{"book":"adl0946","page":68,"text":"نمی کند پس هرگاه نقطه (و) هم ثابت شود مقوا بی حرکت میشود\nدر صورتی که در حرکت دورانی نقطه (و) دائره رسم می کند که مرکزش\n(ه) و شعاعش (ه) و است آن تغییر محل دورانی بدور نقطه (ه)\nنقطه (و) را از محل خود بمحل (و) آورده است و نیم خط (ه) و مانند\nعقربهٔ ساعت گردش میکند و آن ممکن است در همان جهت\nعقربهٔ ساعت یا بر عکس آن حرکت نماید .\nبنابرین تغییر محل دورانی بدو شئ ذیل کاملاً\nمشخص می شود .\nاولاً بواسطهٔ تعیین جهت دوران .\nثانیاً بواسطهٔ اندازهٔ زاویه (و) ه (و)\nمثلاً می گوئیم قطعه مقوا بقدر ۳۰ درجه بدور نقطه (ه) در جهت\nمخالف عقربه های ساعت حرکت کرده است .\n۸۳ - جهت زاویه - فرض می کنیم زاویهٔ مانند ج ه (و)\nکوچکتر از ۱۸۰ درجه در دست است بر روی یکی از اضلاع\nآن علامت و در روی دیگری علامت میگذاریم (س۷) واضح است","chars":701,"image":"https://storage.googleapis.com/adl-page-images/adl0946/00068.jpg","first_page":1,"last_page":327,"title":"Handasah-ʼi musaṭṭaḥah barā-yi ṣinf-i haftum-i makātib-i rushdīyah, bi-qarār-i prūghram-i Vizārat-i Jalīlah-ʼi Muʻārif-i Afghānistān هندسۀ مسطحه :هندسۀ مسطحه","permalink":"https://afghanpress.org/book/adl0946/68","canvas":"https://afghanpress.org/iiif/adl0946/canvas/68","source":"https://afghanistandl.nyu.edu/books/adl0946/","source_pdf":"https://afghanistandl.nyu.edu/pdf/adl0946_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."}}