Clavius, Christoph, In Sphaeram Ioannis de Sacro Bosco commentarius

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[61.] DE ORDINE SPÆRARVM CÆLESTIVM.
[62.] COELVM MOVERI AB ORTV IN OCCASVM.
[63.] COMMENTARIVS.
[64.] COMMENTARIVS.
[65.] COELVM ESSE FIGVRÆ SPHÆRICÆ.
[66.] COMMENT ARIVS,
[67.] COMMENTARIVS.
[68.] DE FIGVRIS ISOPERIMETRIS. DEFINITIONES. I.
[70.] III.
[71.] IIII.
[73.] THEOR. 1. PROPOS. 1.
[74.] THEOR. 2. PROPOS. 2.
[75.] THEOR. 3. PROPOS. 3.
[76.] THEOR. 4. PROPOS. 4.
[77.] THEOR. 5. PROPOS. 5.
[78.] THEOR. 6. PROPOS. 6.
[79.] THEOR. 1. PROPOS. 7.
[80.] SCHOLIVM.
[81.] THEOR. 7. PROPOS. 8.
[82.] THEOR. 8. PROPOS. 9.
[83.] PROBL. 2. PROPOS. 10.
[84.] THEOR. 9. PROPOS. 11.
[85.] THEOR. 10. PROPOS. 52
[86.] SCHOLIVM.
[87.] THEOR. 11. PROPOS. 13.
[88.] COROLLARIVM.
[89.] THEOR. 12. PROPOS. 14.
[90.] THEOR. 13. PROPOS. 15.
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257220Comment. in I. Cap. Sphæræ etiamſi arenulæ tam exiguæ eſſent, vt 10000. efficerent ſphærulam grano, pa
paueris ęqualem.
Liqvido ergo ex dictis conſtat, nos certò deprehendere poſſe, quot
arenulæ totum mundum replere poſſent, ſi nobis eſſet exploratum, quot are-
nulæ grano papaueris fint æquales, &
quot grana papaueris digitum conſti-
tuant, ac denique quot milliaria, quorum ſingula 80000.
digitos continent, in
diametro concaui Firmamenti comprehendatur.
Sed quoniam hæc adhuc
ignota ſunt, atque incerta, aſſumpſimus (Archimedẽ in hoc ſecuti) diametrum
mundi multo maiorem, quàm re ipſa ſit ſecundum peritos Aſtronomos;
Item poſuimus plures arenulas æquales eſſe grano papaueris, quàm
re ipſa ſint;
& plura grana papaueris digitũ conſtituere, quàm
vere conſtituant:
ut nimirum hac ratione maior numerus
arenularum conſurgeret:
qui utique longe maior
erit, ut diximus, numero arenæ, quæ uere in-
tra concauum Firmamenti poteſt com-
prehendi.
Quod quidem
multis incredibi-
le videtur.
PRIMI CAPITIS FINIS.

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