Biancani, Giuseppe
,
Aristotelis loca mathematica
,
1615
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 - 355
>
191
192
193
194
195
196
197
198
199
200
<
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 - 355
>
page
|<
<
of 355
>
>|
<
archimedes
>
<
text
>
<
body
>
<
chap
>
<
p
type
="
main
">
<
s
id
="
s.003981
">
<
pb
pagenum
="
233
"
xlink:href
="
009/01/233.jpg
"/>
gulis ob dictam rationem non poteſt, quia radij viſuales, vt dictum eſt, in
<
lb
/>
diſcreti ſunt, & confuſi. </
s
>
<
s
id
="
s.003982
">
<
expan
abbr
="
neq;
">neque</
expan
>
hoc mirum, cùm multa videre nullo pacto poſ
<
lb
/>
ſimus, quamuis noſtro attingantur aſpectu, vt ea, quæ ſunt in tenebris, cui
<
lb
/>
ſimile accidit, cum quadratum à longè viſum videtur habere plurimos an
<
lb
/>
gulos; atq; adeò ad rotunditatem, ſi remoueatur adhuc, accedere, vt etiam
<
lb
/>
circulus videatur. </
s
>
<
s
id
="
s.003983
">Cùm enim, vt ſupra dixi, aſpectus in turbinis modum
<
lb
/>
procedat quoties figura conſpecta vlterius ſepoſita eſt, radij viſuales, qui ad
<
lb
/>
angulos tendant, quoniam & imbecilli, & pauci ſunt, ob dictam cauſam rem
<
lb
/>
aſſequi nequeunt: qui autem in mediam partem concurrunt, hi perſiſtere
<
lb
/>
poſſunt, vtpotè, conferti, & validi: ergò cum figura propè eſt, anguli
<
expan
abbr
="
quoq;
">quoque</
expan
>
<
lb
/>
aſpici poſſunt, aucta diſtantia non poſſunt. </
s
>
<
s
id
="
s.003984
">hac etiam de cauſa linea circu
<
lb
/>
laris valdè diſtans, & in ſitu, quo conuexum ad oculum rectà vergat: & in
<
lb
/>
Luna die octauo, quando dimidia eſt linea illa, quæ illuminatam partem à
<
lb
/>
non illuminata diuidit, recta videtur, quamuis circularis ſit, eſt enim in
<
lb
/>
ſphærico corpore deſignata. </
s
>
<
s
id
="
s.003985
">quando enim circunferentia propè eſt, viſus
<
lb
/>
diſcernere valet quanto pars altera, parte altera, ſit propior; vnde rotun
<
lb
/>
ditas apparet: at cùm procul abeſt rectè ſentire nequit, ſed æqualem par
<
lb
/>
tium ſitum cernere ſibi videtur,
<
expan
abbr
="
eamq́
">eamque</
expan
>
; propterea rectam iudicat. </
s
>
<
s
id
="
s.003986
">hæc igi
<
lb
/>
tur, quæ accidere viſui certum eſt, eadem ſimiliter radijs Solis conuenire
<
lb
/>
par eſt credere. </
s
>
<
s
id
="
s.003987
">ex quibus iam patere poteſt, cur lumen Solis per quadrila
<
lb
/>
teras figuras profluens illuminationem rotundam reddat.</
s
>
</
p
>
<
p
type
="
head
">
<
s
id
="
s.003988
">
<
emph
type
="
italics
"/>
De Lucis Figuratione.
<
emph.end
type
="
italics
"/>
</
s
>
</
p
>
<
p
type
="
main
">
<
s
id
="
s.003989
">
<
expan
abbr
="
Atq;
">Atque</
expan
>
hæc eſt ſolutio admirandi huius effectus ab Ariſt. allata, quæ
<
lb
/>
quoniam non paucas habet difficultates, aliam ex Maurolyco de
<
lb
/>
ſumptam, quæ ſatis demonſtratiua eſt, afferam.</
s
>
</
p
>
<
p
type
="
main
">
<
s
id
="
s.003990
">Primò igitur illud Perſpectiuus principium ſtatuendum eſt, ex
<
lb
/>
quolibet corporis lucidi puncto, ad quodlibet medij punctum, lumen rectis
<
lb
/>
lineis quoquouerſus emicare, ita vt lumen à quouis puncto lucidi, tanquam
<
lb
/>
à centro
<
expan
abbr
="
circumquaq;
">circumquaque</
expan
>
effuſum in modum ſphæræ diffundatur.</
s
>
</
p
>
<
p
type
="
main
">
<
s
id
="
s.003991
">Secundò, quò magis duorum vicinorum circulorum peripheriæ augen
<
lb
/>
tur, eò magis ad vnius circuli ſimilitudinem accedere; vt in hac figura cer
<
lb
/>
<
figure
id
="
id.009.01.233.1.jpg
"
place
="
text
"
xlink:href
="
009/01/233/1.jpg
"
number
="
143
"/>
<
lb
/>
nere licet, vbi ſunt primò duo parui
<
lb
/>
circuli circa centra A, & B, deſcripti,
<
lb
/>
quorum circunferentiæ creſcant
<
expan
abbr
="
vſq;
">vſque</
expan
>
<
lb
/>
ad circunferentias C D, & E F, quo in
<
lb
/>
cremento poſito, ſtatim vel ad ſenſum
<
lb
/>
manifeſtum eſt, has duas maiores pe
<
lb
/>
ripherias, magis referre vnius circuli
<
lb
/>
ſimilitudinem, quàm referant duo pa
<
lb
/>
rui circelli. </
s
>
<
s
id
="
s.003992
">quod ſi eſſent tres circelli,
<
lb
/>
qui augerentur, magis adhuc vnicum
<
lb
/>
circulum imitarentur;
<
expan
abbr
="
ſicq́
">ſicque</
expan
>
; deinceps,
<
lb
/>
quò plures eò perfectius: & quò magis </
s
>
</
p
>
</
chap
>
</
body
>
</
text
>
</
archimedes
>