Fabri, Honoré
,
Tractatus physicus de motu locali
,
1646
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N28327
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<
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397
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026/01/431.jpg
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tùm deſcenſu; </
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<
s
id
="
N28330
">quia tota GH eodem inſtanti cadit in AB; quippe H
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lb
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participat motum A per GA, & motum D per ED, quod clariſſimum
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eſt. </
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</
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<
p
id
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N28338
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type
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<
s
id
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N2833A
">Duodecimò, maior eſt ictus, ſi initio deſcenſus fuſtis AB tantillùm
<
lb
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retrò inclinet, vt GH; </
s
>
<
s
id
="
N28340
">quia B ab H in B plùs temporis ponit, quàm à
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lb
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Q, vt patet; </
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<
s
id
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N28346
">igitur diutiùs potentia manet applicata; </
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>
<
s
id
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N2834A
">igitur maiorem
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lb
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impetum producit; </
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>
<
s
id
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N28350
">igitur maior eſt ictus; </
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>
<
s
id
="
N28354
">debet autem in eo ſitu eſſe,
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in quo motus A in G ita temperetur cum motu B in H, vt eodem mo
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mento vtrumque feriat planum AB; </
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>
<
s
id
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N2835C
">ſi enim vel A attingat antè B, vel
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B antè A, minor eſt ictus, vt conſtat; </
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>
<
s
id
="
N28362
">quia totus motus ſimul non im
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peditur; </
s
>
<
s
id
="
N28368
">poteſt autem cognoſci ille ſitus vel illa inclinatio cognita pro
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portione motus circularis circa D, & circa A; </
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>
<
s
id
="
N2836E
">immò niſi retineatur
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DA; </
s
>
<
s
id
="
N28374
">haud dubiè A tanget ſolum AB ex G, antequam B deſcendat in B
<
lb
/>
ex H; </
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>
<
s
id
="
N2837A
">igitur attemperandus eſt motus fuſtis DA; </
s
>
<
s
id
="
N2837E
">præterea pondus in
<
lb
/>
deſcenſu auget ictum, deinde B deſcendit deorſum motu orbis & motu
<
lb
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centri: </
s
>
<
s
id
="
N28386
">præterea B poteſt in aſcenſu maiorem arcum ſui orbis decurre
<
lb
/>
re, quàm in deſcenſu, vel æqualem: denique maior eſt ictus quando po
<
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tentia toto niſu euidente fuſtis AB plùs temporis ante ictum in ſuo mo
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tu inſumit. </
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>
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<
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type
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<
s
id
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N28392
">Decimotertiò, eſt etiam aliud flagelli genus pluribus catenulis ferreis
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lb
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inſtructi, ex quibus ſingulis ſinguli ferrei globi aliquando ſpiculis, &
<
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clauis armati pendent, quorum grauiſſimus eſt ictus propter rationes
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lb
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prædictas; </
s
>
<
s
id
="
N2839C
">præſertim cùm catenula, ſeu funiculus, faciliùs adduci, & in
<
lb
/>
flecti poſſit, quàm extremus ille fuſtis, de quo ſuprà; </
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>
<
s
id
="
N283A2
">neque deeſt ar
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tificium; quo quis hoc armorum genere vtens etiam contra plures ſeſe
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tueri poſſit. </
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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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N283AC
">Decimoquartò, denique vulgare eſt phœnomenum illud funiculi, ſen
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flagelli, quo ſcilicet initio remouetur manubrij extremitas, mox ſtatim
<
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adducitur, ex qua productione, & adductione per vndantem funem
<
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propagatur impetus vſque ad eiuſdem extremitatem nodo vt plurimùm
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adſtrictam. </
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>
<
s
id
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N283B7
">Hinc primò ſtrepitus ille aurigis familiariſſimus; </
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<
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id
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N283BB
">quippe
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maxima fit aëris colliſio in extremo fune; immo, & partium tenſio, ſeu
<
lb
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diſtractio propter motus illos contrarios productionis. </
s
>
<
s
id
="
N283C3
">Secundò, hinc
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diſtrahitur funis, & quaſi laceratur, diſtractis ſcilicet tenuiſſimis illis
<
lb
/>
filamentis, ex quibus conſtat. </
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>
<
s
id
="
N283CA
">Tertiò, hinc ſtringitur illa extremitas no
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lb
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do, tùm vt acrior ſit ictus, tùm vt filamenta illa nodo illo contineantur. </
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>
<
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id
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N283CF
">
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Quartò, duplex eſt motus illius funis propter flexibilitatem; </
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>
<
s
id
="
N283D4
">hinc illæ
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vndæ ſeu ſpiræ; </
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>
<
s
id
="
N283DA
">nam remouetur caput funis, quod deinde ſequuntur
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lb
/>
aliæ partes per ſinuoſos flexus; ſed mox vbi adducitur idem caput, maios
<
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impetus producitur in aliis partibus. </
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>
<
s
id
="
N283E2
">Quintò, currentes vndæ ſeu flexus
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adductionis, quæ fit maiore impetu, quàm productio, tandem in
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primos flexus ſinuatos ab ipſa productione incurrunt: hinc augetur
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impetus, & motus extremitatis. </
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>
<
s
id
="
N283EC
">Sextò, adde quod licèt ſit tantùm, vel
<
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/>
productio, vel adductio flagelli, ſunt iidem ſerè effectus, ſed minimè
<
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/>
æquales, quia augetur continuò motus flexuum; </
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>
<
s
id
="
N283F4
">tùm quia funis verſus </
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