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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 475, page id 779785487:0533
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iden
etia
15.
M
et
AE
112
10
L. TB. III. D E REF R A C T IONE, BEC.
BicP, in S; ee P videbir BL, in Z;
hinc M videbir P in duobus locis,
Ecilicet in P, _ in S; pari modo P
videbic M, in MI, e in Z; hinc
cum intima regio est valde rorida,
altrum in duobus locis videri po.
celt; v. 8. Gc oculus in P, atrum
in M, horizOn MP, cerre videbi-
cur ixMI, e in Z; posiro quod
altitudo rorantis aeris lic NVB; quo-
odo vero actrum infra horizon-
tem existens, lupra, Per retta-
ctionem videri poltit, opcraretra-
ctionis, Facile dictu est; lic enim
horizon DA, EE asteum infra ho-
rizontem in MI, SE Cuperkcies (u-
Prema roridi aerisq V Y; (EL2-
dius NV; FeFTInGIEUE VEESIS PeE-
pendicularem V B, v. 9. in VA;
igitur oculus policus in a videbie
actrum in L; igicur supra horizOn.
cem; denique in prilmare vitreo.
multa mirifica obleruabis, quae Cx
retractione praedicta pendent, v. 8.
manifestum recressum radii intia
virrum, pro quo vide PrOp. 306.
lib. de coloribus, in Scholio, nI-
eris 3. 4, 6. 7. 8. 10. Omicto hic,
quomodo refractionis opera, ra-
dii concrabantur, colligantur,
distratantur, modo in parallelos,
1odo in non parallelos; quia de
his omnibus; e aliis benemulris,
ex professo, agam in dioprrica;
hunc tancum superest, ve duo Fa-
ciam; primum est, re obiectiones, (I
qua tieri poltune, contra praemilla,
dilsoluam: alcerum, ve aliorum Pen-
centias refellam, verumque duobus
propolicionibus complector.
PROD. XLVII
Refelluntur objectiones, quae contra
praemissam de refractionibus doctri-
nam fieri possunt.
. Retractio videtur Aeri pron
Pter aliquod impedimentum; 
enimradius incidens non impedi-
FCEUE, cur ab insticuro cramice de-
Recteret, verenera deRectir; lcd in
praemilsa doctrina, nullum penituis
impedimentum astignarum est:
Respondeo non impediri quidem
luminis radium, re luminis radius
CA, ab Tolure, quiaae que capax, illius
Tubiectum est. medium densum, ac
rarum; subiectum inquam, cui hxec
qualicas reuera insie; impedieue
camen diffulio secundum peaenios
radios; difcusio inquam, Tub cali
leces se conditione, ad quam Cci-
licer lamen ex nacura Cua deterrmi-
natum est, re luo loco demonstra-
ui; quomodo vero impediacur dit-
fulionis lex, secundum coldem ra-
dios, de Cub iildem angulis, ex di-
etis perlpicuum reddirum ett; quare
HIC NON repetO, in Lupea ridelis.
2. TTulla videtur esse racio, cur
aequalibus angulis incidencia, eum
ex raco, in densum, tum ex deno,
in rarum, aequales criam anguli re
Fractionis nOn COPCTANE; V. 8. EI
angulo incidentia 45. CZ FaFO, in
denlum, angulus retraccionis 15.
relpondeat, cerre angulo inciden-
Tia 45. Cx den(o, II LaCUM, anOU
lus refractionis 1s. relpondere de-
berer; sed hoc praemista doccrinae
repugnat, in qua angulo inciden-
tix minori exdenso, in raruI. ee
maiori, ex raro, in dentum, a qua-
lis angulus retractionis comperie:
Respondeo obiectionem hancnul-
lius penicis momenci esse; cu enim
radi, vbiprius refracti (unE, CxTATO
in densum, ica retringantur deinde
ex denlo in rarum, ve linc paralleli,
cum lcomentis incidentibus, Cx ia-
1o, in dentum; vi Copra demostraui,
et oculis incidane, Tub iildem peni-