Galilei, Galileo
,
The systems of the world
,
1661
Text
Text Image
Image
XML
Thumbnail overview
Document information
None
Concordance
Figures
Thumbnails
Page concordance
<
1 - 30
31 - 60
61 - 90
91 - 120
121 - 150
151 - 180
181 - 210
211 - 240
241 - 270
271 - 300
301 - 330
331 - 360
361 - 390
391 - 420
421 - 450
451 - 480
481 - 510
511 - 540
541 - 570
571 - 600
601 - 630
631 - 660
661 - 690
691 - 720
721 - 750
751 - 780
781 - 810
811 - 840
841 - 870
871 - 900
901 - 930
931 - 948
>
Scan
Original
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
<
1 - 30
31 - 60
61 - 90
91 - 120
121 - 150
151 - 180
181 - 210
211 - 240
241 - 270
271 - 300
301 - 330
331 - 360
361 - 390
391 - 420
421 - 450
451 - 480
481 - 510
511 - 540
541 - 570
571 - 600
601 - 630
631 - 660
661 - 690
691 - 720
721 - 750
751 - 780
781 - 810
811 - 840
841 - 870
871 - 900
901 - 930
931 - 948
>
page
|<
<
of 948
>
>|
<
archimedes
>
<
text
>
<
body
>
<
chap
>
<
p
type
="
main
">
<
s
>
<
pb
xlink:href
="
065/01/086.jpg
"
pagenum
="
80
"/>
darkneſſe; for that that matter which admits the paſſage of the
<
lb
/>
Suns rayes thorow a ſpace of two thouſand miles, muſt needs be
<
lb
/>
ſo tranſparent, that it would very weakly reſiſt them in a
<
lb
/>
dredth, or leſſer part of that thickneſſe; nevertheleſſe, the term
<
lb
/>
which ſeparateth the part illuminated from the obſcure, is
<
lb
/>
dent, and as diſtinct, as white is diſtinct from black; and
<
lb
/>
ſpecially where the Section paſſeth through the part of the Moon,
<
lb
/>
that is naturally more clear and montanous; but where the old
<
lb
/>
ſpots do part, which are certain plains, that by means of their
<
lb
/>
ſpherical inclination, receive the rayes of the Sun obliquely,
<
lb
/>
there the term is not ſo diſtinct, by reaſon of the more dimme
<
lb
/>
lumination. </
s
>
<
s
>That, laſtly, which he ſaith, how that the ſecondary
<
lb
/>
light doth not diminiſh and languiſh, according as the Moon
<
lb
/>
creaſeth, but conſerveth it ſelf continually in the ſame efficacy;
<
lb
/>
is moſt falſe; nay it is hardly ſeen in the quadrature, when, on
<
lb
/>
the contrary, it ſhould appear more ſplendid, and be viſible after
<
lb
/>
the
<
emph
type
="
italics
"/>
crepuſculum
<
emph.end
type
="
italics
"/>
in the dark of night. </
s
>
<
s
>Let us conclude therefore,
<
lb
/>
that the Earths reflection is very ſtrong upon the Moon; and that,
<
lb
/>
which you ought more to eſteem, we may deduce from thence
<
lb
/>
other admirable congruity between the Moon and Earth;
<
lb
/>
<
arrow.to.target
n
="
marg204
"/>
<
lb
/>
ly, that if it be true, the Planets operate upon the Earth by their
<
lb
/>
motion and light, the Earth may probably be no leſſe potent in
<
lb
/>
operating reciprocally upon them with the ſame light, and
<
lb
/>
venture, motion alſo. </
s
>
<
s
>And though it ſhould not move, yet may
<
lb
/>
it retain the ſame operation; becauſe, as it hath been proved
<
lb
/>
ready, the action of the light is the ſelf ſame, I mean of the light
<
lb
/>
of the Sun reflected; and motion doth nothing, ſave only vary
<
lb
/>
the aſpects, which fall out in the ſame manner, whether we make
<
lb
/>
the Earth move, and the Sun ſtand ſtill, or the contrary.</
s
>
</
p
>
<
p
type
="
margin
">
<
s
>
<
margin.target
id
="
marg204
"/>
<
emph
type
="
italics
"/>
The Earth may
<
lb
/>
ciprocally operate
<
lb
/>
upon Cœleſtial
<
lb
/>
dies, with its light.
<
emph.end
type
="
italics
"/>
</
s
>
</
p
>
<
p
type
="
main
">
<
s
>SIMPL. </
s
>
<
s
>None of the Philoſophers are found to have ſaid, that
<
lb
/>
theſe inferiour bodies operate on the Cœleſtial, nay,
<
emph
type
="
italics
"/>
Ariſtotle
<
emph.end
type
="
italics
"/>
<
lb
/>
firmes the direct contrary.</
s
>
</
p
>
<
p
type
="
main
">
<
s
>SALV.
<
emph
type
="
italics
"/>
Aristotle
<
emph.end
type
="
italics
"/>
and the reſt, who knew not that the Earth and
<
lb
/>
Moon mutually illuminated each other, are to be excuſed; but
<
lb
/>
they would juſtly deſerve our cenſure, if whileſt they deſire that
<
lb
/>
we ſhould grant and believe with them, that the Moon operateth
<
lb
/>
upon the Earth with light, they ſhould deny to us, who have
<
lb
/>
taught them that the Earth illuminates the Moon, the operation
<
lb
/>
the Earth hath on the Moon.</
s
>
</
p
>
<
p
type
="
main
">
<
s
>SIMPL. </
s
>
<
s
>In ſhort, I find in my ſelf a great unwillingneſſe to
<
lb
/>
admit this commerce, which you would perſwade me to be
<
lb
/>
twixt the Earth and Moon, placing it, as we ſay, amongſt the
<
lb
/>
number of the Stars; for if there were nothing elſe, the great
<
lb
/>
ſeparation and diſtance between it and the Cœleſtial bodies, doth
<
lb
/>
in my opinion neceſſarily conclude a vaſt diſparity between them.</
s
>
</
p
>
</
chap
>
</
body
>
</
text
>
</
archimedes
>