Salusbury, Thomas, Mathematical collections and translations (Tome I), 1667

List of thumbnails

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            <p type="main">
              <s>
                <pb xlink:href="040/01/169.jpg" pagenum="151"/>
              likewiſe moveth with like velocity, nor doth it depart from reſt,
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              but from a motion equal to that of the Earth, wherewith it
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              mixeth the ſupervenient motion of deſcent, and of thoſe two
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              poſeth a third which is tranſverſal or ſide-ways.</s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg338"/>
                <emph type="italics"/>
              The ſolution of
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              the argument
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              ken from
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              Guns ſhot towards
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              the East & Weſt.
                <emph.end type="italics"/>
              </s>
            </p>
            <p type="main">
              <s>SIMP. </s>
              <s>But for Gods ſake, if it move tranſverſly, how is it that
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              I behold it to move directly and perpendicularly? </s>
              <s>This is no
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              ter than the denial of manifeſt ſenſe; and if we may not believe
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              ſenſe, at what other door ſhall we enter into diſquiſitions of
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              ſophy?</s>
            </p>
            <p type="main">
              <s>SALV. </s>
              <s>In reſpect to the Earth, to the Tower, and to our ſelves,
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              which all as one piece move with the diurnal motion together with
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              the ſtone, the diurnal motion is as if it never had been, and
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              eth inſenſible, imperceptible, and without any action at all; and
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              the onely motion which we can perceive, is that of which we
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              take not, that is the deſcent gliding along the ſide of the Tower:
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              You are not the firſt that hath felt great repugnance in
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              ding this non-operating of motion upon things to which it is
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              mon.</s>
            </p>
            <p type="main">
              <s>SAGR. </s>
              <s>Now I do remember a certain conceipt, that came one
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                <arrow.to.target n="marg339"/>
                <lb/>
              day into my fancy, whilſt I ſailed in my voyage to
                <emph type="italics"/>
              Aleppo,
                <emph.end type="italics"/>
              whither
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              I went Conſul for our Countrey, and poſſibly it may be of ſome
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              uſe, for explaining this nullity of operation of common motion,
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              and being as if it never were to all the partakers thereof. </s>
              <s>And if
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              it ſtand with the good liking of
                <emph type="italics"/>
              Simplicius,
                <emph.end type="italics"/>
              I will reaſon with
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              him upon that which then I thought of by my ſelf alone.</s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg339"/>
                <emph type="italics"/>
              A notable caſe
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              of
                <emph.end type="italics"/>
              Sagredus,
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              to ſhew
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              the non-operating
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              of common motion.
                <emph.end type="italics"/>
              </s>
            </p>
            <p type="main">
              <s>SIMP. </s>
              <s>The novelty of the things which I hear, makes me not
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              ſo much a patient, as a greedy and curious auditor: therefore go
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              on.</s>
            </p>
            <p type="main">
              <s>SAGR. </s>
              <s>If the neb of a writing pen, that I carried along with
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              me in the ſhip, through all my navigation from
                <emph type="italics"/>
              Venice
                <emph.end type="italics"/>
              to ^{*}
                <emph type="italics"/>
              Scan-
                <emph.end type="italics"/>
                <lb/>
                <arrow.to.target n="marg340"/>
                <lb/>
                <emph type="italics"/>
              deron,
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              had had a facultie of leaving viſible marks of its whole
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              age, what ſigns, what marks, what lines would it have left?</s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg340"/>
              * Aleſſandretta.</s>
            </p>
            <p type="main">
              <s>SIMP. </s>
              <s>It would have left a line diſtended from
                <emph type="italics"/>
              Venice
                <emph.end type="italics"/>
              thither,
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              not perfectly ſtreight, or to ſay better, diſtended in a perfect arch
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              of a circle, but in ſome places more, in ſome leſs curved, according
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              as the veſſel had gone more or leſs fluctuating; but this its
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              cting in ſome places a fathom or two to the right hand or to the
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              left, upwards or downwards, in a length of many hundred miles,
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              would have brought but little alteration to the intire tract of the
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              line, ſo that it would have been hardly ſenſible; and without any
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              conſiderable error, might have been called the part of a perfect
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              arch.</s>
            </p>
            <p type="main">
              <s>SAGR. </s>
              <s>So that the true and moſt exact motion of the neb of
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              my pen would have alſo been an arch of a perfect circle, if the
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              veſſels motion, the fluctuation of the billows ceaſing, had been </s>
            </p>
          </chap>
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