Bernoulli, Daniel, Hydrodynamica, sive De viribus et motibus fluidorum commentarii

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            do inverſo, ſubmergatur tantum non totus, fore longitudines pendulorum
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            iſochronorum in ratione contraria orificiorum ſubmerſorum.</s>
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        <div xml:id="echoid-div152" type="section" level="1" n="120">
          <head xml:id="echoid-head156" xml:space="preserve">Scholium Generale.</head>
          <p>
            <s xml:id="echoid-s4031" xml:space="preserve">§. </s>
            <s xml:id="echoid-s4032" xml:space="preserve">24. </s>
            <s xml:id="echoid-s4033" xml:space="preserve">Quæ in hac ſectione continentur, quia novis hypotheſibus inni-
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            tuntur pleraque, eo magis operæ pretium erit experimentis tentare. </s>
            <s xml:id="echoid-s4034" xml:space="preserve">Ego
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            quidem diverſa inſtitui, non vacavit autem ſingula quæ mente conceperam
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            exequi: </s>
            <s xml:id="echoid-s4035" xml:space="preserve">quæ feci inferius recenſebo; </s>
            <s xml:id="echoid-s4036" xml:space="preserve">Interim ut tutius judicium ferri poſſit
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            de conſenſu experimentorum cum theoria, diſpiciendum prius erit pro re-
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            rum circumſtantiis, an & </s>
            <s xml:id="echoid-s4037" xml:space="preserve">quantum fere contractio venæ effluentis (cujus
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            naturam expoſui in ſect. </s>
            <s xml:id="echoid-s4038" xml:space="preserve">4.) </s>
            <s xml:id="echoid-s4039" xml:space="preserve">calculum turbare poſſit: </s>
            <s xml:id="echoid-s4040" xml:space="preserve">quod incommodum
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            maxima parte tolli poterit, ſi fiat ut orificii inferioris latera parvulum ali-
              <lb/>
            quem cylindrum efforment, vix dimidiæ lineæ altitudinis, qua de re animo
              <lb/>
            revolvatur experimentum quartum ad ſectionem quartam pertinens. </s>
            <s xml:id="echoid-s4041" xml:space="preserve">Deinde
              <lb/>
            etiam animus advertendus ad reſiſtentias ab adhæſione aquæ oriundas, quæ
              <lb/>
            quidem parum retardant motus, ſitempora oſcillationum reſpicias, multum
              <lb/>
            autem excurſionibus detrahunt, præſertim ſi tubi ſtrictiores & </s>
            <s xml:id="echoid-s4042" xml:space="preserve">longiores ſu-
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            mantur. </s>
            <s xml:id="echoid-s4043" xml:space="preserve">Igitur magis fidendum erit experimentis, quæ circa oſcillationum
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            tempora facta fuerint, quia hæc tempora à diminutione excurſionum non
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            multum admodum alterantur. </s>
            <s xml:id="echoid-s4044" xml:space="preserve">Ratione primi experimentorum generis, quo
              <lb/>
            excurſiones fluidorum in tubis, tam deſcenſus quam aſcenſus inquirendi ob-
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            ſervandique veniunt, hâc uſus fui circumſpectione, ut filum tubo circumvol-
              <lb/>
            verem eo in loco, ad quem aquas deſcenſuras vel aſcenſuras eſſe expectabam,
              <lb/>
            idemque filum poſt ſæpe repetitum experimentum ita tandem locavi, ut ſu-
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            perficies fluidi oſcillantis nec ultra nec citra excurreret. </s>
            <s xml:id="echoid-s4045" xml:space="preserve">Reliqua etiam loca,
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            quæ in tubo obſervanda erant, pariter filo circumvoluto notavi. </s>
            <s xml:id="echoid-s4046" xml:space="preserve">Quod deinde
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            ad tempora oſcillationum pertinet, quia hæ citiſſime decreſcunt fiuntque im-
              <lb/>
            perceptibiles & </s>
            <s xml:id="echoid-s4047" xml:space="preserve">plane nullæ, non potui illa aliter inquirere, quam exploran-
              <lb/>
            do poſt ſæpiſſime iteratum experimentum longitudinem penduli ſimplicis iſo-
              <lb/>
            chroni, quod dum oſcillabat digitum orificio tubi ſuperimpoſui eumque eo
              <lb/>
            præciſe temporis puncto removi, ut & </s>
            <s xml:id="echoid-s4048" xml:space="preserve">pendulum & </s>
            <s xml:id="echoid-s4049" xml:space="preserve">fluidum oſcillationem ſi-
              <lb/>
            mul inciperent.</s>
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