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

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          <pb o="22" file="0047" n="47" rhead="LIBRO PRIMO."/>
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            <s xml:id="echoid-s525" xml:space="preserve">Il moto poi in circolo ſi fa in queſto modo. </s>
            <s xml:id="echoid-s526" xml:space="preserve">Sia il circo-
              <lb/>
            lo, per ilquale ha da caminare la caſſetta, ſegnat o con le
              <lb/>
            lettere a
              <unsure/>
            , b, c, il centro delquale ſia d; </s>
            <s xml:id="echoid-s527" xml:space="preserve">& </s>
            <s xml:id="echoid-s528" xml:space="preserve">ſitiri v na linca
              <lb/>
            retta, a, d, & </s>
            <s xml:id="echoid-s529" xml:space="preserve">à queſta ad angoli retti per il punto a, la e,
              <lb/>
            a, f, e la e, f, ſia il diametro d vna delletre ruote di che grã-
              <lb/>
            dezza cì pare, il mezo della detta linea ſia il punto a, ſi
              <lb/>
            cõgiũgano le due linee e, d, f, d, & </s>
            <s xml:id="echoid-s530" xml:space="preserve">eguale al fuſo delle ruo-
              <lb/>
            t
              <unsure/>
            e ſia la a, h, & </s>
            <s xml:id="echoid-s531" xml:space="preserve">alla e, f, ſitiri parallela la g, h, K, la caſſetta ſia
              <lb/>
            la m, l, n, o, laquale habbia il lato n, o, parallelo alla linea
              <lb/>
            a, d; </s>
            <s xml:id="echoid-s532" xml:space="preserve">ſitiri vn’altra d, p; </s>
            <s xml:id="echoid-s533" xml:space="preserve">& </s>
            <s xml:id="echoid-s534" xml:space="preserve">à queſta con angoli retta la q, r,
              <lb/>
              <figure xlink:label="fig-0047-01" xlink:href="fig-0047-01a" number="14">
                <image file="0047-01" xlink:href="http://echo.mpiwg-berlin.mpg.de/zogilib?fn=/permanent/library/xxxxxxxx/figures/0047-01"/>
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