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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. 7:1-2; ZEN Leibn. Marg. 7:1-2)
# Folio 465, page id 779785487:0523
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LIB. III. DE REFRACTIOHE, RC.
natuT; e quo plis ab ea recedune,
magis incuruarur: sed radius obli-
quius incidens secae arcus magis
Ttaequales; id est secundum maio-
sem inaqualicaris proportionem,
VE Paree; igitur agis INCUTUAEMI,
ec retringitur; acque adcd angu-
dus retractionis maior est: IlInC
secunda pars prima hyporheleos
demonstraca inanet, non tantum
quod sic, verum etiam proprei quid
sic, constabie.
PROP. ZXZ YETI.
Sine centrum lucidi, a plano di-
aersi medii, plus, sine minus distet,
eidem angulo incidentia, idem an-
culus refractionis respondet; Sit
enim radius incidentia AK; Cen-
erum lucidi A; planum diuerlime.
dii LO;angulus retractionis TIKF;
acrollatur planu L C, in OS; LINE
que HIP, N o, quadrances cllix.
Peos; hic quidem limilis BC, vel
FD; ille vero limilis MB; igieuE
VEMA, ad VTA, ica MB, 2d LIP;
d vENIo, ad MC, icaNA, ad
MA; isicur cadem est proportio
inaequalicarIS, INEEF MK, _ MI,
de InTeF NT, de NR; igitur xque
incuruari debet radius, igitur ideim
angulus retractionis eidem angulo
inculencia semper respondet, siuc
lucidum procul, sinc propesarua-
TUIT; E haC est hyxoch. quarca, de
qua iam constac, proprer quid (Ici
Dices commiltum clchactenus vi
tiolum circulum, nempe demon.
Aras radium incuruari, quia diffu-
So Ec lecundum superficies dissimi.
les ellipricas; de ideo AE secuM-
dum has, quia refringitur radius;
Relpondeo non esse circulum vi-
ciolum, sed Felicem regressum; naren
Tom. IL
465
deretractione, quod Sc, ipPo Penlu
coonolco; quod vero lumen distun-
dacue rniformirer, difformiter, cum
Scilicet radii paralleli non lunt, ex
cerris principiis habeo; quod au-
tem hanc diffusionem terminee el-
lipsis, vel alia hgura xquiualens,
cum radii ex raro in dentum inci-
dine, eo modo, quo dictum cA
Tupra. perspicuum redditur, ex dif-
Fusionis cerrissima reguta; quod
eriam elliples sine dissimiles, ex ca-
dem regula constar; igicur (1 ex bis
omnibus concludani, radium obli-
que incidentem necellario retrin-
si; certe ririolum circalum nor
COriETO.
PROP. XXZIZ.
duo medium, in quod radius
obligue incidic, densons est, eo maior
est anculus refractionis, posito scilicet
eode incidentiae angulo: Sic enim cen. FiB. 31.
trum lucidi A, sectio communis
mediorum FP; sic radius AL, PCF L2-
rum cancum diftulus, e FHI seo-
mentum denlo immertum; allinna-
tur AS, aequalis AI; Sicque qua-
deans ellipleosFISD; sic radius in-
cidentia AO, e retractus ONI, C0
modo, quo a me lupra dictum cst,
nec enim hic Lepetere vacac; sir
idem Peomencum FTI, immerlum
medio densiori, ita ve radius per
earum cancum diffutuS, (IE AR; 2C
FUAEUE AI, aequalis AR; tacque
Mlliplis FITK, iplique similis GOF;
DE GPC, est Cmilis EISD; haud du-
bie maior est proporrio inaequali
TAEIS, INEeF FIM. GO, quam IITeK
TIV, 6O; X maior inter 6960,
quam inter OP, CO; igitur maior
incurnatio ele debet; VE PAFCE CX
dictis; nempe ve aequalicas nullam
incuruationem dicit, ita maior
inae gUd