ſolida corpora è metallo, aut, </s>
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