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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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LTB. V. DE DIAPHANO ET OPACO.
Spicuum, partes homogenex in esle perspicuum, re videre est, cum
denlicare, debene habere licum, (c. in aquas cum in aëce; de vicro du-
cundum lineam rectam.
PROP. Z ZX.
Frinc metalla, licet habeant par-
ces homogeneas continuas, non sunt
ramen perspicua: Rario est, quia
non Cune continux, secundum li-
neam rectam. Ced quali in orbem,
ve Cuo loco ridebimus: idem di-
co de muleis aliis corporibus opa.
cis, v. 8. de ceras ligno, Culphure,
Bicumine, Caxo, ecc.
PROP. ZZ X L
Ttaque perspicuiras consistit in
subiecto capaci luminis, cuius partes
homogenea in densuare, sium ha-
beant in lineis rectis, cum lauic ala
supersicie; Constar ex dictis, cum
enim haec lingula dicar perspicui-
L25 3 PCF PP. 15, 20. 21. 27. 29.
ec cum in lingulis scortum non
nsICaC PeF PP. 9. 10. 21. 12.
13. 14. cerre in lingulis coniun-
atim illam consistere neceste est.
DROP. XX X IY
Hinc perspieuicas dicit in recto
ipsam densirarem, vel raricarem sub-
recti capacis; in obtiguo verd, dicit
eria. Scilicet concinnitarem partium
homocenearum in densicare. situm
rectum cacumdem pariium,  su-
perficiem lauisatam: Patet ex di-
etis: Hlinc si vel vrum ex his de-
Sicabest quoque perspicuicas.
PROP. XXXITI.
FLinc perspienicas non dicit poros
rectos, sed lineas rectas densicacis,
bicarce aliguis, verum hrabeac po-
105, Ced profecto Cuos poros ha-
bec, ve suo loco, ex mulcis expe-
rimencis. ostendemus.
PROD. XX X IV.
Opacitas consistit, vel in desectu
omnium praedictorum, vel Lancum
unius; nempe opacum dicit neccl-
Cario aliquam negacionem, per d.
2. Quia illud opacum el, quod non
permiccie radiorum craiectionem,
Sed non permirtere, aliquid negaL;
isitur opacitas COnCTIEHIEUL, Per
aliquem defectum, vel negatio
nem; igieur per aliquid neca-
ciuum.
PROD. XXXV.
Modicus fumus primum opacus.
cum multo aëre deinde commixtus;
perspicuus cuadit: Racio est, quia
ica Fumi parriculae distrahuneur,
re mulcum aeris liberum relin-
quanc, per quem nullo negorio
Fadis luminis craiiciuneur; licee
enim mulei radii impedianeur, quo-
minus craiiciane; quia camen val
de pauci Cunc, si cum aliis craiectis
COMPATCNEUT; PhylICC parum PEO
nihilo compucantur, cum id sen-
sibile non lic: idem dico de ipto
aerc, cicra vllam Fumi admircio.
nem; quia licee aer purus non sIC,
quia camen aëris copia pravalet ad.
instar puri consideratur.
DROP. XXXVI
Tlinc quaedam rarissima, sunt opa–
ca; quadam draphana: Racio CA,
ve raritatis homosence; Ouod vel quia quaedam rara, ex parcibushe-
ex eo maxime probatur quod sci- terogeneis constane, igitur opaca
licet Corpus carens poris pottc. Lunc, retumusnubes; concrareco,
RF 3. quaedam