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# Title: [Physica, Id Est, Scientia Rerum Corporearum, In Decem Tractatus Distributa] Physica, Id Est, Scientia Rervm Corporearvm, In Decem Tractatvs Distribvta (shelfmarks Leibn. Marg. 7:3-4; ZEN Leibn. Marg. 7:3-4)
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PHPSIC_ YRACT. VI1.
eica per medium dittula retringi.
eur, croo non diffundieur in coi-
pusculisihoc argumento rlus lum,
ve probare lumen esse puram qua-
lirarem, quae dumrarat refiactio.
nis capax est; igirur eodem recté
probari riderur, rireurem Mione
cicam in pura qualicare diffundi:
Relpondeo negando primuim an-
cecedens, quod ramen nonnemo
sc probar; admonearur inquie la
mina ferrea inter Magnerem de
acum Ferream; ni( FFANOANEUE F2.
dii, vircus ipta secundum iplam
lamina crassicudinem deberer dif-
Fundi, aeque adeo poli cene in
axc cidem crastrudini parallelo;
sed aliquid hourx describendum
eAt, re res haec melius incelligatur:
Eig. 2. Ec Magnes A, cuius polus borca-
lis sIE B, australis C; SIC acuS Fer-
FeaTII, inera Ephaeram actinitaris
Praedicti Maoneris; sic lamina Fer-
reA INTerDOAIEa GK, CuIUS CFaMI
Eudo (E DF; hic enim lectionem
cancum laminae pro ipta lamina
adhibemus; sc radius vircuris
Magneriea diffu(x BI, cerre si
hic non frangererur, poli relicti
in Lamina CAenE IN AXC DF, VE
Patet; hoc eAtD coirec cum puin.
eto B, _ E, cum C; sed prote-
eto contrarium accidit; nam in
D _ F est idem polus, qui coir
cum B; in F vero e in C, CHt alter
Polus, qui fugie B, et coic cum
C. aeque adco in roca peripheria
daminae est idem polus; alter vero
in centro verimque xque dictante;
Sed hoc heri non porest, nis cadius
D E distrahacur versuIS F, _ C;
eroo retringieur.
Hioc eodem argumeneo, mirum
quancum nostra hypoth. contirme-
cuc. vE dicam insra, modo latis etic.
Rocendero, nullam in hOC CaTU
retractionem incercedere, quod lu-
culenter, Calcem meo iudicio, enin-
co; 1. in omni retractione cum Fa-
dius ex medio raro, in densum in-
cidie, incurvatur ad perpendicula-
rem, cum camen hic secus accide.
re videatur; nempe radius, ( in-
CurnaTuT, a perpendiculari inCur-
nacur: 2. nun quam radius perpen-
dicularis retringitur; cur enim in
unam porius, quam in aliam par-
cem; hic aurem li retractio eAt, r2-
dii perpendicularis est: 3. omnis
qualicas, guae retringirur, ad om-
nemmediorum inucarionem retrin-
Sirur; inde enim pecieur refractio.
nis racio; sed si interponatur la-
mina plumbea, vel aurea, radius
nullo modo a primo cramite rece-
dic: q. Quorielcumque eadiusre-
Fringitur in lamina, cuius plana
oppolica Cune parallela, perinde eAt
acque si nulla heret refractio; nam
radii pristino Racui reltiTUnEUE;
omitro aliasrationes, cum praedi.
cta rem penirus cnincant: Ouae
res cur igitur radii incuruantur in
illa lamina, hoc cA cur in peri-
pheria alcer polus lic, alrer in la-
MIMX CENTIO; exPECLA PATUIMPEEZ
hoc enim clarissime explicabimus
infra, ocendemulque, hunc ette-
ctum in nulla alia hypocheli ex-
plicari poste.
Obiic. sexro, virrus Magnerica
per medium diffula reftecticur; igi-
cur qualicas est: Respondeo pri-
mo, consequentiam hanc legiri-
nam non esse; nam eriam PONUS
reflectitur, qui in pura qualitare
non diffundicur, ve (uo loco de-
monstrarum est; adde quod, re-
Aexio maxime corporibus compe.
TIT, VE PateC ex lib. 6. tract. de moru
106.