Heron <Alexandrinus> - Heronis Alexandrini spiritalium liber

Heron <Alexandrinus>, Heronis Alexandrini spiritalium liber

Table of contents

[11.] V.

[12.] VI.

[13.] De Sphærula conca@a ex ære. VI.

[14.] VII.

[15.] De Prochyta. VIII.

[16.] De Sphæra cancara. IX.

[17.] De Aſſario. X.

[18.] XI.

[19.] XII.

[20.] De concor diæcrateribus. XIII.

[21.] XIV.

[22.] XV.

[23.] XVI.

[24.] XVII.

[25.] XVIII.

[26.] XIX.

[27.] XX.

[28.] XXI

[29.] XXII.

[30.] XXIII.

[31.] XXIV.

[32.] XXV.

[33.] XXVI.

[34.] ALITER. Poteſt autem & aliteridem effici.

[35.] XXVII.

[36.] XXVIII.

[37.] XXIX.

[38.] XXX.

[39.] XXXI.

[40.] XXXII.

7064HERON@S

XLVIII.

Thyrſum in aquam demiſſum edere ſonum vel fiſtulæ,
vel alicujus aviculæ.

Sit thyrſus ABCD fo-

55[Figure 55] ramen habens ad verticem
corymbi D, ſitque co-
rymbus concavus, velut
nux pinea: & caulem in-
terſeptum habeat paululum
ſub os, diaphragmate AE.
Huic autem apponatur ſy-
ringula F ſub os tubi loca-
ta, & ſimul perforata cum
diaphragmate. Quando igi-
tur thyrſum in aquam in-
jicientes deorſum premi-
mus, aër, qui in ipſo eſt,
ab aqua eliſus ſonum efficit.
& ſi quidem ſyringula ſit
ſola, ſyringæ ſonum edet,
ſi vero adſit quantitas aquæ
ſub diaphragmate, erit ſo-
nus cum clangore.

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