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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 463, page id 779785487:0521
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DA.
L. 1B. TII. DE REER ACYIONB, QC.
currie radius retractus productus;
v. 8. Crradius incidens AZ, Erque
AL s angalus oppolirus ansulo
retractionis, cerre quo punctum
concurlus s longius dilcedet d
cenero lucidi A; angulus AL 8
exirmaiOr, VE PatCE ex TerImIMIS;
inor vero contra, quo propius
ad iplum A accedet; IgITUI CMIM
radius obliquior incidens Faciae
deinde maiorem angulum retra.
ctionis, minorem verominus obli-
quus, per Hypoch. 1. V. 3. AZ, na-
iorem; AHLminorem; AC, adhuc
minorem; cerre radius retractus
relpondens incidenti AZ, COnCUT
rec cum perpendiculari BA, SI PFO-
ducarur, in puncto, quod longius
dictat ab A, quam illud, in quo
concurrir cum eodem peipendieu-
lari, radius retractus productus,
relpondens incidenri AFI; ee hoc
adhuc longius, quam illud, in quo
concurrit refractus, relpondens in-
cidenti AG, XC.
DROP. ZZXV
ne nullum ex prantis punctis,
est centrum; à quo lex diffusionis
accixi possit; Cur enim vnum po.
tius quam aliud: Elinc arcuS Fy
non est circuli; s enim eller arenS
circuli, ex aliquo cenero communi
describeretur; sed nullum cen-
erum commune cs. in quo scilicer
omnes radii retracti producti, cum
Derpendiculari COnCUTTANE, per
ProP. 33. isicur arcus Fy non est
arcuscirculi; Hinc quodlibet cen-
erum ex perdicis, rni rantum ra-
dio comperie, concurrenti scilicee
cum perpendiculari: porro ve ha-
beatur linea rerr inans aeguiualenss
c A= longicudo radii, diFuli FaM-
Scque A 3. aequalis AX; haud du-
bie linea F 3. terminar omnia leg-
menca radii immerti medio dento,
quae relpondent legmentis, per ra-
rum incidencibus; maiora scilicer,
rel minora, quacenus maiori, vel
minori incidenci relpondent, ve
supea dictum est; masis vero vel
minus incuruara, quarenus maio-
rem, vel minorem incurnationem
lex diffusionis postular, de quo
Paulo POI.
P ROP. Z Z ZVF.
Centrum lucidi A, in hoc casa,
illud est, unde lex diffasionis acci-
picur: Cum enim nullum sic aliud
Cupea, vel intra A; sc eamen ali-
quod quippenulla Ac diffulio lu-
minisrniformicer, difformiter, nisi
lex diftusionis ab aliguo CenErO aC-
cipiatur, cerre praedictum centrum
iplum A esse necesse es; hinc lu-
iven in Cuperticic Er, est ad lumen
in superticie DZ, ve haec superti-
cies, ad illam, hoc est re quadra-
cum DA, 2d quadracum EA, Per
2X. 5. Ouaeres quaenam AC LinCa:
F. 3, vel Superticies, ex illa relul-
tans: Relpondeo rix polle detini
ri. Sed demus esse ellipricam;
vel parabolicam, hinc quo radio-
cum minor ditserencia elt, Curua.
illa accedic proxiis ad circulum, v.
8 sinc duo radii AE, A 3, vETU-
Pra dixi, quorum ille parcim per
rarum AB, parcim per denlum BE,
A 3. vero per rarum rantum dif-
Fundatur, aEcus curux CA F 3 5
Cinc alii duo radii AZ, AD ; ITa VE.
sit minor differentia AZ, AB, quam.
A 3, AE; COFEC AECAS DZ accedir
propius ad arcum circuli, quaim.
F. 3,Vc conscat ex Geometrin: Flinc
cum per rarum, ve supra dictum est, 62,  F. 8 ,. nOM EUNE AECUS prO-
porrionalo