Fabri, Honoré
,
Dialogi physici in quibus de motu terrae disputatur
,
1665
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advolvi, acum magneticam libratam in orbem agi perniciſſime; libræ
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lancem in perfecto æquilibrio ſtatutam, vel attolli, ſi ſurſum ſuccinum
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applicetur, vel deprimi, ſi deorſum, dixi, poſt affrictum ſuccini; quia ta
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men ad diverſi corporis ſuperficiem prædictus affrictus fieri poteſt, ob
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ſervavi etiam, diverſos inde effectus ſequi; nempe ſi affrictus fiat ad
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pannum omnis generis, ſed præſertim ad coactilem, tunc ſuccinum ma
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ximè trahit; ad telam etiam, ſed minus, item ad cutem, chirothecam,
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corium, modo pinguius non ſit, chartam, oloſericum, barbam, capillos,
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ad oſſa, metalla, cornu, ceram, ligna, teſtam, vitrum, vel nihil, vel pa
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rum admodum: item ſi affrictus fiat ad cutem, humore, melle, balſa
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mo, atramento, adipe ferè omnis generis, therebinthina, ſucco mali au
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rei, ſapone, aquis diſtillatis ferè omnis generis, dilutam ſeu perfuſam,
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itemque ſi pulvere aſperſo affrictus fiat; ſecus tamen ſi butyro, ſuillo
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adipe, oleo fere omnis generis; tunc enim ſaltem parum trahit, niſi ſal
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oleo admixtum ſit, quod mihi ante aliquot annos indicavit vir acutiſſimi
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ingenij meique amantiſſimus Laurentius Magalottus. </
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<
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id
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s.002062
">Accedit, quod
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non ſuccinum modò, vt vulgò dicitur, vi electrica pollet, ſed alia multa
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corpora, vt Lacca, quàm vulgò ceram Hiſpanicam vocant, gagates,
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concretum ſcilicet bituminis genus, adamas, multique lapilli; non ta
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men vnio; cryſtallus & multa alia, nullum tamen ligni genus, teſtæ, me
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talli, carnis &c. </
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<
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">Illud vnum obſervo, corpus omne electrica virtute pol
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lens eſſe vitrificum, vt ſic loquar, id eſt, quod ad inſtar vitri malleo frangi
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ſeu teri, non verò duci, aut findi, aut friari poſſit. </
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Auguſtin.
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<
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id
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"> Tam multa, tam varia in vnum congeſſiſti experimenta, re
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ticitis tamen rationibus, vt mentem potiùs obrueris, quàm refeceris, aut
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recrearis; ſingula quæſo te repetamus & reducamus ad certa principia,
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vt inde veritas phyſica eluceſcat, itaque ante omnia, ediſcere nobis tuam
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hypotheſim. </
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Antim.
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<
s
id
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s.002067
"> In vno tantùm corpore electrico hypotheſim meam ſtatuo,
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cùm ſcilicet pro aliis omnibus eadem ratio militet; accipio igitur Laccam
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ſeu ceram hiſpanicam, tum quia magis obvia eſt, tum quia vi electrica
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maximè pollet; illamque adhibui ad omnia ferè experimenta, conſtat
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multo igne; quippe accenditur; & multa vligine, quia ducitur ſeu ne
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tur in filamina viſcofa; ignis autem qui ineſt, perenni actione in partes
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vicinas agit, quas haud dubiè rarefacit, ac proinde intra pororum an
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guſtias contractæ inde nituntur erumpere, qua data porta; pori enim ob
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ſtructi ſunt; ſublata autem hujuſmodi obſtructione per affrictum, ma
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teria intus compreſſa erumpit ad inſtar ſulphurei jaculi; & quia viſcoſa
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eſt, netur in filamen tenuiſſimum, quod præ impetu, quo erumpit, cum
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intus altera ejus extremitas, propter viſcoſitatem aliis partibus ejuſdem
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materiæ adhæreat; maximè tenditur; at ſtatim ceſſante impetu, redu
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citur vt chorda tenſa, & ſecum aſportat corpuſcula facilè mobilia, quæ
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occurrunt. </
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Chryſoc.
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<
s
id
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s.002069
"> Hoc fortè gratis dicitur; quis enim filamina illa vnquam vi
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dit, aut ſenſit? </
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<
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id
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s.002070
">quis alia multa his ſimilia non fingat? </
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