Galilei, Galileo, The systems of the world, 1661

Page concordance

< >
Scan Original
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
< >
page |< < of 948 > >|
    <archimedes>
      <text>
        <body>
          <chap>
            <p type="main">
              <s>
                <pb xlink:href="065/01/058.jpg" pagenum="52"/>
              our parts muſt needs be very obſervable; certain ſpots and other
                <lb/>
              notable things in thoſe parts, being one while diſcernable, and
                <lb/>
              another while not. </s>
              <s>A like variation may alſo be obſerved towards
                <lb/>
              the North and South extremities of the ſame
                <emph type="italics"/>
              Diſcus
                <emph.end type="italics"/>
              (or Surface)
                <lb/>
              according as the Moons poſition is in one or the other Section of
                <lb/>
              its Dragon; For, if it be North, ſome of its parts towards the
                <lb/>
              North are hid, and ſome of thoſe parts towards the South are
                <lb/>
              diſcovered, and ſo on the contrary. </s>
              <s>Now that theſe
                <lb/>
                <arrow.to.target n="marg153"/>
                <lb/>
              ces are really true, is verified by the
                <emph type="italics"/>
              Teleſcope,
                <emph.end type="italics"/>
              for there be in
                <lb/>
              the Moon two remarkable ſpots, one of which, when the Moon
                <lb/>
              is in the meridian, is ſituate to the Northweſt, and the other is
                <lb/>
              almoſt diametrically oppoſite unto it; and the firſt of theſe is
                <lb/>
              ſible even without the
                <emph type="italics"/>
              Teleſcope
                <emph.end type="italics"/>
              ; but the other is not. </s>
              <s>That
                <lb/>
              wards the Northweſt is a reaſonable great ſpot of oval figure,
                <lb/>
              parated from the other great ones; the oppoſite one is leſſe, and
                <lb/>
              alſo ſevered from the biggeſt, and ſituate in a very cleer field; in
                <lb/>
              both theſe we may manifeſtly diſcern the foreſaid variations, and
                <lb/>
              ſee them one after another; now neer the edge or limb of the
                <lb/>
              Lunar
                <emph type="italics"/>
              Diſcus,
                <emph.end type="italics"/>
              and anon remote, with ſo great difference that
                <lb/>
              the diſtance betwixt the Northweſt and the circumference of the
                <lb/>
                <emph type="italics"/>
              Diſcus
                <emph.end type="italics"/>
              is more than twice as great at one time, as at the other;
                <lb/>
              and as to the ſecond ſpot (becauſe it is neerer to the
                <lb/>
              rence) ſuch mutation importeth more, than twice ſo much in the
                <lb/>
              former. </s>
              <s>Hence its manifeſt, that the Moon, as if it were drawn
                <lb/>
              by a magnetick vertue, conſtantly beholds the Terreſtrial Globe
                <lb/>
              with one and the ſame aſpect, never deviating from the ſame.</s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg151"/>
                <emph type="italics"/>
              All the Earth
                <lb/>
              ſeeth half onely of
                <lb/>
              the Moon, & the
                <lb/>
              half onely of the
                <lb/>
              Moon ſeeth all the
                <lb/>
              Earth.
                <emph.end type="italics"/>
              </s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg152"/>
                <emph type="italics"/>
              From the Earth
                <lb/>
              we ſee more than
                <lb/>
              half the Lunar
                <lb/>
              Globe.
                <emph.end type="italics"/>
              </s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg153"/>
                <emph type="italics"/>
              Two ſpots in the
                <lb/>
              Moon, by which it
                <lb/>
              is perceived that
                <lb/>
              ſhe hath respect to
                <lb/>
              the centre of the
                <lb/>
              Earth in her
                <lb/>
              tion.
                <emph.end type="italics"/>
              </s>
            </p>
            <p type="main">
              <s>SAGR. Oh! when will there be an end put to the new
                <lb/>
              ſervations aud diſcoveries of this admirable Inſtrument?</s>
            </p>
            <p type="main">
              <s>SALV. </s>
              <s>If this ſucceed according to the progreſſe of other great
                <lb/>
              inventions, it is to be hoped, that in proceſſe of time, one may
                <lb/>
              arrive to the ſight of things, to us at preſent not to be imagined.
                <lb/>
                <arrow.to.target n="marg154"/>
                <lb/>
              But returning to our firſt diſcourſe, I ſay for the ſixth reſemblance
                <lb/>
              betwixt the Moon and Earth, that as the Moon for a great part
                <lb/>
              of time, ſupplies the want of the Suns light, and makes the
                <lb/>
              nights, by the reflection of its own, reaſonable clear; ſo the
                <lb/>
              Earth, in recompence, affordeth it when it ſtands in moſt need,
                <lb/>
              by reflecting the Solar rayes, a very cleer illumination, and ſo
                <lb/>
              much, in my opinion, greater than that which cometh from her to
                <lb/>
              us, by how much the ſuperficies of the Earth is greater than that
                <lb/>
              of the Moon.</s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg154"/>
                <emph type="italics"/>
              Sixthly, The
                <lb/>
              Earth and Moon
                <lb/>
              interchangeably do
                <lb/>
              illuminate.
                <emph.end type="italics"/>
              </s>
            </p>
            <p type="main">
              <s>SAGR. </s>
              <s>Hold there,
                <emph type="italics"/>
              Salviatus
                <emph.end type="italics"/>
              hold there, and permit me the
                <lb/>
              pleaſure of relating to you, how at this firſt hint I have penetrated
                <lb/>
              the cauſe of an accident, which I have a thouſand times thought
                <lb/>
                <arrow.to.target n="marg155"/>
                <lb/>
              upon, but could never find out. </s>
              <s>You would ſay, that the
                <lb/>
              fect light which is ſeen in the Moon, eſpecially when it is horned, </s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
Impressum