{"book":"adl0568","page":22,"text":"( ۱۷ )\nو مقصد خود كامیاب آمدند . بنده میخواهم که نبذه از\nآن معلومات را عرصه قارئین دانش قرین خود میدارم :\n( ۱ ) بعد افتاب از کره ارض :—\nبعد افتاب از زمین ، بقدری است که هر گاه گلوله\nتوپی که در هر ثانیه چهار صد میتر ( يك ميتر = يك كز\nوسه انچ ) قطع مسافت كند بيندازيم ؛ دوازده سال طول\nمیکشد تا به افتاب برسد .\nاگر قطار آهنی که در هر ساعت سی میل حرکت\nوشب و روز در رفتار باشد ، در عرصه ( ۳۳۸ ) سه صدو\nسی و هشت سال از زمین به آفتاب خواهد رسید .\n( ۲ ) نور افتاب وسرعت رفتار آن :—\nنور افتاب ( ۸۰۰۰۰۰ ) هشتصد هزار برابر نور\nماه چهارده است . نور افتاب در هشت دقیقه وسیزده\nثانیه پس از طلوع به زمین میرسد؛ و سریعتر از هر چیزیست\nکه بخيال بگنجد ، یعنی در هر ثانیه سیصد هزار کیلومتر\n( کيلوميتر = هزار میتر ) حرکت میکند .\n( ۳ ) محيط افتاب :—","chars":726,"image":"https://storage.googleapis.com/adl-page-images/adl0568/00022.jpg","first_page":1,"last_page":597,"title":"Muʻarrif-i maʻārif معرف معارف","permalink":"https://afghanpress.org/book/adl0568/22","canvas":"https://afghanpress.org/iiif/adl0568/canvas/22","source":"https://afghanistandl.nyu.edu/books/adl0568/","source_pdf":"https://afghanistandl.nyu.edu/pdf/adl0568_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."}}