Fabri, Honoré
,
Tractatus physicus de motu locali
,
1646
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<
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id
="
N1137F
">
<
p
id
="
N1379E
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type
="
main
">
<
s
id
="
N137F4
">
<
pb
pagenum
="
38
"
xlink:href
="
026/01/070.jpg
"/>
que lege, vt impetus agat quantum poteſt, & omnes partes mobilis
<
lb
/>
moueantur æquali motu. </
s
>
</
p
>
<
p
id
="
N13805
"
type
="
main
">
<
s
id
="
N13807
">
<
emph
type
="
center
"/>
<
emph
type
="
italics
"/>
Corollarium
<
emph.end
type
="
italics
"/>
1.
<
emph.end
type
="
center
"/>
</
s
>
</
p
>
<
p
id
="
N13814
"
type
="
main
">
<
s
id
="
N13816
">Hinc reijcis illos, qui volunt à globo æquali produci in æquali ſub
<
lb
/>
duplum impetum; in ſubduplo ſubtriplum; in ſubquadruplo ſubquin
<
lb
/>
tuplum; ratio illorum eſt; </
s
>
<
s
id
="
N1381E
">quia duo globi æquales inſtanti contactus
<
lb
/>
perinde ſe habent, atque ſi conflarent vnum corpus; </
s
>
<
s
id
="
N13824
">ſed ſi conflarent
<
lb
/>
vnum corpus quilibet ſubduplum impetum haberet; </
s
>
<
s
id
="
N1382A
">ſi verò globus cum
<
lb
/>
alio ſubduplo faceret vnum mobile; </
s
>
<
s
id
="
N13830
">haud dubiè minor, id eſt, ſubduplus
<
lb
/>
haberet tantùm ſubtriplum impetum; atque ita deinceps; </
s
>
<
s
id
="
N13836
">hoc totum
<
lb
/>
falſiſſimum eſt; </
s
>
<
s
id
="
N1383C
">nam primò ſi globus æqualis acciperet tantùm ſubdu
<
lb
/>
plum impetum ab alio, ſubduplo tantùm motu ferretur; </
s
>
<
s
id
="
N13842
">igitur ſubdu
<
lb
/>
plum ſpatium decurreret, quod eſt contra experientiam, & Th. 47. Se
<
lb
/>
cundò, ratio propoſita nulla eſt; </
s
>
<
s
id
="
N1384A
">quia quando globus impactus impellit
<
lb
/>
alium, eſt veluti potentiâ, quæ cum tota ſua vi, & cum impetu agit,
<
lb
/>
cuius nulla pars transfertur in alium globum; </
s
>
<
s
id
="
N13852
">nec enim migrat de
<
lb
/>
de ſubiecto in ſubiectum, ſed producit ſibi æqualem: </
s
>
<
s
id
="
N13858
">equidem ſi duo
<
lb
/>
globi æquales eſſent vel coniuncti, vel contigui in linea directionis,
<
lb
/>
quilibet pro rata acciperet impetus producti partem à potentia applica
<
lb
/>
ta; </
s
>
<
s
id
="
N13862
">ſi eſſent æquales, quiſque ſubduplum: ſi alter ſubduplus ſubtri
<
lb
/>
plum, &c. </
s
>
<
s
id
="
N13868
">ſed hæc ſunt ſatis facilia. </
s
>
</
p
>
<
p
id
="
N1386B
"
type
="
main
">
<
s
id
="
N1386D
">Obijci fortè poſſet ab aliquo primò experientia; </
s
>
<
s
id
="
N13871
">videmus enim ſæpè
<
lb
/>
globum impulſum in ludo Tudiculario moueri tardiùs globo impellen
<
lb
/>
te; </
s
>
<
s
id
="
N13879
">reſpondeo id ſæpè accidere; </
s
>
<
s
id
="
N1387D
">tùm quia linea directionis non connec
<
lb
/>
tit centra vtriuſque globi; </
s
>
<
s
id
="
N13883
">igitur minor eſt ictus per Th 52. tùm quia
<
lb
/>
globus impellens, vel impulſus deficiunt à perfecta ſphæra; </
s
>
<
s
id
="
N13889
">tùm quia
<
lb
/>
non eſt perfecta æqualitas globorum; adde quod quò accuratiùs prædi
<
lb
/>
ctæ leges obſeruantur, ipſi motus ad æqualitatem propiùs accedunt, vt
<
lb
/>
conſtat experientia. </
s
>
</
p
>
<
p
id
="
N13893
"
type
="
main
">
<
s
id
="
N13895
">Obiici poſſet ſecundò deſtrui aliquid impetus globi impellentis ab ipſo
<
lb
/>
ictu, vt conſtat experientia; </
s
>
<
s
id
="
N1389B
">igitur illa pars impetus, quæ deſtruitur, non
<
lb
/>
producit nouum impetum in globo impulſo; </
s
>
<
s
id
="
N138A1
">Reſpondeo deſtrui quidem
<
lb
/>
aliquid impetus in globo impacto, vt videbimus infrà; </
s
>
<
s
id
="
N138A7
">cum tamen de
<
lb
/>
ſtruatur tantùm ſequenti poſt ictum inſtanti; </
s
>
<
s
id
="
N138AD
">certè cum exiſtat adhuc
<
lb
/>
ipſo inſtanti contactus, neceſſariò agit, quippe aliquid vltimo inſtanti
<
lb
/>
poteſt agere; </
s
>
<
s
id
="
N138B5
">adde quod illud ipſum repugnat manifeſtæ experientiæ; </
s
>
<
s
id
="
N138B9
">
<
lb
/>
licèt enim aliquando deſtruatur totus impetus in globo impacto, quod
<
lb
/>
ſæpè accidit in ludo Tudiculario, nam illicò ſiſtit pila eburnea; alius
<
lb
/>
tamen globus velociter mouetur, cuius effectus rationem infrà addu
<
lb
/>
cemus. </
s
>
</
p
>
<
p
id
="
N138C4
"
type
="
main
">
<
s
id
="
N138C6
">Obijci poſſet tertiò inde ſequi progreſſum in infinitum, nam globus
<
lb
/>
A impactus in globum B impellet cum æquali motu, & B in C etiam
<
lb
/>
æquali, C in D, atque ita deinceps; </
s
>
<
s
id
="
N138CE
">modò illi globi ita ſtatuantur, vt
<
lb
/>
linea directionis per omnium centra rectà ducatur; </
s
>
<
s
id
="
N138D4
">Reſpondeo, vel il-</
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>
</
p
>
</
chap
>
</
body
>
</
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>
</
archimedes
>