Heron Alexandrinus, Mechanica, 1900

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              <s id="A18-3|21|15">
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              مُستَقصي اَل۪إِستِواء بِ۪قَدر ثُخن اَل۪لَولَب </s>
              <s id="A18-3|21|16">ثُمَّ نَثقُب في جَوانِب هٰذا اَل۪حَفر اَل۪واسِع ثُقَباً صِغاراً مُتَوالِيَ وَ۪نُرَكِّب فيها أَوتاداً صِغاراً مائِلَة مُستَديرَة وَ۪نُنفِذُها إِلى اَن تَقَع في دَوائِر اَل۪لَولَب </s>
              <s id="A18-3|21|17">ثُمَّ نَأخُذ اَل۪خَشَبَة اَلَّتي نُريد اَن نَحفِر فيها اَل۪لَولَب اَل۪أُنثا فَ۪نَثقُب فيها ثُقباً بِ۪قَدر وَتَد اَل۪لَولَب وَ۪نَصِل بَينَ هٰذِهِ اَل۪خَشَبَة وَ۪اَل۪خَشَبَة اَلَّتي رَكَّبنا فيها اَل۪لَولَب بِ۪قائِمَتَين نَشُدُّهُما شَدّاً مُستَقصي </s>
              <s id="A18-3|21|18">ثُمَّ نُرَكِّب اَل۪وَتَد اَلَّذي فيهِ اَل۪إِسفين في اَل۪حَفر اَلَّذي في اَل۪خَشَبَة اَلَّتي نُريد اَن نَحفِر فيها اَل۪لَولَب اَل۪أُنثا وَ۪نَثقُب في طَرَف اَل۪لَولَب اَل۪أَعلا ثُقَباً نُصَيِّر فيها أَوتاداً فَ۪نُديرُها إِلى اَن تَنفُذ في اَل۪خَشَبَة</s>
              <s id="A18-3|21|19">فَ۪لا نَزال نُديرُها صاعِداً وَ۪نازِلاً وَ۪نَتَعاهِد هٰذا اَل۪إِسفين بِ۪اَل۪ضَرب مَرَّة بَعدَ مَرَّة حَتّى يُحفَر اَل۪لَولَب اَل۪أُنثا اَل۪حَفر اَلَّذي نُريد</s>
              <s id="A18-3|21|20">فَ۪نَكون قَد حَفَرنا اَل۪لَولَب اَل۪أُنثا</s>
              <s id="A18-3|21|21">وَ۪هٰذا اَل۪شَكل وَ۪بِ۪تَمامِهِ تَمَّ اَل۪كِتاب</s>
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