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FAQ for Physics Stack Exchange

Frequently Asked Questions This thread is an index of Frequently Asked Questions, and other resources, for Physics Stack Exchange. General questions about Stack Exchange For general questions about ...
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What if we clean several shopping questions..?

Today, I accidentally went through the questions under telescopes tag and all questions confused me totally. Looks like, there are many questions that seem to me like off-topic. I've listed several ...
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5 votes
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Problem in viewing MathJax formatted writing in smartphone

I access this site using Chrome from myou smartphone. Recently, the MathJax formatted writings appear overlapped, for example in the following answer: What could be the reason for this? Update: ...
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4 votes
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351 views

Why does the font size appear different for this question?

I saw a question on the Newest Questions page (the 3rd question in the image below) whose title and body were rendered in a smaller font compared to other questions. Here : https://i.stack.imgur.com/...
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4 votes
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Opera browser blocks log in Physics Stack Exchange - HSTS issue

I have difficulties to log in the Physics Stack Exchange site via the Opera browser. It says: Your connection is not private This server could not prove that it is physics.stackexchange.com; its ...
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4 votes
0 answers
97 views

What should I flag as duplicate? New question or old question?

Someone asked this question: Why linear displacement is length of the arc? which is similar to this question: Confused about linear displacement in circular motion. The second question has been ...
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4 votes
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Why are my upvotes displaced?

I wanted to upvote this answer and so I did. However, half an hour later the upvote was registered to this answer. I upvoted the intended answer again. Then this appeared, suggesting I upvoted yet ...
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3 votes
0 answers
129 views

User name disappeared

Consider: Until yesterday, my username was visible in this circle. But now it does not seem to be there. So I have to search my name under the 'users' section to go to my profile. Am I the only one ...
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3 votes
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Please reopen my question about a physical limit

I asked this question about what it is (if anything) that provides and upper limit to the speed of a turbine in a fluid stream: Maximum rotation rate of a turbine in a fluid with a given speed It was ...
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3 votes
0 answers
84 views

Can't logout from Stack Exchange

I am unable to log out from Stack Exchange in my browser, in both PC and mobile. After logging out, when I open the site again it appears as I am already logged in. I have not enabled the remembering ...
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  • 429
3 votes
0 answers
98 views

How does a simple question get put hold for being unclear?

https://physics.stackexchange.com/questions/277688/space-elevator-solved I don't understand what is unclear about this question?
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3 votes
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Views for a question

If a person opens a particular question more than once, are the views incremented just once or multiple times?
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3 votes
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58 views

What does the question count include?

At the time of writing this there where 64,202 questions according to the figure given on the questions-newest tab. What does this number represent, is it the total number of questions on the website, ...
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3 votes
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109 views

What happens after death?

What will happen with my SE account after my death? Is there something that eg. warn foture users not to try contact with me, because I'm dead? Would my account be deleted for preserving servers ...
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3 votes
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Can not find edit request that I had skipped

I "skipped" a proposed edit in the review on https://physics.stackexchange.com/a/107909/42975 because I was editing myself quite a lot. Now, I want to manually apply the useful fixes from it, but can ...
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3 votes
0 answers
31 views

Does anybody experience freezing and chrashing of browser while on SE?

I'm using Chrome (Version 29.0.1547.76 m), and lately whether I'm on physics.stackexchange, or on mathematica.stackexchange, when I'm writing a long question, usually with a lot of equations in latex, ...
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3 votes
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Editing tags not allowed because not 6 characters?

I was trying to edit the post "Big Bang Anybody?" by adding a popular-science tag to it.. While until now, even if I didn't edit the body of the post, I could still edit the tags. However, it seems ...
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3 votes
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64 views

Edit Suggestion disappeared

An hour or so ago I suggested an edit for this question about heat-conductance in diamonds. When I now browse to said question, I don’t see the block ‘your edit is being reviewed’ anymore, nor does it ...
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2 votes
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Are questions front-paged for unspecified reasons perhaps related to popularization of a site?

Can a question be "front paged" by staffers for reasons that are not closely related either to significant developments in physics or to edits (either to the question itself or to the ...
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2 votes
0 answers
98 views

How can I start a conversation with a specific user (in chat or otherwise)?

Say I provided an answer to a question, and then another user commented on my answer pointing out some mistakes. I realise my answer has serious flaws and decided to delete it. Now, I want to talk to ...
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2 votes
0 answers
61 views

Automatic rejection of edit where I only added tags

To my surprise, I tried to add a couple of tags to this question but the edit was automatically rejected with an error message about how the changes must be at least 6 characters long, pointing to the ...
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2 votes
0 answers
74 views

How to find a missing post?

Earlier this month I gave a very good answer to a question about the twin paradox. Yet now I can't find the question or answer, either in my page, which supposedly lists all my answers, or by ...
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2 votes
0 answers
86 views

Questions held for being opinion based

I just posed a question in causal set notation (in general relativity), referencing papers 50 years old and 5 years old, seeking to know whether notation has changed or usage is a matter of personal ...
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2 votes
0 answers
59 views

Why do I keep getting logged out all the time these days?

In the old days, I used to stay logged in to Physics.SE (and other Stack Exchange sites) for many weeks at a time. Only very occasionally would I find myself mysteriously logged out, and have to log ...
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2 votes
0 answers
58 views

More rep has changed than I can account for

Yesterday I had 1693 rep, but when I logged on today I had only 1689 left. I went in to see if I'd gotten any downvotes. There weren't any, but I did have a "post was removed" notice - I ticked the "...
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1 vote
0 answers
125 views

Where should I ask a question about Anatoli Bugorski?

I want to ask about Anatoli Bugorski, the scientist who accidentally put his head in an active particle accelerator. My question is about the shape of his wound, and I don't understand why it was ...
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1 vote
0 answers
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How Can I Ask for an Expert Opinion Without Getting My Question Put On Hold for Soliciting Opinions?

Recently this question about the von Neumann Interpretation of QM (a.k.a. the Consciousness Causes Collapse Hypothesis, CCCH) was put on hold within days of being asked. The reason given was that it ...
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1 vote
0 answers
75 views

Answer incorrectly deleted

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 ...
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1 vote
0 answers
37 views

Is there a badge for giving a highly up-voted recent answer to a very old question?

I have this theory that an answer today given to an old question is unlikely to be up-voted highly, if at all. I believe this is because people tend to lose interest in old questions, and can't be ...
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1 vote
0 answers
92 views

MathJax not working in some cases

I'm not sure if this is the right place to ask this question, but I'm experiencing rather strange behavior of MathJax in Google Chrome. On some stackexchange sites the LateX equations don't render. On ...
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1 vote
0 answers
87 views

User feed and Question feed

Do we have User feed and Question feed by emails notification? If we do not, can we promote to have these features? PS. It is NOT asking about off-site service. What I wonder is whether there is an ...
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1 vote
0 answers
29 views

Tag for 'general-relativity' does not load in rss feeder

I'm using the latest version of RSSOwl and the tag [general-relativity] does not load any questions. The feed sits next to the other feeds I have and actually looks for questions every time I try to ...
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81 views

Where are the community guidelines in dealing with plagiarism?

Plagiarism online is something of a plague. What guidelines does this site set itself in detecting and dealing with such cases? Are there any? And if so, can someone point me towards it?
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What is , "You haven't cast a vote to undo"

I want to upvote an answer, I previously down voted. It shows "You haven't cast a vote to undo". . How do I cast one?
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0 answers
60 views

Starting a chat, including existing comments

There are a few features in Stack Exchange that I can never remember how to do. How do I move a discussion that has started in an exchange of comments to a chat, while copying the existing discussion ...
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0 votes
0 answers
58 views

Persistent error logging into physics.stackexchange.com with OpenID (Unable to log in with your OpenID provider)

OS - Windows 7 Browser - Firefox v26.0 For the past few days I have been unable to log into physics.stackexchange.com using OpenID. The error I get is below. Strangely, I can log in by browsing to ...
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0 votes
0 answers
35 views

Stackexchange General login problem (meta)

I can not login through mobile view of stackexchange website. when i click over login, why there is no login option through some mobile browsers?
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