Aristotle, Problemata Mechanika, 1831

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            <p n="26">
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              ἐλάττονα· ἄπειροι γὰρ οἱ ἐλάττονες.</s>
              <s id="g0130809">εἰ δὲ καὶ πρὸς ἕτερον
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              ἔχει ῥοπὴν ὁ κύκλος, ὁμοίως δὲ εὐκίνητος, καὶ ἄλλην ἂν
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              ἔχοι ῥοπὴν ὁ κύκλος </s>
              <s id="g0130810">καὶ τὰ ὑπὸ κύκλου κινούμενα, κἂν μὴ
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              τῇ ἁψῖδι ἅπτηται τοῦ ἐπιπέδου, ἀλλ' ἢ παρὰ τὸ ἐπίπεδον,
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              ἢ ὡς αἱ τροχιλέαι· καὶ γὰρ οὕτως ἔχοντα ῥᾷστα κινοῦνται
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              καὶ κινοῦσι τὸ βάρος.</s>
              <s id="g0130811">ἢ οὐ τῷ κατὰ μικρὸν ἅπτεσθαι καὶ
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              προσκρούειν, ἀλλὰ δι' ἄλλην αἰτίαν.</s>
              <s id="g0130812">αὕτη δέ ἐστιν ἡ εἰρημένη
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              πρότερον, ὅτι ἐκ δύο φορῶν γεγένηται ὁ κύκλος, ὥστε
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              μίαν αὐτῶν αἰεὶ ἔχειν ῥοπήν, καὶ οἷον φερόμενον αὐτὸν
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              αἰεὶ κινοῦσιν οἱ κινοῦντες, ὅταν κινῶσι κατὰ τὴν περιφέρειαν
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              ὁπωσοῦν. φερομένην γὰρ αὐτὴν κινοῦσιν· </s>
              <s id="g0130813">τὴν μὲν γὰρ εἰς
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              τὸ πλάγιον αὐτοῦ κίνησιν ὠθεῖ τὸ κινοῦν, τὴν δὲ ἐπὶ τῆς
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              διαμέτρου αὐτὸς κινεῖται.</s>
            </p>
            <p n="27">
              <s id="g0130901prop09">
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              Διὰ τί τὰ διὰ τῶν μειζόνων κύκλων αἰρόμενα καὶ
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              ἑλκόμενα ῥᾷον καὶ θᾶττον κινοῦμεν; οἷον καὶ αἱ τροχιλέαι
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              αἱ μείζους τῶν ἐλαττόνων, καὶ αἱ σκυτάλαι ὁμοίως.</s>
              <s id="g0130902">ἢ
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              διότι ὅσῳ ἂν μείζων ἡ ἐκ τοῦ κέντρου ᾖ, ἐν τῷ ἴσῳ χρόνῳ
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              πλέον κινεῖται χωρίον, </s>
              <s id="g0130903">ὥστε καὶ τοῦ ἴσου βάρους ἐπόντος
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              ποιήσει τὸ αὐτό, ὥσπερ εἴπομεν καὶ τὰ μείζω ζυγὰ τῶν
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              ἐλαττόνων ἀκριβέστερα εἶναι.</s>
              <s id="g0130904">τὸ μὲν γὰρ σπαρτίον ἐστὶ
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              κέντρον, τοῦ δὲ ζυγοῦ αἱ ἐπὶ τάδε τοῦ σπαρτίου αἱ ἐκ τοῦ
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              κέντρου.</s>
            </p>
            <p n="28">
              <s id="g0131001prop10">
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              Διὰ τί ῥᾷον, ὅταν ἄνευ βάρους ᾖ, κινεῖται τὸ ζυγόν,
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              ἢ ἔχον βάρος; </s>
              <s id="g0131002">ὁμοίως δὲ καὶ τροχὸς ἢ ἄλλο τοιοῦτο τὸ
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              βαρύτερον μὲν μεῖζον δὲ τοῦ ἐλάττονος καὶ κουφοτέρου.</s>
              <s id="g0131003">ἢ
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              ὅτι οὐ μόνον εἰς τοὐναντίον τὸ βαρύ, ἀλλὰ καὶ εἰς τὸ πλάγιον
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              δυσκίνητόν ἐστιν.</s>
              <s id="g0131004">ἐναντίον γὰρ τῇ ῥοπῇ κινῆσαι χαλεπῶς,
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              ἐφ' ὃ δὲ ῥέπει, ῥᾳδίως· εἰς δὲ τὸ πλάγιον οὐ ῥέπει.</s>
            </p>
            <p n="29">
              <s id="g0131101prop11">
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              Διὰ τί ἐπὶ τῶν σκυτάλων ῥᾷον τὰ φορτία κομίζεται
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              ἢ ἐπὶ τῶν ἁμαξῶν, ἐχουσῶν τῶν μὲν μεγάλους τροχούς,
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              τῶν δὲ μικρούς; </s>
              <s id="g0131102">ἢ διότι ἐπὶ τῶν σκυτάλων οὐδεμίαν ἔχει
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              πρόσκοψιν, τὸ δὲ ἐπὶ τῶν ἁμαξῶν τὸν ἄξονα, καὶ προσκόπτει
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              αὐτῷ· ἔκ τε γὰρ τῶν ἄνωθεν πιέζει αὐτὸν καὶ ἐκ
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              τῶν πλαγίων.</s>
              <s id="g0131103">τὸ δὲ ἐπὶ τῶν σκυτάλων ἐπὶ δύο τούτων κινεῖται,
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              τῇ τε κάτω χώρᾳ ὑποκειμένῃ καὶ τῷ βάρει τῷ
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              ἐπικειμένῳ· ἐπ' ἀμφοτέρων γὰρ τούτων κυλίεται τῶν τόπων
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              ὁ κύκλος καὶ φερόμενος ὠθεῖται.</s>
            </p>
            <p n="30">
              <s id="g0131201prop12">
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              Διὰ τί πορρωτέρω τὰ βέλη φέρεται ἀπὸ τῆς σφενδόνης
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              ἢ ἀπὸ τῆς χειρός; καίτοι κρατεῖ γε ὁ βάλλων τῇ χειρὶ</s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
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