Barrow, Isaac, Lectiones opticae & geometricae : in quibus phaenomenon opticorum genuinae rationes investigantur, ac exponuntur: et generalia curvarum linearum symptomata declarantur

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            <s xml:id="echoid-s8364" xml:space="preserve">Nec per ſe quenquam tempus ſentire fatendum eſt
              <lb/>
            Semotum ab rerum motu placidáque quiete;</s>
            <s xml:id="echoid-s8365" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s8366" xml:space="preserve">Haud malè dixit Lucretius. </s>
            <s xml:id="echoid-s8367" xml:space="preserve">& </s>
            <s xml:id="echoid-s8368" xml:space="preserve">Philoſophus ipſe; </s>
            <s xml:id="echoid-s8369" xml:space="preserve">“Oταν {γρ}
              <unsure/>
            αὺπὶ μν
              <unsure/>
            δὲν
              <lb/>
              <note position="left" xlink:label="note-0182-01" xlink:href="note-0182-01a" xml:space="preserve">_Phyſ. IV._ 16.</note>
            μετασ
              <unsure/>
            άλλωμεν {τὴν} διά@ωιαν, ῆλάθ
              <unsure/>
            ωμεν μεταβά
              <lb/>
            {λλ}ον{τε}ς, {ου} δοκεῖ η
              <unsure/>
            μῖν {γρ}{γρ}νέναι
              <lb/>
            {γρ}éγ{ος}. </s>
            <s xml:id="echoid-s8370" xml:space="preserve">Re
              <unsure/>
            ctè quidem hoc, non videtur nobis, non apparet à ſomno
              <lb/>
            excitatis quantum temporis interceſſit; </s>
            <s xml:id="echoid-s8371" xml:space="preserve">at non hinc rectè colligitur,
              <lb/>
            Φανε{ρὁ}γ @π {ου}λ {ἐστι}ίν ἄν{εμ} κγ νήσεως {καὶ} μεταβλῆς ὁ {χο}ὁν{ος}. </s>
            <s xml:id="echoid-s8372" xml:space="preserve">Non perſen-
              <lb/>
            tiſcimus, ergò non eſt, illatio fallax, & </s>
            <s xml:id="echoid-s8373" xml:space="preserve">fallax ſomnus, qui fecit ut
              <lb/>
            nos duo ſemota temporis inſtantia connecteremus. </s>
            <s xml:id="echoid-s8374" xml:space="preserve">interim veriſſi-
              <lb/>
            mum illud; </s>
            <s xml:id="echoid-s8375" xml:space="preserve">@{σκ} η
              <unsure/>
            @ιησις, {το}σ@τ{ος} {καὶ} ό {γρ}όν{ος} ἁ@ δοκεῖ {γρ}{γρ}νέναι,
              <lb/>
            quantus nempe motus fuit, tantum tempus videtur extitiſſe; </s>
            <s xml:id="echoid-s8376" xml:space="preserve">neque
              <lb/>
            quum tantum tempus dicimus, aliud conſuevimus intelligere, quam
              <lb/>
            tantum motum intercedere potuiſſe, cujus ſcilicet extenſioni continuò
              <lb/>
            ſucceſſivæ rerum permanentiam imaginamur coëxtendi. </s>
            <s xml:id="echoid-s8377" xml:space="preserve">Cæterùm quia
              <lb/>
            tempus alveo ſemper æquali, non per vices nunc ſegniùs, tunc rapi-
              <lb/>
            diùs præterlabi concipimus (admiſsâ ſiquidem illâ diſparitate nullam
              <lb/>
            omninò computationem, aut dimenſionem admitteret) non ideò mo-
              <lb/>
            tus omnis æquè determinandæ dignoſcendæque temporis quantitati
              <lb/>
            cenſeatur accommodatus, at is præſertim qui ſummè ſimplex & </s>
            <s xml:id="echoid-s8378" xml:space="preserve">uni-
              <lb/>
            formis æquabili ſemper tenore progreditur; </s>
            <s xml:id="echoid-s8379" xml:space="preserve">mobili parem ubique
              <lb/>
            vim retinente, pérque medium uniforme delato. </s>
            <s xml:id="echoid-s8380" xml:space="preserve">Quare tempori de-
              <lb/>
            terminando tale quiddam mobile deligendum eſt, quod ſaltem quoad
              <lb/>
            motûs ſui periodos æqualem conſtanter impetum ſervat; </s>
            <s xml:id="echoid-s8381" xml:space="preserve">& </s>
            <s xml:id="echoid-s8382" xml:space="preserve">per æqua-
              <lb/>
            le ſpatium decurrit. </s>
            <s xml:id="echoid-s8383" xml:space="preserve">Et ad communem quidem uſum accipiendus
              <lb/>
            eſt ejuſmodi motus præcipuè notabilis, in promptu cunctis obvius, & </s>
            <s xml:id="echoid-s8384" xml:space="preserve">
              <lb/>
            ſenſus omnium incurrens, qualis eſt motus ſyderum, imprimìs _Solis_
              <lb/>
            _& </s>
            <s xml:id="echoid-s8385" xml:space="preserve">Lunæ_, mirificè ſibi per omnia conſtans, & </s>
            <s xml:id="echoid-s8386" xml:space="preserve">orbi terrarum con-
              <lb/>
            ſpicuus; </s>
            <s xml:id="echoid-s8387" xml:space="preserve">qui proinde nedum communi gentis humanæ ſuſſragio de-
              <lb/>
            putatus, at divino Creatoris conſilio aptus natus eſt huic uſui; </s>
            <s xml:id="echoid-s8388" xml:space="preserve">à quo
              <lb/>
            nempe pronunciatum legimus: </s>
            <s xml:id="echoid-s8389" xml:space="preserve">_Fiant luminaria in ſirmamento Cæli_,
              <lb/>
            _& </s>
            <s xml:id="echoid-s8390" xml:space="preserve">dividant diem ac noctem, & </s>
            <s xml:id="echoid-s8391" xml:space="preserve">ſint in ſigna, & </s>
            <s xml:id="echoid-s8392" xml:space="preserve">tempora
              <unsure/>
            , & </s>
            <s xml:id="echoid-s8393" xml:space="preserve">dies, &_</s>
            <s xml:id="echoid-s8394" xml:space="preserve">
              <lb/>
              <note position="left" xlink:label="note-0182-02" xlink:href="note-0182-02a" xml:space="preserve">
                <gap/>
              I. 14.</note>
            _annos._ </s>
            <s xml:id="echoid-s8395" xml:space="preserve">At quomodò, dices, cognoſcetur _æquabili ſolem motu ferri,_
              <lb/>
            _& </s>
            <s xml:id="echoid-s8396" xml:space="preserve">unum puta diem, aut annum alteri penitus exæquari, vel aqui_
              <lb/>
            _temporaneum eſſe?_ </s>
            <s xml:id="echoid-s8397" xml:space="preserve">Reſpondeo non aliter hoc ( excipiendo quòd à di-
              <lb/>
            vino teſtimonio colligatur) nobis innoteſcere, quàm cum aliis æqua-
              <lb/>
            libus motibus ipſum ſolis motum contendendo. </s>
            <s xml:id="echoid-s8398" xml:space="preserve">Si nempe deprehen-
              <lb/>
            datur ſolis motus in horologio ſolari (quod ſpatiorum à ſole in circulis
              <lb/>
            æquatori parallelis percurſorum penè eerto ac exquiſitè </s>
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