Salusbury, Thomas
,
Mathematical collections and translations (Tome I)
,
1667
Text
Text Image
Image
XML
Thumbnail overview
Document information
None
Concordance
Figures
Thumbnails
List of thumbnails
<
1 - 10
11 - 20
21 - 30
31 - 40
41 - 50
51 - 60
61 - 70
71 - 80
81 - 90
91 - 100
101 - 110
111 - 120
121 - 130
131 - 140
141 - 150
151 - 160
161 - 170
171 - 180
181 - 190
191 - 200
201 - 210
211 - 220
221 - 230
231 - 240
241 - 250
251 - 260
261 - 270
271 - 280
281 - 290
291 - 300
301 - 310
311 - 320
321 - 330
331 - 340
341 - 350
351 - 360
361 - 370
371 - 380
381 - 390
391 - 400
401 - 410
411 - 420
421 - 430
431 - 440
441 - 450
451 - 460
461 - 470
471 - 480
481 - 490
491 - 500
501 - 510
511 - 520
521 - 530
531 - 540
541 - 550
551 - 560
561 - 570
571 - 580
581 - 590
591 - 600
601 - 610
611 - 620
621 - 630
631 - 640
641 - 650
651 - 660
661 - 670
671 - 680
681 - 690
691 - 700
701 - 701
>
291
292
293
294
295
296
297
298
299
300
<
1 - 10
11 - 20
21 - 30
31 - 40
41 - 50
51 - 60
61 - 70
71 - 80
81 - 90
91 - 100
101 - 110
111 - 120
121 - 130
131 - 140
141 - 150
151 - 160
161 - 170
171 - 180
181 - 190
191 - 200
201 - 210
211 - 220
221 - 230
231 - 240
241 - 250
251 - 260
261 - 270
271 - 280
281 - 290
291 - 300
301 - 310
311 - 320
321 - 330
331 - 340
341 - 350
351 - 360
361 - 370
371 - 380
381 - 390
391 - 400
401 - 410
411 - 420
421 - 430
431 - 440
441 - 450
451 - 460
461 - 470
471 - 480
481 - 490
491 - 500
501 - 510
511 - 520
521 - 530
531 - 540
541 - 550
551 - 560
561 - 570
571 - 580
581 - 590
591 - 600
601 - 610
611 - 620
621 - 630
631 - 640
641 - 650
651 - 660
661 - 670
671 - 680
681 - 690
691 - 700
701 - 701
>
page
|<
<
of 701
>
>|
<
archimedes
>
<
text
>
<
body
>
<
chap
>
<
p
type
="
main
">
<
s
>
<
pb
xlink:href
="
040/01/318.jpg
"
pagenum
="
298
"/>
motion ſtraight forwards, it goeth to the matutine conjunction;
<
lb
/>
and moreover it being true, that when it appeareth bigge it ſhews
<
lb
/>
with a corniculate figure, and when it appeareth little, it ſeems
<
lb
/>
perfectly round, theſe appearances, I ſay, being true, I do not ſee
<
lb
/>
how one can chooſe but affirm the ſaid ſtar to revolve in a circle
<
lb
/>
<
arrow.to.target
n
="
marg527
"/>
<
lb
/>
bout the Sun, for that the ſaid circle cannot in any wiſe be ſaid
<
lb
/>
to encompaſſe or to contain the Earth within it, nor to be
<
lb
/>
our to the Sun, that is between it and the Earth, nor yet
<
lb
/>
riour to the Sun. </
s
>
<
s
>That circle cannot incompaſſe the Earth,
<
lb
/>
cauſe
<
emph
type
="
italics
"/>
Venus
<
emph.end
type
="
italics
"/>
would then ſometimes come to oppofition with the
<
lb
/>
Sun; it cannot be inferiour, for then
<
emph
type
="
italics
"/>
Venus
<
emph.end
type
="
italics
"/>
in both its
<
lb
/>
ons with the Sun would ſeem horned; nor can it be ſuperiour,
<
lb
/>
for then it would alwayes appear round, and never cornicular;
<
lb
/>
and therefore for receit of it I will draw the circle CH, about
<
lb
/>
the Sun, without encompaſſing the Earth.</
s
>
</
p
>
<
p
type
="
margin
">
<
s
>
<
margin.target
id
="
marg526
"/>
Venus
<
emph
type
="
italics
"/>
very greas
<
lb
/>
towards the
<
lb
/>
ctive conjunction
<
lb
/>
and very ſmall
<
lb
/>
wards the
<
lb
/>
tine.
<
emph.end
type
="
italics
"/>
</
s
>
</
p
>
<
p
type
="
margin
">
<
s
>
<
margin.target
id
="
marg527
"/>
Venus
<
emph
type
="
italics
"/>
<
lb
/>
rily proved to move
<
lb
/>
about the Sun.
<
emph.end
type
="
italics
"/>
</
s
>
</
p
>
<
p
type
="
main
">
<
s
>SALV. </
s
>
<
s
>Having placed
<
emph
type
="
italics
"/>
Venus,
<
emph.end
type
="
italics
"/>
it is requiſite that you think of
<
lb
/>
<
emph
type
="
italics
"/>
Mercury,
<
emph.end
type
="
italics
"/>
which, as you know, alwayes keeping about the Sun,
<
lb
/>
doth recede leſſe diſtance from it than
<
emph
type
="
italics
"/>
Venus
<
emph.end
type
="
italics
"/>
; therefore conſider
<
lb
/>
with your ſelf, what place is moſt convenient to aſſign
<
lb
/>
<
arrow.to.target
n
="
marg528
"/>
</
s
>
</
p
>
<
p
type
="
margin
">
<
s
>
<
margin.target
id
="
marg528
"/>
<
emph
type
="
italics
"/>
The revolution of
<
emph.end
type
="
italics
"/>
<
lb
/>
Mercury
<
emph
type
="
italics
"/>
concluded
<
lb
/>
to be about the Sun,
<
lb
/>
within the Orb of
<
emph.end
type
="
italics
"/>
<
lb
/>
Venus.</
s
>
</
p
>
<
p
type
="
main
">
<
s
>SIMP. </
s
>
<
s
>It is not to be queſtioned, but that this Planet
<
lb
/>
ing
<
emph
type
="
italics
"/>
Venus,
<
emph.end
type
="
italics
"/>
the moſt commodious place for it will be, a leſſer
<
lb
/>
cle within this of
<
emph
type
="
italics
"/>
Venus,
<
emph.end
type
="
italics
"/>
in like manner about the Sun, being
<
lb
/>
that of its greateſt vicinity to the Sun, an argument, an evidence
<
lb
/>
ſufficiently proving the vigour of its illumination, above that of
<
lb
/>
<
emph
type
="
italics
"/>
Venus,
<
emph.end
type
="
italics
"/>
and of the other Planets, we may therefore upon theſe
<
lb
/>
conſiderations draw its Circle, marking it with the Characters
<
lb
/>
BG.</
s
>
</
p
>
<
p
type
="
main
">
<
s
>
<
arrow.to.target
n
="
marg529
"/>
</
s
>
</
p
>
<
p
type
="
margin
">
<
s
>
<
margin.target
id
="
marg529
"/>
Mars
<
emph
type
="
italics
"/>
neceſſarily
<
lb
/>
includeth within its
<
lb
/>
Orb the Earth, and
<
lb
/>
alſo the Sun.
<
emph.end
type
="
italics
"/>
</
s
>
</
p
>
<
p
type
="
main
">
<
s
>SALV. </
s
>
<
s
>But
<
emph
type
="
italics
"/>
Mars,
<
emph.end
type
="
italics
"/>
Where ſhall we place it?</
s
>
</
p
>
<
p
type
="
main
">
<
s
>SIMP.
<
emph
type
="
italics
"/>
Mars,
<
emph.end
type
="
italics
"/>
Becauſe it comes to an oppoſition with the Sun,
<
lb
/>
its Circle muſt of neceſſity encompaſs the Earth; But I ſee that it
<
lb
/>
muſt neceſſarily encompaſs the Sun alſo, for coming to
<
lb
/>
on with the Sun, if it did not move over it, but were below it, it
<
lb
/>
would appear horned, as
<
emph
type
="
italics
"/>
Venus
<
emph.end
type
="
italics
"/>
and the Moon; but it ſhews
<
lb
/>
wayes round, and therefore it is neceſſary, that it no leſs includ</
s
>
</
p
>
<
p
type
="
main
">
<
s
>
<
arrow.to.target
n
="
marg530
"/>
<
lb
/>
eth the Sun within its circle than the Earth. </
s
>
<
s
>And becauſe I
<
lb
/>
member that you did ſay, that when it is in oppoſition with the
<
lb
/>
Sun, it ſeems 60 times bigger than when it is in the conjunction,
<
lb
/>
me thinks that a Circle about the Centre of the Sun, and that
<
lb
/>
eth in the earth, will very well agree with theſe
<
emph
type
="
italics
"/>
Phænomena,
<
emph.end
type
="
italics
"/>
<
lb
/>
which I do note and mark D I, where
<
emph
type
="
italics
"/>
Mars
<
emph.end
type
="
italics
"/>
in the point D, is near
<
lb
/>
to the earth, and oppoſite to the Sun; but when it is in the point
<
lb
/>
I, it is at Conjuction with the Sun, but very far from the Earth.
<
lb
/>
<
arrow.to.target
n
="
marg531
"/>
<
lb
/>
And becauſe the ſame appearances are obſerved in
<
emph
type
="
italics
"/>
Jupiter
<
emph.end
type
="
italics
"/>
and
<
lb
/>
<
emph
type
="
italics
"/>
Saturn,
<
emph.end
type
="
italics
"/>
although with much leſſer difference in
<
emph
type
="
italics
"/>
Jupiter
<
emph.end
type
="
italics
"/>
than in
<
lb
/>
<
emph
type
="
italics
"/>
Mars,
<
emph.end
type
="
italics
"/>
and with yet leſſe in
<
emph
type
="
italics
"/>
Saturn
<
emph.end
type
="
italics
"/>
than in
<
emph
type
="
italics
"/>
Jupiter
<
emph.end
type
="
italics
"/>
; me thinks I </
s
>
</
p
>
</
chap
>
</
body
>
</
text
>
</
archimedes
>