{"book":"adl0568","page":251,"text":"(٤٢)\nاتحاد و اتفاق ، باعث یگانه ترقیات اروپا گردیده ، سائر\nداکتران و انجنیران و کاریگران و صنعت گران و غیره\nاهل حرفه و پیشه از طفیل همین علم مقدس مستفید میباشند\nبنا بران بسبب قلت وقت بعضی از نمونه های مختصر\nو ساده آنرا برای حضار مجلس ظاهر میسازم :\nحکمت در خود شعبه های مختلف چون برق، صوت،\nحرارت، روشنی ، کانشناسی انجنیری ، وغیره وغیره را\nشامل دارد ! بنابران اندکی در باب صوت که یکی از شعبه\nهای معتنای انست بیان می نمایم ، اولا\" بدانیم که صوت\nچیست ؟ صوت که معنی آن آواز است محض از اهتزاز\nیعنی حرکات سریع حلقوم وسینه و دوجسم پیدا میشود\nبرای نقل شدن آواز از یکجا بجای دگر واسطه ضروریست\nوواسطه اهم آن عموماً هو است ، که اگر هوا نباشد\nآواز از یکجا بجای دگر نقل کرده نمیتواند . ومن این\nدعوی را بثبوت مختصری همین زنگی که فی الحال\nبر روی میز موجود است نشان میدهم : زنگ مذکور را\nگرفته بالای همین قرص مخراج الهوا که شما می بینید","chars":818,"image":"https://storage.googleapis.com/adl-page-images/adl0568/00251.jpg","first_page":1,"last_page":597,"title":"Muʻarrif-i maʻārif معرف معارف","permalink":"https://afghanpress.org/book/adl0568/251","canvas":"https://afghanpress.org/iiif/adl0568/canvas/251","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."}}