Galilei, Galileo, Mechanics, 1665
page |< < of 40 > >|
    <archimedes>
      <text>
        <body>
          <chap>
            <p type="main">
              <s>
                <pb xlink:href="070/01/004.jpg" pagenum="274"/>
              ſaid Inſtrument kept dry, when Water cannot but onely oblique­
                <lb/>
              ly be drawn up, which the ordinary uſe of the Bucket would not
                <lb/>
              effect, which riſeth and deſcends with its Rope perpendicu­
                <lb/>
              larly.</s>
            </p>
            <p type="main">
              <s>The third is a greater benefit, haply, then all the reſt that are
                <lb/>
              derived from Mechanick Inſtruments, and reſpects the aſſiſtance
                <lb/>
              which is borrowed of ſome Force exanimate, as of the ſtream of a
                <lb/>
              River, or elſe animate, but of leſſe expence by far, then that which
                <lb/>
              would be neceſſary for maintaining humane ſtrength: as when to
                <lb/>
              turn Mills, we make uſe of the Current of a River, or the ſtrength
                <lb/>
              of a Horſe, to effect that, which would require the ſtrength of five
                <lb/>
              or fix Men. </s>
              <s>And this we may alſo advantage our ſelves in raiſing
                <lb/>
              Water, or making other violent Motions, which muſt have been
                <lb/>
              done by Men, if there were no other helps; becauſe with one ſole
                <lb/>
              Veſſel we may take Water, and raiſe, and empty it where occaſion
                <lb/>
              requires; but becauſe the Horſe, or ſuch other Mover wanteth
                <lb/>
              Reaſon, and thoſe Inſtruments which are requiſite for holding and
                <lb/>
              emptying the Veſſel in due time, returning again to fill it, and one­
                <lb/>
              ly is endued with Force, therefore it's neceſſary that the Mecha­
                <lb/>
              nitian ſupply the naturall defect of that Mover, furniſhing it with
                <lb/>
              ſuch devices and inventions, that with the ſole application of it's
                <lb/>
              Force the defired effect may follow. </s>
              <s>And therein is very great
                <lb/>
              advantage, not becauſe that a Wheel or other Machine can enable
                <lb/>
              one to tranſport the ſame Weight with leſſe Force, and greater
                <lb/>
              Dexterity, or a greater Space than an equall Force, without thoſe
                <lb/>
              Inſtruments, but having Judgment and proper Organs, could have
                <lb/>
              done; but becauſe that the ſtream of a River coſteth little or
                <lb/>
              nothing, and the charge of keeping of an Horſe or other Beaſt,
                <lb/>
              whoſe ſtrength is greater then that of eight, or it may be more
                <lb/>
              Men, is far leſſe then what ſo many Men would be kept
                <lb/>
              for.</s>
            </p>
            <p type="main">
              <s>Theſe then are the benefits that may be derived from Mecha­
                <lb/>
              nick Inſtruments, and not thoſe which ignorant Engineers dream
                <lb/>
              of, to their own diſgrace, and the abuſe of ſo many Princes,
                <lb/>
              whilſt they undertake impoſſible enterprizes; of which, both
                <lb/>
              by the little which hath been hinted, and by the much which
                <lb/>
              ſhall be demonſtrated in the Progreſſe of this Treatiſe, we ſhall
                <lb/>
              come to aſſure our ſelves, if we attentively heed that which ſhall
                <lb/>
              be ſpoken.</s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
Impressum