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Channel
Algorithms. Physics. Mathematics. Machine Learning.
@phys_math_dev
On this record: Topic · Growth · Engagement · Reactions · Posts · Citations · Cite this entry
407subscribers
-2 since we began measuring on 7 August 2026
Risers and fallers across the register · movement among entries of Under 1,000.
Register entry
| Telegram ID | -1002982516198 |
|---|---|
| Type | Channel |
| Username | @phys_math_dev |
| Created | Between 1 August 2025 and 31 October 2025 — estimated from Telegram’s id allocation, not measured. How this range is calculated. |
| First recorded | 7 August 2026 |
| Last confirmed live | 26 September 2026 |
| Measurements held | 7 |
| Confirmed unchanged | 1 time, most recently 26 September 2026 |
| On Telegram | t.me/phys_math_dev |
Topic
Education — a classification, not a measurement. An on-box language model (Qwen3.6-35B-A3B-FP8, prompt version 1) read this channel’s own recent posts on 22 September 2026 and assigned it the closest of 31 fixed categories, at 72% confidence. This is a model’s judgement about what the channel is likely to be about, not a fact this register measured the way a subscriber count or a view count is measured — it can be revised on a later pass, and it carries no weight anywhere else on this page. How this classification works, and why it has no browse page of its own yet.
Growth
| Measured (UTC) | Subscribers | Change |
|---|---|---|
| 26 Sept 2026, 09:17 | 407 | +5 |
| 14 Sept 2026, 06:18 | 402 | -2 |
| 6 Sept 2026, 07:39 | 404 | -3 |
| 28 Aug 2026, 14:24 | 407 | +1 |
| 22 Aug 2026, 06:08 | 406 | -3 |
| 7 Aug 2026, 05:46 | 409 | no change |
| 7 Aug 2026, 05:33 | 409 | first reading |
Engagement
18 posts held, back to 30 June 2026 — 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 page of 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 18 posts for this entry, the most recent from 6 August 2026. An engagement rate over an empty window would be a number about nothing.
Reaction mix
50 reactions across 12 posts, in 7 distinct kinds. The most used accounts for 44.0% of them.
| Reaction | Count | Share | Share, drawn |
|---|---|---|---|
| 👍 | 22 | 44.0% | |
| ❤ | 11 | 22.0% | |
| 🔥 | 7 | 14.0% | |
| 🤯 | 5 | 10.0% | |
| 🤔 | 3 | 6.00% | |
| ❤🔥 | 1 | 2.00% | |
| 🌚 | 1 | 2.00% |
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 12 of the 18 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 50 reactions in total: the kind of figure the paragraph above means by “a reaction total printed elsewhere on the page”.
Measured over the 18 most recent posts we hold, published 30 June 2026 to 6 August 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.
Recent posts
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👍1
ICFPC 2026. Lightning round. This year, the contest authors revived an idea from one of the previous contests: they came up with a special 2D graph-based programming language and created a kind of LeetCode for it. The contest lasts three days, with a lightning leaderboard at the end of the first one. As you can see, our team made it onto the first page. Of course, I'm doing it with agents, but who isn't? The funni…
ICFPC 2026 Sorry for jumping from topic to topic. One day I should collect all plots I started and finalize them somehow. But. It's the event I have been waiting for the whole year. It's ICFPC 2026. I have been taking part in it since 2008. It is not about a prize or anything. It's about learning something new and communicating with friends. Because of ICFPC I know about orbital motion and Sundman transformation. …
🔥1
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❤7🤔2
Hopping hoop dynamics In the series about stochastic AUROC, I already stated that the bleeding edge of science is not as distant as one might imagine. Let's again check that a bunch of expressions one can write down without breaking a sweat, can be the subject of a contemporary publication. The article I used as the title picture for this post was published in the May 2026 issue of the American Journal of Physics 9…
👍2
The jumping wheel About ten years ago, my friend told me a story. At MIPT, a professor of theoretical mechanics promised to give a free "excellent" mark for his course to anyone who solved a problem and defended the solution. The problem is seemingly simple. There is a wheel of mass M with a small but heavy point mass m at the top of it. You are to find the ratio m/M at which the wheel jumps for the first time. I …
👍4
Vibe trolling I have already started talking about Trolls Farm. There are two camps on a symmetric map, and your task is to collect more resources than your opponent. As always in strategy games, you have to balance strategy and tactics. You can plant a lot of trees, collect a lot of fruit, and train a super power troll. But by the time you do that the game may already be ending, and your mighty troll will have no t…
🔥5
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🤯5🌚1
Please leave a positive reaction if you want to hear the behind-the-scenes story of how I beat Boss 5 in the Troll Farm challenge.
👍9❤1❤🔥1
The troll farm. My colleagues reminded me about a beautiful platform. It is a nice way to study programming languages and algorithms. Unlike leetcode, where the feedback is basically "your solution didn't pass test 573", in Codingame you can actually see how your program controls some characters, trolls this time. The idea of the spring contest is simple. There are resources on the map: trees, water, iron, and so o…
👍1🔥1
Showing the 12 most recent of 18 posts we hold for @phys_math_dev. 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.
Mentions
Named by 1 registered channel — every channel on the register whose own posts have named this one, by its current username or any other username it currently holds, merged from two separately captured readings of the same fact so a namer caught by only one of them is not missed and a namer both caught is not counted twice. A username this channel has since dropped is not matched — that handle may belong to someone else now, and crediting today’s namer to yesterday’s owner would misattribute it.
Named by
Channels on the register whose posts name this channel's handle.
A mention is a weaker signal than a forward and is counted separately for that reason — naming a channel is not republishing it, and a handle in a post body is easy to place deliberately. The post counts beside each row below are distinct posts in which the handle appeared, from posts we have read on both sides — the “Named by N registered channels” figure above is a different count, of distinct NAMING CHANNELS rather than posts, and is not the sum of the rows under it.
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 26 September 2026 — this entry's latest reading, not the date you are reading this.
“Algorithms. Physics. Mathematics. Machine Learning.” (@phys_math_dev), 407 subscribers as measured 26 September 2026. Telegram Register, tgregister.com/channel/phys_math_dev.
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.