{"book":"adl0266","page":21,"text":"( ۱۸ )\nاول نوک عصا چوبش از نظر پنهان میشد چونکه\nخود شما میدانید که سطح هر جسم كروى يك انحنا\nیعنی خمی دارد مثلاً اگر بر سطح يك جسم كروى يك\nخط مستقیم بکشید آنخط بهمه حال با وجود راستی و برابری\nباز هم خمی و کجی داشته میباشد . ازینست که چون\nکشتی در حدود آن خمی سطح دریا را برآید اول\nنوکهای دکل کشتی پدیدار میشود و خود بدنه\nکشتی هنوز در عقب آن خمی میباشد . و چون ازان\nخمی بیرون برآید دیگر چیز های آن معلوم میشود\nو چون خوب نزديك شود همه کشتی ظاهر\nمیگردد . در آدم ره رودشت پیمانیز عيناً همین حال\nموجود است . چنانچه اگر بر سر این تپه گک بالا\nشویم و تو در انجا توقف نموده من بفرو آمدن آغاز\nنهم اول پایهای من ، و بعد ازان جسد من و بعد ازان سر من\nاز چشمت نهان میگردد . پس از ین معلوم میشود که\nهر جسمی که اولا حصهٔ زیرین آن از چشم نهان گردد،\nحرکت آن جسم بر ( خط منحنی ) یعنی خط کجی خم","chars":772,"image":"https://storage.googleapis.com/adl-page-images/adl0266/00021.jpg","first_page":1,"last_page":107,"title":"Muʻallim-i ḥikmat as̲ar-i Maḥmūd Ṭarzī معلم حکمت","permalink":"https://afghanpress.org/book/adl0266/21","canvas":"https://afghanpress.org/iiif/adl0266/canvas/21","source":"https://afghanistandl.nyu.edu/books/adl0266/","source_pdf":"https://afghanistandl.nyu.edu/pdf/adl0266_download.pdf","rights":{"image":{"statement":"Public domain. NYU states: \"All works presented on this website are, unless otherwise indicated, in the public domain. The images available on this website may be freely reproduced, distributed and transmitted by anyone for any purpose, commercial or non-commercial.\"","uri":"http://rightsstatements.org/vocab/NoC-US/1.0/","holder":"New York University Libraries","source":"https://afghanistandl.nyu.edu/about.html","delivery":"Images are served from a copy mirrored by this project, not from NYU's servers, under the reproduction terms above.","endorsement":"This is an independent project. It is not affiliated with, endorsed by, or reviewed by New York University."},"text":{"statement":"Machine-generated transcription, dedicated to the public domain under CC0 1.0. No warranty of accuracy: see the provenance block on every page.","uri":"https://creativecommons.org/publicdomain/zero/1.0/","holder":"Steps Ventures"}},"provenance":{"text_produced_by":"gemini-3.1-pro-preview","thinking_level":"low","read_completed":"2026-08-09","per_page_confidence":null,"per_page_confidence_note":"Not recorded during the corpus run. No calibrated per-page score exists, and none is estimated here.","human_reviewed":false,"accuracy_context":"Roughly two thirds of characters agree with a modern printed edition of the same text. Much of the disagreement is editorial, not misreading. Treat the transcription as a finding aid and read the page image before quoting.","primary_source":"The page image. The text is an index into it."}}