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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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L 1B. II. DE ALYER ATTOHE.
Elinc facile quoque determina-
tur diameter sphaerae: Cum enim
tora vis lucidi adaequet tocum lu-
men productum, hoc est torum
collectum Cupeticierum (phXEX;
cerre lumen dererminata perte-
ctionis, quod vlrimae Cuperhciei
inest, in maiore, vel minore tu-
perticie, producieur, quarenus
maior, vel minor est ris lucidi:
nempe quando in maiore produci-
cur, maior est in illa luminis porcio,
_ cum in lingulis Cuperticiebus
aequalis sic, inde cerre maiorem
effectum esse necesse est; qui scili-
cer maiori caulx comperie; quan-
dovero in minore Tupecheie lumen
illud decerminata perfectionis
producitur, minor estillius portio,
e cum aequalis porcio sic in reli-
qnis Superticiebus, CfeCTuS nCceI-
Pario minor est, qui minori caula
responder; Led maior effectus lu-
minis, maiori sphaera distribuitur;
minor vero, minori; & Sphaerx ma-
ioris, maior dianerer est; e mi-
nOc, minoris; igitur ex maiore. vel
MinOre eFectu, aiOE vel MIHOE
Sphaeras maior vel minor diamerer
SegnieuE: _ dexerIHAEUE.
DROD. LZ Z FI
TTinc effectas luminis sunt in ra-
tione composica vlrimarum superfi-
cierum, es semidiametrorum sphae-
rarum, quibus scilicet lumen diffu-
sum distribuitur: Hac propolitio
TOn FOrte inTeF vltimaS repOneN-
da esse videtur, et aliquid Habet,
quod cam commendet; sIC auEeI
cam demonstro: lumen in vltima
Tuperticie, Auc HXC MaIOI SE, CI.
ne minor, est eiuldem decermi-
narx perfectionis, per PFOP, 7L.
isicur luminis porriones in vlri-
mis luperticiebus, Cune ve iplae
Cupertcies; porro in lingulis su-
perlciebus ciuldem (phReER, TUNE
aquales luminis porriones, per
Prop. 59. cor demum Cune Cupech-
cies in qualibet (phraera, quor lune
puncta in axe, vel radio, vel se-
midiamerro; ioitur eRectus lumi-
AIS, Sihabeacur rantum cacio cniu-
Aiber Cuperticiei, lunc re iplae vlci-
mx Cuperacies; h vero tantum ha-
bearur ratio molis sphaera, vel
numeri superkcierum, Tunc ve ip-
si radii; E vero reciulque racio
trabeatur, Cune in compolica ca-
diorum e vlcimarum Cuperticie
rum: V. 8. Sc Sphaera luminis
A, cuius radins AIE VE 3. X (phX-
Fa B, cuius radius sIc vE 2. Patio
Superticierum cst 2. est enim du-
plicaca rarionis diametiorum, ve
Pater ex geometria; ratio radio.
rum est =. igitur compolita erie
. Ioicur eRectus luminis (pHXTA
A, est ad effectum luminis (phXEX
B, VE 270dd8.
DROP. LZZ IY.
Hinc effectus luminis sunt in ra-
tione triplicata diametrorum sphae-
rarum: Cum enim sint in Compo-
Sica rlcimorum superticierum, et
Fadiorum, per prop. 73. d cum lu-
perticies sine in duplicata radio-
rum; cerre compolica ex duplica-
ta, de simpliciradiorum, est corum-
dem eriplicata, ve Parer exrerIIIS
idem exemplum, E ris, adhibe.
PROP. LXZV.
puncto, tota illuminatio procedat.
568
MHtata
DROP. LZXII.