Castelli, Benedetto, Of the mensuration of running waters, 1661

List of thumbnails

< >
71
71 		72
72
73
73 		74
74
75
75 		76
76
77
77 		78
78
79
79 		80
80
< >
page |< < of 137 > >|
    <archimedes>
      <text>
        <body>
          <chap>
            <p type="main">
              <s>
                <pb xlink:href="068/01/075.jpg" pagenum="61"/>
              to cauſe the Waters to riſe, and to turn them for the ſervice of
                <lb/>
              Mills, or the like. </s>
              <s>Now in theſe Caſes it is ſufficient, that one
                <lb/>
              erect upon the two extreames of the Weare two Pilaſters either
                <lb/>
              of Wood or Brick, which with the bottome of the Weare do
                <lb/>
              compoſe our Regulator, wherewith we may make our deſired
                <lb/>
              operation, yea the Chanel it ſelf diverted ſhall ſerve, without
                <lb/>
              making any other diverſion or union. </s>
              <s>And in brief, if the bu­
                <lb/>
              fineſſes be but managed by a judicious perſon, there may wayes
                <lb/>
              and helps be made uſe of, according to occaſion, of which it
                <lb/>
              would be too tedious to ſpeak, and therefore this little that hath
                <lb/>
              been hinted ſhall ſuſſice.</s>
            </p>
            <p type="head">
              <s>CONSIDERATION II.</s>
            </p>
            <p type="main">
              <s>From what hath been declared, if it ſhall be well under­
                <lb/>
              ſtood, may be deduced many benefits and conveniences,
                <lb/>
              not onely in dividing of Running Waters for infinite uſes
                <lb/>
              that they are put to in turning of Corne-Mills, Paper-Mills,
                <lb/>
              Gins, Powder-Mills, Rice-Mills, Iron Mills, Oil-Mills, Saw­
                <lb/>
              ing-Mills, Mirtle-Mills, Felling-Mills, Fulling-Mills, Silk-Mills,
                <lb/>
              and ſuch other Machines; but alſo in ordering Navigable Cha­
                <lb/>
              nels, diverting Rivers and Chanels of Waters, or terminating
                <lb/>
              and limiting the ſizes of Pipes for Fountains: In all which af­
                <lb/>
              fairs there are great errours committed, to the loſſe of much
                <lb/>
              expence, the Chanels and Pipes that are made, ſometimes not
                <lb/>
              being ſufficient to carry the deſigned Waters, and ſometimes they
                <lb/>
              are made bigger than is neceſſary; which diſorders ſhall be
                <lb/>
              avoided, if the Engineer be adviſed of the things aboveſaid: and
                <lb/>
              in caſe that to theſe Notions there be added the knowledge of
                <lb/>
              Philoſophy and Mathematicks, agreeable to the ſublime Diſco­
                <lb/>
              veries of
                <emph type="italics"/>
              Signore Galilæo,
                <emph.end type="italics"/>
              and the further improvement thereof
                <lb/>
              by
                <emph type="italics"/>
              Signore Evangeliſta Torricelli,
                <emph.end type="italics"/>
              Mathematician to the Grand
                <lb/>
                <emph type="italics"/>
              Duke of Tuſcany,
                <emph.end type="italics"/>
              who hath ſubtilly and admirably handled this
                <lb/>
              whole buſineſſe of Motion, one ſhall then come to the know­
                <lb/>
              ledge of particular notions of great curioſity in the Theoricks,
                <lb/>
              and of extraordinary benefit in the Practicks that daily occur in
                <lb/>
              theſe buſineſſes.</s>
            </p>
            <p type="main">
              <s>And to ſhew, in effect, of what utility theſe Notions are, I
                <lb/>
              have thought fit to inſert, in this place, the Conſiderations by
                <lb/>
              me made upon the Lake of
                <emph type="italics"/>
              Venice,
                <emph.end type="italics"/>
              and to repreſent,
                <lb/>
              at large, by the experience of the laſt year 1641. the moſt Se­
                <lb/>
              rene
                <emph type="italics"/>
              Erizzo,
                <emph.end type="italics"/>
              then Duke of the ſaid Republique. </s>
              <s>Being
                <lb/>
              therefore at
                <emph type="italics"/>
              Venice,
                <emph.end type="italics"/>
              in the year aforeſaid, I was requeſted by the
                <lb/>
              moſt Illuſtrious and moſt Excellent
                <emph type="italics"/>
              Signore Giovanni Baſa-
                <emph.end type="italics"/>
              </s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
Impressum