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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)
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L1B. TII. DE L VCE EF LVMINE:
ria ad visionem affectio indenal. nulla retringuneur, licer mules
CAEUF.
Ouarco, distinguendum ese ca-
FCACCTANEUE.
Sexro, si moucaneur lucidum
lorem sensibilem tactu, à calore de illuminatum, in ea proportione
Censibili vilu; quanquam non di- Ve semper eadem intercedat distan-
cicur calor, quarenus est sensibilis cia, nullo modo destruitur lumen;
vitu, sed lumen; ille est maior in cum ad sic eadem caula conseruari.
ferro candenre; in Aamma, mi- ua, eodem modo applicaca.
nOr; hic vero contra maior in
Seprimo, si vel accedar luci-
Aamma, e minor in ferro; quia dum, vel longius recedat, destrui-
effectus caloris sensibilis cactu, id
est quatenus sensum tactus afticie.
cur lumen prius productum, de
nouum producieur; maius qui-
non modo est a puro calore, sed dem, si accesterie; minus vero, s
praelertim in calido Cublunari, a
secelserit: Dices, A recedat, par-
parriculisignis auolantibus, qua cem cancum luminis destrui, de
si ferrum tangas, manui cacim
adhaerene; ac vero effectus caloris,
qui vilum atticie, à puro calore
necellario est.
Oninco, hinc calor nostraris
ionis sentitur maior calore Colis,
per actionem radii directi, modo
ImanUS V. 9. PrOxime adnOvCAEHI;
ac vero radii Colares per retractio.
nem collecti, maxime rrunc, lecus
veco radii ab ione profecti, s per
refractionem colligantur; idem di-
co de reflexis, quamuis refexi re-
fractis longe maiore vi polleant;
rettexi inquam nostraris ionis; r2-
tio iltorum omnium manifesta est,
quia cum calor, qui a nostrare
ione diftunditur, consistar porissi-
mum in corpusculis igneis, re Fu-
se explicacum est lib. 1. pFOP. 46.
cum haec nullo modo viceum, in
quo Acrefractio, permeare possine,
quid miru si hris à puro calore, qui
modieus est, lepararis minor vis
calefactiua Cuperte; cumque disi-
cilius reRectancur, quam puri r2-
dii, minorem eriam effectum; peF
rellexionem, praestant, maiorem.
aliam remanere, rnde inus rC-
Cac lumen; sI vero accedat, noua
pars luminis producie, de priori
cemanenti comiunetq, maius lumen
efficie: Respondeo hoc dici non
Polle, proprer luminis (ve sic lo-
quar ) hecerogencitatem, quam
necellario propasario deliderac;
deinde lumen in eodem puncto il-
luminaci, actione communi, indi-
nisibilicer ab omnibus parcibus lu-
cidi producitur; isieur tocum lu-
men, si est nona actio, indinisibi
licer producitur, in eo puncto,
hoc criam contat ex PFOP. 54. e
55. idem prortus dico, E vel pro-
pius admoneaeur, vel longius re-
moucacur illuminarum.
Octauo, hinc lumen à Colari
luce productum in aëre, lingulis.
instancibus mucaeur; idest prius
destruitur, e nouum produeicur;
Ecilicet proprer morum Colis, qui
cum moneaeur, lingulis instanci-
bus, vel Ac propior, vel remorior;
2dde mocum perennem aëris; sed
quia nullo instanti, sine lumine rëe
elle viderur, nulla prorlus difte-
tamen, quam per retractionem, quia rencia obleruari porest.
NTOnd