{"book":"adl0946","page":27,"text":"۲۰\nباشد همینکه دو نقطه از کنار ستاره روی آن واقع شد\nتمام کنار آن روی سطح نیز واقع میشود ولو ستاره\nرا بوصف های مختلفه روی آن قرار دهیم پس ازین رو می\nتوانیم بگوئیم.\nسطح مستوی آن است که هر گاه دو نقطهٔ واقعهٔ\nروی آن را با خط مستقیمی بهم وصل کنیم تمام آن\nخط بروی آن سطح واقع شود.\n۲۶ - لغزش سطح مستوی بر روی خود- هر گاه یک\nقطعه مقوا را که یک طرف آن نوشته باشد برداشته\nروی میزی قرار دهیم بقسمی که طرف سفید آن روی\nسطح میز واقع شود دو سطح داریم که بر روی هم واقع شده\nو در تمام نقاط بر هم منطبق شده اند و هر قدر هم مقوا را\nحرکت دهیم و بر روی میز بلغزانیم این انطباق بر هم نخواهد\nخورد پس مانند علما میگوئیم :\nيك سطح در روی سطح دیگری می تواند بلغزد.","chars":638,"image":"https://storage.googleapis.com/adl-page-images/adl0946/00027.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/adl0946/27","canvas":"https://afghanpress.org/iiif/adl0946/canvas/27","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."}}