# All Questions

3,116 questions
Filter by
Sorted by
Tagged with
63 views

### Request to reopen an old question

I am following the advice given in community wiki answer and making a request to the Physic.SE community to reopen this question. The reason I believe the question should be reopened is because it is ...
44 views

### Conditions for on-site preservation of an answer

I answered a question made by someone who has not been seen on the site since April 29, 2016. It's my impression that "accepted" answers (answers accepted by the participant who had ...
57 views

### Difference in "edited posts" in editor stats and user profile

I noticed that there is an inconsistency in the number of edited posts between the "editor stats" (which is the dialog that you can see in post revisions) and the user profile. For example, ...
87 views

### I know the answer but the site prevents me from answering because I have no reputation. What am I to do?

Why does the bathroom become hot after a bath? I know the answer but the site prevents me from answering because I have no reputation. What am I to do?
47 views

### Where are the new questions?

I apologize if I am delusional and imagined this, but I believe that in a not-so-distant past it was possible to display questions sorted by date so as to get the most recent ones on top of the list. ...
345 views

### How to promote “hidden gems”

Upvote mechanism does not always work on this site. I often see great answers with zero votes that are unaccepted. This is what tends happens: Spend significant amount of time adding an answer In ...
80 views

### Why aren't "duplicate" questions allowed?

It implies that some random answer from the past is the definitive answer. And we all know that questions can be answered many different ways. And the duplicate question usually isn't an exact ...
46 views

### Need help finding old deleted question

I wrote a question, and later provided my own answer. I spent a decent amount of time writing up that answer and I would like to have it for my notes, but it seems like it was deleted at some point. ...
103 views

### Why was my question from 4 years ago recently deleted?

I think it's a reasonable question which can be answered. Why was it deleted?
381 views

### The $F=ma$ competition was February 18th, 2021

The $F=ma$ competition is the largest physics competition in the United States, and took place online the afternoon after this Meta question first appeared. It is a multiple choice exam with tricky ...
82 views

### Specific tag to add for my questions

With this question I would like to know what specific tag I can include in my questions on Physics.SE since most of them are about clarifications or curiosities or doubts that I encounter for my ...
221 views

Yesterday the question How do non-mechanical solid-state optical switches work? was closed as off-topic. I don't quite understand why, as questions about physics lab equipment are considered on-topic. ...
331 views

### What is the mechanism for questions to go viral?

I have noticed that while most questions get a few views or a few hundred, some rack up, over time, hundreds of thousands. I understand how this sort of thing happens on social media, where "...
164 views

### Are some questions closed "too fast", and is it a problem?

I bring as an example this question, that has been closed after ~12 hours: What exactly are electrons if they exist in orbitals without real boundaries? The OP seems to be someone that does not use ...
179 views

### Would the braket extension in MathJax v3 be appropriate and useful for this site?

Since our math editor is currently on the news, here's one aspect worth considering. One thing that's been pointed out on the Meta.MathOverflow threads (here and here) is that v3 of MathJax has been ...
85 views

See: Find the Thevenin's Voltage The question asker seems a little forward, but there is a deeper question he asks if you read his entire submission, an answer to which would be very typical of SE....
83 views

### My question is "engineering" but

My question: What is the ideal gap between two panes of glass for insulation? According to this: Are engineering questions appropriate for this site? When constructing a product for use in the world, ...
619 views

### The proposed changes to the text editor would break this site

You have probably seen already a link, on the Featured on Meta sidebar, to an announcement of an upcoming upgrade to the text editor on Stack Exchange, Opt-in alpha test for a new Stacks editor. As a ...
292 views

### Does 'Semiconductor Physics' have a home in Physics SE?

I have seen a number of questions on PN-Junctions, Avalanche Breakdown, Biasing and MOS...etc, that have gone largely untouched; which is understandable, do these types of questions belong here or ...
40 views

### Should the on-topic list use the term "Design of experiments" instead of "Experimental design"?

The list of topics for this site on https://physics.stackexchange.com/help/on-topic includes this entry: Experimental designs and results Example: What is needed to claim the discovery of the Higgs ...
73 views

### Why was my resource recommendation question closed for needing more focus?

Books on general properties of matter and fluids. Can anyone please tell why this was closed and down voted? The topic comes under properties of bulk matter, which ...
118 views

### What is the meaning of “bc” in physics stack exchange?

That’s all. This might sound stupid, but that’s it. I got a comment on one of my questions. It read: Is your problem with the result or the Mathematical formalism? Bc you can easily show that the ...
217 views

### Are Fermi problems allowed on physics.stackexchange? [duplicate]

I am new to physics.stackexchange.com, but I not new to Stack Exchange per se. I asked a question which I consider a Fermi problem: In physics or engineering education, a Fermi problem [...] is an ...
72 views

### What constitutes a 'near complete' solution?

My answer (posted below) was deleted from the following question: Calculating mass of unknown object using center of mass. The deleter's comment read, "I'm deleting this in accordance with our ...
126 views

### Please Consider Re-opening This Question

My question at Evidence that Time is a Natural Phenomenon? was closed as a duplicate of What is time, does it flow, and if so what defines its direction? I read the related question and I don't see ...
224 views

### 2020: a year in moderation

As we say goodbye to the old year and welcome the new one, we have a tradition of sharing moderation stats for the past 12 months. As most of you here are aware, sites on the Stack Exchange network ...
428 views

### Improvement of a poor question by non-authors

There are already many Q&A related to the improvement of a question by the original author. It is quite obvious and well documented how to proceed to improve the form of a question. However, I did ...
107 views

### Questions posted on both physics.SE and math.SE [duplicate]

If I have a question about something like group-theory, and I would like both a physicist's and a mathematician's perspective on it, can I just post two identical questions on the two sites? Is it ...
95 views

### Is it possible to know why a question vanished from my "recent inbox messages"?

I have been for several days discussing a question with the asker using comments. Yesterday a message appeared asking me if I wanted to move the discussion to a chat. I asked the question asker if he ...
89 views

### A better system for close voting

In my close vote queue, I sometimes get questions on high-level quantum mechanics or general relativity that I don't know enough to judge. This is annoying to me personally but on a larger scale, it ...
130 views

### Why is the 'Physics' Stack Exchange site closing some interesting questions?

I came to the main site for searching an interesting question about a possible universe inside atoms. Here is a list of questions: Universe inside atom Does our Universe reside in the smallest ...
126 views

### Is this user a spammer?

A user [link removed] just posted an answer to a question I had bountied. The answer itself is garbled, and it's unclear whether it's a legitimate answer attempt or an attempt at farming reputation ...
139 views

### Curiosity about 'total reputation' and 'reputation change' table

This is a mere curiosity, but I looked at the reputation tables and saw the following: Are these mere coincidences? E.g. the total number of users with 5,000+ reputation is exactly the same as the ...
40 views

### Effects of check-marking the Community Wiki box [duplicate]

I've done some additions to a PSE question Is the Universe Past-Eternal? whose own author doesn't seem to be very active on the site recently, and hasn't accepted any answer (-I believe mine remains ...
114 views

### We can see downvotes on answers by seeing the reputation of a user

If I downvote an answer there is a -1 reputation change. Even though, downvotes and upvotes are supposed to be anonymous. There is a slight chance that user might visit my profile and can see my -1 ...
351 views

### Deleting answers due to the Homework policy is not beneficial

The homework policy doesn't seems like a counter-productive policy on Stack Exchange. I understand Stack Exchange policing their questions, but policing removing answers to "homework like ...
483 views

### Is the Stack Exchange reputation point system discouraging?

How should I feel about the Stack Exchange reputation point system? I am new to the Physics Stack Exchange site as a contributor. I try to answer questions that I am sure that I know the answer of. I ...
162 views

### What should I do when a question is made duplicate to a not really relevant other question?

This question How can photons destructively interfere?, definitely and clearly a question about photons, was made duplicate to a general waves question: What happens to the energy when waves perfectly ...
75 views

### Can we set the record straight on this optics question?

This popular question Why can't the human eye focus to make blurry photos/video clear? has unfortunately been overrun by incorrect answers and comments. I'm seeking to draw attention to this in the ...
114 views

### Imagination-based questions [closed]

Why doesn’t Physics SE accept imagination-based theory, man? It just makes a person feel so bad when he asked an imagination-based question and it just get closed by higher members (like Qmechanic). ...
139 views

### Why would someone think this question NOT mainstream physics?

I've asked a question that's mostly about optics with a little touch of thermodynamics to it: Can you use an invisibility shield to insulate from infrared radiation? But I'm getting 2 close votes to ...
86 views

### What should be done with questions tagged [resource-recommendations] that are not actually asking for recommendations?

210 views

This accepted answer I wrote a few hours ago was changed to a community wiki: Dynamics and radiation part of Jackson's book - reading advice I realize the original question was not a particularly ...
331 views

### What happened with the experiment to lower the vote-to-close threshold?

In December 2019, the moderator team posted the question Should we test lowering the vote to close and reopen threshold?, which was positively received, and there was a clear agreement and intention ...
39 views

### Is there a way to find where I have made some comments earlier or recently?

It would be better if someone can tell me a way through which I can find the post by myself rather than being completely dependent on moderators or the Stack Exchange team. Any suggestions?
96 views

### Tags for calibrating answers to the level of question

A problem I find with the site is that often answerers don't know how to calibrate an answer to the level of the questioner. This was both good and bad for me personally as I'd get insight into topics ...
43 views

For example, question Q care about problem A and need some material about problem A. Can I answer the question by solving problem A directly?
78 views

### Why are coloured parts of questions removed?

Out of curiosity, after I learnt the use of MathJax if I thought it necessary (obviously may be not for others), I used the colour code to mark any point of my question, but some users suggest edits ...