9 measurements spanning 22 days, net -13. Dots are measurements; the straight line between them is drawn to join them, not to claim we know the path taken in between — snapshots are recorded only when a count changes, so gaps mean “no change observed”, never “interpolated”. The vertical axis spans 1,206–1,223 and does not start at zero.
Measurement log — every subscribers count we have recorded
Measured (UTC)
Subscribers
Change
28 Aug 2026, 07:46
1,208
-1
25 Aug 2026, 05:33
1,209
-1
22 Aug 2026, 11:48
1,210
-3
19 Aug 2026, 01:34
1,213
-2
15 Aug 2026, 20:26
1,215
-1
12 Aug 2026, 08:07
1,216
-1
9 Aug 2026, 07:52
1,217
-4
6 Aug 2026, 15:03
1,221
no change
6 Aug 2026, 14:53
1,221
first reading
Engagement
20 posts held, back to 30 January 2024 — the reader has not yet reached the start of this channel’s public history, so older posts may sit further back, unread. Read across 1 pageof Telegram’s post history, 20 posts per page.
Nothing published in the last 30 days. ERR and ER are rolling 30-day measures, so there is nothing to compute — we hold 20 posts for this entry, the most recent from 29 July 2026. An engagement rate over an empty window would be a number about nothing.
Reaction mix
136 reactions across 19 posts, in 5 distinct kinds. The most used accounts for 44.9% of them.
Every reaction kind recorded on the sample, most used first
Reaction
Count
Share
Share, drawn
👍
61
44.9%
❤
50
36.8%
👏
19
14.0%
👌
4
2.94%
🤯
2
1.47%
No sentiment is inferred, and none should be read in. This table is ordered by count and by nothing else. Emoji do not carry stable meaning across languages or communities — 🙏 is thanks in one channel and mourning in another — so we publish which ones were pressed and how often, and pass no judgement on what an audience meant by them.
Precision. Telegram publishes reaction counts per emoji and short-forms each one — 4.34K, 1.2M — so any single kind at or above 1,000 reaches us at three significant figures, and only counts below 1,000 are exact. The shares above are ratios of those figures and carry the same error. This is also why the total here can differ slightly from a reaction total printed elsewhere on the page: both are sums of the same rounded parts, taken over samples with different edges.
Coverage. Reactions were read on 19 of the 20 sampled posts in this sample. Summed by Telegram’s own count on each post — not by adding up the per-emoji breakdown above — those same posts carry 136reactions in total: the kind of figure the paragraph above means by “a reaction total printed elsewhere on the page”.
Measured over the 20 most recent posts we hold, published 30 January 2024 to 29 July 2026, using the newest reading held for each. Telegram Stars are excluded: they are a payment, not a reaction, and they have their own section.
🖍طبقهبندی مواد بر اساس χm
با نگاه کردن به مقدار χm میتوانیم بفهمیم ماده در چه دستهای قرار میگیرد:
🟡مواد دیامغناطیس (Diamagnetic):
مقدار χm اینها منفی و بسیار کوچک است
مثلاً
≈−10^−5
رفتار: این مواد با میدان مغناطیسی «لجبازی» میکنند! وقتی میدان H میآید، ماده سعی میکند یک میدان مخالف ایجاد کند تا خودش را از آن دور کند. (مثل آب یا مس).
🟣مواد پارامغناطیس
(Paramagnetic):
مقدار χm در اینها مثبت و کوچک اس…
میدان های مغناطیسی B و H
میدان مغناطیسی *B* :
همون میدان مغناطیسی واقعی و نهایی هست که در همه جا (حتی در خلاء) حضور داره.
اما
وقتی پای "ماده" وسط میآید، داستان کمی پیچیده میشه و میدان *H* وارد بازی میشه.
میدان مغناطیسی *H*:
در واقع میدانی هست که ما بر اساس جریانهای الکتریکی آزاد ایجاد میکنیم تا به ماده دستور بدیم!
وقتی این میدان H به ماده میرسه، ماده شروع میکنه به واکنش نشون دادن و خودش یک میدان کوچک به…
⚠️ منشأ جرم تان در چیست ؟
🖋 اگر شما بخواهید بفهمید منشأ جرمتان چیست، باید اتمهایی را در نظر بگیرید که از آن تشکیل شدهاید. اگر جرم اتمها را جمع کنید، به مقداری مساوی جرمتان دست خواهید یافت.
📘 در کاوش ژرفتر درون اتم، با پروتونها، نوترونها و الکترونها روبهرو خواهید شد.
پروتونها و نوترونها در هسته و دارای جرم تقریباً یکساناند، بنابراین میتوانیم آنها را در یک گروه مشترک به نام نوکلئونها جمع کنیم. برعکس، جر…
✅ حوزه مطالعات فیزیک
🔹 مکانیک کلاسیک (مکانیک نیوتنی):
در اندازه های بزرگ (بیشتر از 9-^10 متر)
سرعت های پایین (سرعتهای بسیار کمتر از سرعت نور)
🔹 مکانیک نسبیتی:
در اندازه های بزرگ (بیشتر از 9-^10 متر)
سرعت های بالا و نزدیک به سرعت نور
🔹 مکانیک کوانتوم:
در اندازه های بسیار کوچک (کمتر از 9-^10 متر)
سرعت های پایین (سرعتهای بسیار کمتر از سرعت نور)
🔹 نظریه میدانهای کوانتومی (QFT):
در اندازه های بسیار کوچک (کمتر از 9-^10…
🔹 راجع به نوبل فیزیک ٢٠٢۵
بریدن یک سیم معمولی در یک مدار الکتریکی، جریان الکتریکی را قطع میکند. اما اگر سیمی با ابعاد نانومتری استفاده شود، احتمال عبور الکترونها از قسمت برشخورده دیگر صفر نیست. گویی تعدادی از الکترونها میتوانند از یک تونل خیالی در فاصلهٔ بین دو نقطهٔ جداشده عبور کنند و یک جریان هرچند خیلی ضعیف برقرار میشود. جالب اینکه با تغییر فاصله جدایی بین این دو نقطه میتوان پهنای تونل کوانتومی و در نتیجه…
برندگان جایزه نوبل فیزیک ۲۰۲۵.
پروفسور جان کلارک، پروفسور میشل دِووره و پروفسور جان مارتینیس.
این جایزه برای کشف تونلزنی کوانتومی ماکروسکوپی و کوانتیزاسیون انرژی در یک مدار الکتریکی به جان کلارک از دانشگاه کالیفرنیا، میشل دووره از دانشگاه یِیل و دانشگاه کالیفرنیا، جان مارتینیس از دانشگاه کالیفرنیا تعلق گرفت.
➖➖➖➖➖➖➖➖➖➖
🚸 @Delta_Physics
✅ لینک دورههای آموزش رایگان
"الکترومغناطیس" (دانشگاهی)
از سایت مکتبخونه
مدرس: دکتر محمود بهمن آبادی
🔹الکترومغناطیس ۱
https://maktabkhooneh.org/course/%D8%A7%D9%84%DA%A9%D8%AA%D8%B1%D9%88%D9%85%D8%BA%D9%86%D8%A7%D8%B7%DB%8C%D8%B3-%D9%A1-mk250/
🔹الکترومغناطیس ۲
https://maktabkhooneh.org/course/%D8%A7%D9%84%DA%A9%D8%AA%D8%B1%D9%88%D9%85%D8%BA%D9%86%D8%A7%D8%B7%DB%8C%D8%B3-%DB%B2-mk91/
➖➖➖➖➖➖➖➖➖➖
🚸 @Delta_Physics
✅ لینک دورههای آموزش رایگان
"کاربرد ریاضی در فیزیک" (دانشگاهی)
از سایت مکتبخونه
🔹ریاضی فیزیک ۱
(مدرس: دکتر حمیدرضا مشفق)
https://maktabkhooneh.org/course/188-%D8%B1%DB%8C%D8%A7%D8%B6%DB%8C-%D9%81%DB%8C%D8%B2%DB%8C%DA%A9-%D9%A1-mk188/
🔹ریاضی فیزیک ۲
(مدرس: دکتر حمیدرضا مشفق)
https://maktabkhooneh.org/course/221-%D8%B1%DB%8C%D8%A7%D8%B6%DB%8C-%D9%81%DB%8C%D8%B2%DB%8C%DA%A9-%DB%B2-mk221/
🔹ریاضی فیزیک ۱
(مدرس: دکتر…
❤5
Showing the 12 most recent of 20 posts we hold for @Delta_Physics. View and reaction counts are the latest single reading for each post, not a live figure, and a recent post is still accumulating both. A view count marked ≈ was rounded by Telegram before we ever saw it — t.me prints views in full below 1,000 and to three significant figures above, so ≈1,200,000 means somewhere between 1,150,000 and 1,249,999. Unmarked counts are exact. Text is reproduced from the public post preview and truncated for length.
Polls
The poll we hold for this entry, as Telegram rendered it when we read the post. A poll’s figures keep moving after that, so each one is dated.
Shares as published. No per-option vote count is published by Telegram, so none is shown.
Percentages only — there are no per-option vote counts here, because Telegram publishes none.The public post preview gives each option’s share and a single voter total, and nothing else. Multiplying one by the other would produce a per-option tally that looks measured and is not: the shares are rounded to whole numbers before we ever see them. We print what was published and leave the column that does not exist empty.
The shares need not add up to 100.Rounding alone puts many polls at 99 or 101. A poll that allows more than one answer per voter runs well past 100 by design, and several here do. The bars are drawn against a fixed 100% track at each option’s own percentage rather than normalised to the total, so a poll that exceeds it shows that it does instead of being quietly rescaled.
Read from the 20 most recent posts we hold, published 30 January 2024 to 29 July 2026. Telegram labels each poll by kind — an anonymous poll, a quiz, a closed set of final results — and that label is reproduced rather than paraphrased.
Handles this channel named that no longer answer
Dead references
1
handles named in this channel’s posts, vacant today
Evidenced gone
0
we ourselves saw one of these resolve, at some point
Never seen alive
1
vacant every time we have ever looked
@Delta_Physics named 1 handle that resolve to nothing today. That is a fact about the reference, not necessarily a fact about the handle’s history — see the two groups below.
Most of these may never have existed as a live channel at all.A handle a channel names can be a typo, an aspirational name nobody registered, or a channel that was already gone before this one ever mentioned it. Unless a row below is marked evidenced, all we know is that it references a handle that is not a live channel today — not that anything “died”. How this is measured.
Never seen alive
References a handle that is not a live channel — we have no record it ever was one.
@atomicphysics named in 2 posts, 8 August 2026 – 8 August 2026
Cite this entry
A live page changes as we take new readings, so a citation should name the measurement it is based on, not just the URL. The line below cites the subscriber count as measured 28 August 2026 — this
entry's latest reading, not the date you are reading this.
“Delta Physics 🖋️” (@Delta_Physics), 1,208 subscribers as measured 28 August 2026. Telegram Register, tgregister.com/channel/Delta_Physics.
Full measurement history, CC BY 4.0. Every reading this register holds for this entry, not just the latest one, as a dated, downloadable record: CSV · JSON. Free to use with attribution to tgregister.com. Each file carries its own generation timestamp, which is the figure to cite for exactly when the data was retrieved.