Heron Alexandrinus, Di Herone Alessandrino De gli automati : ouero machine semoventi, libri due, 1589

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            <s xml:id="echoid-s49" xml:space="preserve">
              <pb file="0012" n="12" rhead="DISCORSO."/>
            diſsimi peſi; </s>
            <s xml:id="echoid-s50" xml:space="preserve">& </s>
            <s xml:id="echoid-s51" xml:space="preserve">onde pendano gli effetti potentiſsimi di
              <lb/>
            quelle; </s>
            <s xml:id="echoid-s52" xml:space="preserve">dalle quali vengono offeſe, & </s>
            <s xml:id="echoid-s53" xml:space="preserve">difeſe le mura
              <lb/>
            delle fortezze, e delle Città. </s>
            <s xml:id="echoid-s54" xml:space="preserve">Tutte queſte ſono ſubalter-
              <lb/>
            nate alle Mathematiche, percioche, ſe bene il ſuggetto
              <lb/>
            è fiſico, ſono dimoſtrate per forza di ragioni Mathema-
              <lb/>
            tiche: </s>
            <s xml:id="echoid-s55" xml:space="preserve">la onde Mathematiche ſono, in quanto la dimo-
              <lb/>
            ſtratione; </s>
            <s xml:id="echoid-s56" xml:space="preserve">e naturale, in quanto s’aſpetta al ſuggetto, co-
              <lb/>
            me inſegnò beniſsimo il Filoſofo nelli poſteriori Reſolu-
              <lb/>
            torij, e nelprincipio de’Mechanici. </s>
            <s xml:id="echoid-s57" xml:space="preserve">Noi, laſciate da par
              <unsure/>
            -
              <lb/>
            tel’altreſubalternate, ragioneremo delle Mechaniche, e
              <lb/>
            di queſte non abbraccieremo tutto il genere, ma diſcorrere
              <lb/>
            mo ſolo di quella parte di lui, che ſi diſtende intorno al-
              <lb/>
            le Machine Se mouenti. </s>
            <s xml:id="echoid-s58" xml:space="preserve">I Greci diedero il nome à que-
              <lb/>
            ſte di Automati, Automatopijtici, Autocineti, che tanto
              <lb/>
            ſuona, quanto ſe tu diceſsi ſpontanee, cioè che per ſe
              <lb/>
            ſteſſe operano, & </s>
            <s xml:id="echoid-s59" xml:space="preserve">ſi muouono; </s>
            <s xml:id="echoid-s60" xml:space="preserve">& </s>
            <s xml:id="echoid-s61" xml:space="preserve">di queſta natura ſono
              <lb/>
            quelle di Herone, che noi traduciamo, e quelleanco-
              <lb/>
            ra che, mediante i contrapeſi, ci diuidono il tempo.
              <lb/>
            </s>
            <s xml:id="echoid-s62" xml:space="preserve">Egli è da credere, che queiprimi inuentori di queſti artefi
              <lb/>
            ciſiponeſſero auanti à gli occhi quella naturale, & </s>
            <s xml:id="echoid-s63" xml:space="preserve">inter-
              <lb/>
            na propenſità che hanno i corpigraui di ſcendercal centro
              <lb/>
            daſe ſteſsi, cioè ſenzabiſogno di aiuto eſterno, e di quì
              <lb/>
            s’imaginaſſero di potere, col mezo loro, dar il moto ad
              <lb/>
            alcuna altra coſa, perciò che di quì ſolo dipende tutta la
              <lb/>
            forza di queſti artificij; </s>
            <s xml:id="echoid-s64" xml:space="preserve">ouero affiſſaſſero l’animo, come
              <lb/>
            pare che tenga il Filoſofo nel principio delle ſue Mecha-
              <lb/>
            niche, alla marauiglioſa natura del cerchio. </s>
            <s xml:id="echoid-s65" xml:space="preserve">Nelle hiſto-
              <lb/>
            rie ſacre non mi ſouuiene, che ſi faccia mentione di coſa,
              <lb/>
            mediante laquale poſſa affermarſi, che in quegli antichiſ-
              <lb/>
            ſimi tempi foſſe diſcoperta queſt’arte; </s>
            <s xml:id="echoid-s66" xml:space="preserve">percioche, ſe be-
              <lb/>
            ne ſi legge di quell’antichiſsimo inuentore dell’arte del
              <lb/>
            ſerro, e dell’induſtria grandiſsima di lui, non ſitroua </s>
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