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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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PHZSICA YR AOT. III.
PROD. CLZXV.
Opera ejusdem speculi, fieri po-
test, vt quis, citra impedimentum,
dum lognieur o longinquo, facilé au-
diatur: Sic idem speculum ADO,
ELE LOquens in EI; vox in orbem
dictundicue, igirur ducuntur radii
HIE, TIE, TID, IIC, HIB, ec. qui
omnes retlectuntur in parallelos
FMI, EL, CK, BI, XC. igitur dein-
ceps rniformiter proxiganeur; igi-
cur ad maximam distanciam, si quis
inera cylindrum radiorum reAexo-
rum, exictat, rocem illam, quan-
cumuis Cubmillam, audire poterit:
reerque modus miriticus ett, ad
pionouendam rocem, de procul
inierendam; sic oblessos aliquis c
longinquo alloqui posset; vel in
carcere detentos; omirro innume-
eos alios huius arciticii vlus quos
Facile quiuis excogicare porerie, de
quibus in arce acoustica, in qua
cerre quod caroperica, vel dioperi-
ca nunquam obtinere poruie; li-
neam intinitam per le habeus;
hoc es radios parallelos in infini-
cum productos; dixi, quod cato-
Prrica vel dioperica nunquam obci-
nece poruit, nec enim lumen, cum
sic qualicas, in intnicum diffundi
porest; dixi per le, nam per acci-
dens accidit, ve aeris expulli parri-
culae, vel ab aliis moribus, qui
tune in aëre, dissipentur, vel ab
atomis distrahaneur.
PROD. CLXXVI.
Opera eiusdem speculi parabolici,
rox iterum proeul collici potest, ci-
era impedimentum, in uno centro:
Sic enim speculum pExeFaTUM ADC;
Sic aliud NOP; EE FocuS primi LI;
incidune loni radii inprimum (pe-
CulU FTE, FTF, FIC, HIB, rederi-
quC FR, ES, DO, CT, BY in le-
cundum speculum cadune, vnde
iterum reffectuntur in Focum Z.
quod erar praeltandum.
DROD. CLXXVII.
Tlinc opera semini speculi para-
bolici, sonus potest infinities reflecti.
citra impedimentum: Sic cnim (pe-
culum AF, et OL, axe communi eig. 36.
CI, itemque FOcoOF; PonuS edaEUE
ex cenErOF, cadant radii FF, FD,
FB, FA; haud dubie reflectuntur
Paralleli AXi CI, V. 8. F A teAte-
ctirur in AC, cum in GFF, eum
in EL, cum in L FA, atque ica de-
inceps vides intinitas reftexiones,
radii F A; idem dico de FB, FD,
FE, _C. idem de FL, FK, FFI, FC;
Flinc rumor erie perperuus in l,
XC.
PRGP. CLXZVTII.
Opera cemini speculi parabolicis
duo se se procul alloqui, citra impe-
dimentum possunt, etiam submissa
voce, licet sibi innicem terea ver-
tant: Sinc enim duo specula ADC,
NOP; focus primi sic HI; secundi F18. 35
reio X; sic alrer colloquentium in
EI, converlus ad D; alter in Z, COn-
vertus ad O, vides quomodo sibi
innicem terga verrane; iam VECI-
que lubmissa roce LOquatur, vOX
loquentis in II colligetur in X;
igitur qui est in Z, audiet; _ rOX
loquentis in X, colligerur in H,
igitur ab eo qui est in Ll. audietur,
quod erat propolirum.
secundis R. Si quis loquarus ex HI, ii elliprisi, citrae impedimencum,
quocum
PROF. OLALLL
Idem praestari potest opera specu–