# All Questions

2,566 questions
25 views

### Where am I supposed ask questions regarding Physics education/research?

I asked this as a soft question How to explore Physics research as an undergraduate, keeping in mind the ever increasing weightage on publications? I have explictly asked if this is the right place ...
56 views

### Why can't we downvote comments? [duplicate]

Comments by other users cannot be deleted or downvoted by users such as me. Why don't we enable the feature of downvoting comments and many downvotes causing deletion? Please don't get me wrong. But I ...
245 views

### 2019 Moderator Election Q&A - Question Collection

Physics is scheduled for an election next week, April 22nd 2019. In connection with that, we will be holding a Q&A with the candidates. This will be an opportunity for members of the community to ...
58 views

### How to respond to an answer to a clearly duplicate question?

I have often noticed that even when a question is an obvious duplicate and it has been pointed out in the comments, some of us are posting answers to such questions without clarifying as to why they ...
91 views

### Question was closed as homework

I am wondering why this question was closed as homework.As OP said ,It was from an exam ,but I think it was not a homework type question.
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### What is the meaing of 'greyed out' questions?

'greyed out' or faded questions seemed to appear for me about a month ago. I do not remember seeing them before that. What is the meaning of this? Who does it? How is it done? What is its purpose? ...
102 views

Moderator Rob deleted my answer for the question Pendulum in a lift with the comment Hi, welcome to Physics! We aren't a homework help site, so I have temporarily deleted this complete answer to a ...
240 views

I was about to answer this question: Testing the second type of equations of Lagrangian Mechanics when I refreshed the page and saw it was put on hold as off-topic. Now, it might be a duplicate (...
189 views

Once the question has been closed, one can cast re-open votes and a question requires exactly as many re-open votes as close votes in order for it to be re-opened. Given the homogeneity of time, I ...
343 views

### Should a rude comment be deleted if the addressed user doesn't mind?

On the linked post, a comment was made addressing me with words that might be considered mildly rude by some. I had absolutely no issues with the comment (and thus, I didn't flag it). And yet, the ...
335 views

### Cascade of mostly trivial edits by a user

Example today . Many times I cannot see any real changes between the left and right side, but it might be my browser or his/her browser. Are people increasing their reputation by corrections? It ...
80 views

### A poor ban for not asking questions! [duplicate]

I think my questions were not so rubbish on physics stack exchange that I am banned to ask questions. Please see my account for inspection. I urgently need 3 questions that I have to convey here so ...
96 views

### Help needed. format turned colored and with bubbles when I hit a question

A nonsense format comes up when I hit on the list of Physics a question to look at it. Colors and bubbles and distracting fuss. Help please. It happened after I rejected and edit by xray0, but it ...
65 views

### Negative rep score when neither question nor my answer were downvoted

My answer to this question- Wood: A Naturally Occurring Composite Material? was green-checked as "accepted", although neither the question nor my answer were upvoted (both show zero). However, my ...
70 views

### What to do to my duplicate marked question?

I recently asked a question Can't we make big magnetic plate to levitate using gravity?. Maybe late, but I edited the question to prove it unique, but nothing seems to happen. Should I ask the ...
80 views

### Can anyone advice the real name of “Qmechanic”?

I am a big fan of the rigidity, depth and straightforwardness of "Qmechanic" answers, I wonder if he\she has a book\notes in some fields of physics, I believe we can learn much faster by using them. ...
123 views

### Where should I post a question about logic circuit minimisation?

I have a question about some logic circuits (I have the Boolean functions and truth tables) that I would like to minimise. Where would I post a question about this? I was thinking Physics firstly but ...
77 views

### Reputation of the user increased without activity

I noticed a user profile who has joined today, has not got any upvote for questions nor has answered any question on physics.SE, how did his reputation surge to 101 within such a short period of time?
105 views

### An Issue with Detecting Identical Titles

I was editing a question titled "newton's law of restitution" and I edited the title to "Newton's law of restitution" (There were latex issues in the body of the question and I was not editing the ...
224 views

### Are partial answers to homework questions allowed?

I gave a partial answer to a homework questions here (now deleted; screenshots: question, answer) and was firmly told in comments that even partial answers to homework questions are not allowed. Is ...
57 views

### Can one move a chat back to comments?

How can I move a chat back to comments? In complying to the automated admonition to move comments to chat, I discovered that MathJax is was no longer rendered. This is unacceptable in this ...
45 views

While it's not something usual, I've noticed that sometimes people edit my question or answer with a more complex notation or incorrect information/formulas. While I don't think this is done with ...
81 views

### Suggesting a tag: “crackpot_theory” (you get the idea)

Re Is there any reliable place where i can put my theory of universe (it explained/predicted the behavior of almost everything i came across) and my comment to it. Lots of similar things have been ...
82 views

### Is this a bad question?

One of my question that I asked a week ago is not yet answered. I just wanted to ask if there was something wrong in that question. Here’s the link Can flames be Frozen?
78 views

### My question was put on hold

My question was put on hold because "homework-like". I would like some clarification on this please. I am not asking anybody to do a conversion of me, I am asking whether the conversion mol/mm3 <->...
126 views

### Are industry related questions acceptable?

I was looking at this question on Physics SE which looks very much like a "trying to find an easy solution by someone else and take the credit at work" kind of thing. I personally think that this kind ...
86 views

### The on-topic page in the help center does not mention engineering

It recently came up in a meta post that OP had checked out the on-topic page in the help center, and could not see anything about engineering. That does seem to be the case, and although the tour ...
200 views

### Is this a bad question? Or a poor fit for this site?

I wrote this question yesterday, and it got a downvote. I'm not unhappy about it, but I feel that I don't understand why. Is my question not relevant for this site? I have almost no formal ...
55 views

### About an “on hold” question

My question has been put on hold as unclear. I can't understand why. I think I gave sufficient definition of my question and of its purpose. Some further explanation of why it appears unclear would ...
61 views

My answer to the question, "effect of fiber optic on NA" was deleted with the reason given being, "Please don't post complete answers to the underlying problem in homework-like questions." I believe ...
243 views

### Should I not edit my old questions on a spree?

I recently visited a couple of old questions that I had posted and there were a lot of edits (mainly grammatical but not all) that I wanted to make. I edited a couple of them and went back to the ...
234 views

### Data collection: When should (or shouldn't) we exclude questions from the Hot Network Questions list?

The SE team has made several promising changes to the "Hot Network Questions" system. If you have previously found HNQs to be problematic, you are invited to participate in the discussion over there. ...
81 views

### Questions about statements in papers

I often read papers and am stuck on important statements/equations that are not satisfactorily explained to my understanding. Sometimes references are provided, but even then it's cumbersome to ...
55 views

### Are links to papers via Sci-Hub acceptable? [duplicate]

Sci-Hub seems to be something many commercial web resources would try to avoid linking to: such links might be compared to links to warez. But I've just seen a question which has a link to Sci-Hub ...
272 views

### Which of several disagreeing answers to accept?

Last week, I asked a question about an everyday physical phenomenon (In aluminum, how does electricity travel through the surface oxide layer?). I was fortunate enough to get two answers and some ...
145 views

### Is it necessary to use heavy maths and math Jax?

Is use of high knowledge of maths in physics and heavy use of MathJax necessary to ask any questions, what if my question do not use heavy maths and do not sound complicatedly interesting like "...
133 views

### Am I allowed to call someone a kook?

Is it against the rules to call someone a kook?
107 views

### Should I prefer the most up-voted answer or the accepted answer?

I came across this question, where the accepted answer had a score of $-7$, but there was also an answer with a score of $31$. As a student who has absolutely no idea about quantum mechanics, or the"...
278 views

### Requests for Solutions Manuals

In a recent meta post, 20 most viewed questions that need answers, there was a discussion on whether a couple questions (specifically Cohen Tannoudji solutions to exercises and Is there any solution ...
466 views

### 20 most viewed questions that need answers

Here are 20 most viewed questions that need answers. Some of these questions may have answers with negative votes. Only questions with upvotes will be removed from this list. This list will be updated ...
171 views

### How to respond to questions from schizophrenic or pre-schizophrenic people?

About every other day, we get a question from a schizophrenic person. By "schizophrenic", I don't mean crackpots or people making elementary mistakes, I mean people with an actual mental disorder. For ...
201 views

### Should One Downvote a Question While Voting to Close It?

The title pretty much conveys what I want to ask but I would elaborate a bit. If a question is appropriate to be closed due to either of the listed reasons for a question to be closed, should one also ...
157 views

### Why was my comment deleted?

I had a comment on this answer to my question which both clarified that one of my definitions was correct (F = m * a is correct, but not super helpful in this ...
66 views

Without the link that's provided after enough back-and-forth, it's not clear to me how to easily "continue this discussion in chat." Could someone help on Don't heavier objects actually fall ...
1k views

### Update on the Manish situation

The fact that one of the moderators is pretty much inactive has been brought up many times already (e.g. this meta post from last year). In fact, he has been invited to step aside a couple of times by ...
396 views

### The role of good mechanics problems

Today I saw that this question Applying energy and momentum conservation to the problem of pulling a bent carpet at a constant speed about pulling a bent carpet was closed for being a homework ...
172 views

### Wrongly marked duplicate about why decay is random

I am not sure how to raise this issue, but I was looking for an answer to the question How do we know that nuclear decay is truly random and spontaneous?. This is an important question because we don'...
85 views

### Why has this question been put on hold?

I have a question about my Physics Stack Exchange post: What is wrong about the following reasoning concerning hypersphere cosmology? I was wondering why it is put on hold. It is honestly not clear ...