Fabri, Honoré
,
Tractatus physicus de motu locali
,
1646
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451 - 480
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<
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45
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xlink:href
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026/01/077.jpg
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<
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<
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Corollarium
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1.
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<
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<
s
id
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N13EA8
">Colligemus etiam quid dicendum ſit de malleorum ictu; </
s
>
<
s
id
="
N13EAC
">ſit enim
<
lb
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malleus F æqualis malleo G (in his vna fere manubrij longitudinis ha
<
lb
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betur ratio) ducatur arcus NM, itemque OG; </
s
>
<
s
id
="
N13EB4
">ictus mallei G eſt ferè
<
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ſubduplus alterius, dum vterque malleus ſit æqualis; </
s
>
<
s
id
="
N13EBA
">dixi ferè, quia
<
lb
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motus totius mallei G non eſt omninò ſubduplus motus mallei F, quia
<
lb
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ſcilicet trapezus OD eſt minor ſubduplo alterius NE; </
s
>
<
s
id
="
N13EC2
">quotâ vero parte
<
lb
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ſit minor facilè poteſt ſciri opera Geometriæ: ſed hæc omnia determi
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nabimus. </
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>
</
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<
p
id
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type
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<
s
id
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<
emph
type
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center
"/>
<
emph
type
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Theorema
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emph.end
type
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74.
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<
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">
<
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type
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italics
"/>
Si daretur potentia motrix, quæ ſemper agere poſſet, impetus poſſet intendi
<
lb
/>
in infinitum
<
emph.end
type
="
italics
"/>
; </
s
>
<
s
id
="
N13EE5
">pater, quia quocumque dato motu poteſt dari velocior in
<
lb
/>
infinitum; igitur poteſt dari impetus intenſior, & intenſior in infinitum. </
s
>
</
p
>
<
p
id
="
N13EEB
"
type
="
main
">
<
s
id
="
N13EED
">
<
emph
type
="
center
"/>
<
emph
type
="
italics
"/>
Scholium.
<
emph.end
type
="
italics
"/>
<
emph.end
type
="
center
"/>
</
s
>
</
p
>
<
p
id
="
N13EF9
"
type
="
main
">
<
s
id
="
N13EFB
">Hîc obſerua nouum diſcrimen, quod intercedit inter impetum, &
<
lb
/>
alias qualitates; </
s
>
<
s
id
="
N13F01
">quæ fortè non poſſunt intendi in infinitum, ratio diſ
<
lb
/>
criminis eſt, quia totus calor extenſus in maiore ſubiecto non poteſt
<
lb
/>
produci in minore, in quo eadem cauſa eumdem ſemper effectum pro
<
lb
/>
ducit; </
s
>
<
s
id
="
N13F0B
">quia ſcilicet agit vniformiter difformiter; at verò impetus exten
<
lb
/>
ſus in magno
<
expan
abbr
="
denſoq́ue
">denſoque</
expan
>
malleo poteſt producere æqualem in maximâ
<
lb
/>
ferè pilâ. </
s
>
</
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>
<
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id
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type
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<
s
id
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N13F19
">
<
emph
type
="
center
"/>
<
emph
type
="
italics
"/>
Theorema
<
emph.end
type
="
italics
"/>
75.
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type
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center
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</
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</
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id
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type
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<
s
id
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N13F27
">
<
emph
type
="
italics
"/>
Impetus ſimilis, id eſt, ad
<
expan
abbr
="
eãdem
">eandem</
expan
>
lineam determinatus, & æqualis in in
<
lb
/>
tenſione, non poteſt intendere alium ſimilem
<
emph.end
type
="
italics
"/>
; </
s
>
<
s
id
="
N13F36
">Probatur, quia agit tantùm ad
<
lb
/>
extra, vt tollat impedimentum per Th. 44. ſed eorum mobilium, quæ
<
lb
/>
verſus
<
expan
abbr
="
eãdem
">eandem</
expan
>
partem pari velocitate mouentur, neutrum impedit al
<
lb
/>
terius motum, vt conſtat; igitur impetus ſimilis, &c. </
s
>
</
p
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p
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type
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<
s
id
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<
emph
type
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center
"/>
<
emph
type
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italics
"/>
Scholium.
<
emph.end
type
="
italics
"/>
<
emph.end
type
="
center
"/>
</
s
>
</
p
>
<
p
id
="
N13F52
"
type
="
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">
<
s
id
="
N13F54
">Obſerua de impetu ſimili id tantùm dici; </
s
>
<
s
id
="
N13F58
">ſimili inquam id eſt non
<
lb
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modò eiuſdem intenſionis; </
s
>
<
s
id
="
N13F5E
">ſed etiam eiuſdem lineæ: </
s
>
<
s
id
="
N13F62
">ſi enim alterum
<
lb
/>
deſit, haud dubiè ſimilis impetus non eſt; </
s
>
<
s
id
="
N13F68
">ſic impetus quatuor grad. in
<
lb
/>
tendere poteſt impetum duorum graduum; </
s
>
<
s
id
="
N13F70
">licèt vterque ad
<
expan
abbr
="
eãdem
">eandem</
expan
>
li
<
lb
/>
neam ſit determinatus; </
s
>
<
s
id
="
N13F7A
">ſi verò ad diuerſas lineas determinentur; etiam
<
lb
/>
impetus vt duo poteſt intendere impetum vt quatuor. </
s
>
</
p
>
<
p
id
="
N13F80
"
type
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main
">
<
s
id
="
N13F82
">Obſeruabis præterea hoc Theorema ita eſſe intelligendum, vt impe
<
lb
/>
tus mobilis præeuntis nullo modo impediatur; alioquin mobile ſucce
<
lb
/>
dens omninò aliud vrgeret, vt conſtat. </
s
>
</
p
>
<
p
id
="
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type
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">
<
s
id
="
N13F8C
">
<
emph
type
="
center
"/>
<
emph
type
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italics
"/>
Corollarium.
<
emph.end
type
="
italics
"/>
<
emph.end
type
="
center
"/>
</
s
>
</
p
>
<
p
id
="
N13F98
"
type
="
main
">
<
s
id
="
N13F9A
">Hinc ſimile poteſt in aliquo caſu agere in ſimile; </
s
>
<
s
id
="
N13F9E
">vnde rectè colligo
<
lb
/>
id tantùm dictum eſſe ab Ariſtotele de qualitatibus alteratiuis; </
s
>
<
s
id
="
N13FA4
">quid
<
lb
/>
verò accidat, cum mobile graue mobili alteri ſuperponitur; dicemus
<
lb
/>
infrà. </
s
>
</
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</
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