The pneumatics of Hero of AlexandriaHero, of Alexandria
History
The pneumatics of Hero of Alexandria
Hero, of Alexandria
Discoveries in science -- History; Inventions -- History; Pneumatics
| The latter reading is clearly inconsistent with the
| argument.
174 - 3 | εἰσχωρεῖ καὶ διὰ τοῦ | εἰσχωρεῖν καὶ διὰ τοῦ Υ
| τρήματος | τρήματος _a b c_.
— - 13 | ὁ Κ, ὁ κενὼν | ὁ Κ ἔνων _a b c_.
177 - 1 | ἀνακεκαμφθέντα ἀγγεῖα | ἀνακεκάμφθω εἰς τὰ ἀγγεῖα
| | _c_. _a b_ have ἀνακεκάμφω.
— - 24 | The printed text is here quite unintelligible.
| We find (beginning of § 24 in translation) these
| words:—ἔστω σμηρισμάτιον ᾧ ἐὰν βουλώμεθα λόγῳ· ἔστω
| δὲ τὸ ὕδωρ τοῦ οἴνου διπλάσιον. The opening sentence
| should be as follows: Ἀγγείου ὄντος κενοῦ καὶ ἑτέρου
| οἶνον ἔχοντος, ὅσον ἐὰν ὕδωρ εἰς τὸ κενὸν ἀγγεῖον
| ἐμβάλωμεν, τοσοῦτον διὰ κρουνοῦ ληψόμεθα κεκραμένον
| ᾧ ἐὰν βουλώμεθα εἶναι λόγῳ· ἔστω δὲ τὸ ὕδωρ τοῦ οἴνου
| διπλάσιον. So _a c_: _b d_ agree with the text.
180 - 11 | Omit τρίτου with _a c_: _b d_ agree with the text
| in retaining the word, which is unintelligible.
192 - 3 | ἐπιληφθέντα _b d_. | ἐπειληθέντα _c_.
| | _a_ has ἐπειληφθέντα.
193 - 26 | ἀποδεδεμένοι | ἀποδεδομένοι _a b c d_.
195 - 7 | ἀποδεδόσθω | ἀποδεδέσθω _a b c d_.
197 - 6 | ἄνω _a b c d_. | κάτω, which is given in
| | the margin of _d_, is
| | necessary to the sense.
200 - 8 | Read ἐναρμοσθεὶς εἰς τὸ σφαίριον φερέτω εἰς τὴν χώνην,
| καὶ ἐμβεβλήσθω εἰς τὸ σφαίριον ὕδωρ. So all the MSS.
| In the text all from φερέτω to σφαίριον inclusive is
| omitted.
— - 14 | After ὑγρὸν add καὶ ἀναπληρώσει τὸν κενωθέντα τόπον.
| So _a b c_.
202 - 20 | The last clause of § 50 (of the translation) is
| unintelligible as it stands in the printed text.
| For στρέφειν εἰς τὴν χώραν _a_ and _c_ give εἰς τὴν
| σφαῖραν. In the translation σφαῖραν is preferred to
| χώραν, and εἰς omitted.
205 - 10 } | Clauses of considerable length are missing in the
206 - 10 } | text from the usual cause. They are supplied in
185 - 11 } | the translation.
212 | The arrangement of the three plans for self-acting
| lamps has been altered in conformity with _a_ and _c_;
| _b_ and _d_, agreeing with the printed text.
216 - 26 | ἐκπίπτοντος | εἰσπίπτοντος _a_.
223 - 7 | ΓΔ (CD) | ΕΖ (EF): this change has
| | been made on conjecture.
— - 16 | Before ὥστε ἢ has been inserted, without support
| from the MSS. The passage is otherwise
| self-contradictory.
Public-domain text, read in full here on John Shaqi.
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