Questions tagged [duplicates]

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Should useful duplicates be obviously linked from their nominal original question?

There has been much discussion in the past on both Physics and other Metas about How to deal with answers to duplicate questions, especially when the duplicate questions or its answers are useful. It ...
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6 votes
0 answers
115 views

Yet another question for reopening

My question on diagonalizing the inertia tensor using Euler angles was closed as a duplicate. The suggested duplicate is a question on converting a rotation matrix to Euler angles. My question is how ...
7 votes
1 answer
153 views

Question marked as duplicate older than supposed duplicate

The question 450511 Does a physical interpretation of density matrix cross-terms exist? of which I recently updated my answer, has been marked as duplicate of question 536038 Non-diagonal matrix ...
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2 votes
1 answer
70 views

Could book recommendations for non-equilibrium statistical mechanics be reopened?

I was looking for books on non equilibrium statistical mechanics and found the question severely lacking in good answers. Also the reason for closing it was a "duplicate" question about ...
  • 841
5 votes
1 answer
218 views

This is not a duplicate

I have a question about my Physics Stack Exchange post: If antiparticles are particles moving back in time, would messages from the future be possible? It was marked a duplicate of Is anti-matter ...
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8 votes
2 answers
132 views

Once a question has been cross-posted on a different site (i.e., a cross-site duplicate) and received an answer on the other site, what should we do?

The topic of cross-site duplicates has come up in many Physics.Meta questions so far, for example: Is it OK to cross-post a question that you previously asked in other SE site? Should users be cross-...
12 votes
1 answer
270 views

What to do when duplicate targets disagree?

There are several questions on Physics S.E. which have been marked as duplicate targets, yet their answers disagree with another. Two such examples would be Is energy conserved in an expanding ...
19 votes
1 answer
748 views

Is there a way to easily/automatically merge the many Veritasium questions?

There is a new Veritasium video, The Big Misconception About Electricity, which is prompting a bunch of nearly identical questions. Currently, although the questions are nearly identical most ...
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4 votes
1 answer
97 views

What happens when upvoting the automatic comment indicating duplicate?

When flagging a question as a duplicate, a comment appears under that post: "Does this answer your question?..." I have noticed that sometimes this comment has been upvoted. Also I have ...
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4 votes
0 answers
99 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 ...
  • 2,518
2 votes
1 answer
63 views

Answer deleted when posted to duplicate question

I came across the question Why does the melting point of water decreases with increase in pressure? and answered it. I found a day later that an earlier, almost identical question had been asked by ...
  • 1,239
7 votes
2 answers
159 views

Should I refrain from marking a question as a duplicate of my question or of a question that I answered?

Clearly, marking a question as a duplicate of either my own question or of a question that I answered is not against the rules. But, there seems to be a conflict of interest in the context of the &...
2 votes
3 answers
200 views

A downvoted question vs. a very well-received duplicate version of the same question!

Some months ago I asked a question entitled The "Satellite Paradox": Twin paradox in orbiting satellites, and a duplicate version entitled Special Relativity in Free Fall has recently ...
-1 votes
2 answers
83 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 ...
user avatar
-7 votes
2 answers
127 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 ...
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8 votes
2 answers
172 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 ...
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0 votes
0 answers
131 views

Re-asking this specific reference request [duplicate]

A few days ago, I requested reference for TVMF. Unfortunately, this question was downvoted without a reason specified giving no space to improve and inappropriately making the question potentially ...
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14 votes
2 answers
256 views

Care over closing "duplicate" questions

On a number of occasions, I have seen questions closed as duplicates although the linked question either did not have answers, or had only poor answers, and in some cases it had already been closed (...
5 votes
1 answer
172 views

Why was my question closed as duplicate although the linked questions are related to different topics?

I asked this questiion yesterday: Does the shape of the Universe refer to the curvature of spacetime in 5-dimensional space? While I now understand and got good answers, my question was closed as ...
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1 vote
3 answers
98 views

Should I "migrate" an answer to another SE site?

Not understanding that it was (possibly) inappropriate, I asked a question on Physics SE that was very similar to a question that I had already asked on Aviation SE. Now that I understand that it was ...
2 votes
1 answer
52 views

Should I not ask a question on Physics Stack Exchange if I have already asked a similar question on Aviation Stack Exchange? [duplicate]

Is it recommended not to ask a question on Physics Stack Exchange if the same user has already asked a very similar question on Aviation Stack Exchange? I have received a message (from another user ...
17 votes
2 answers
274 views

Good answers to duplicate questions

I had a decent answer that received upvotes to a question that was later closed as a duplicate. Since the answer was well received, I thought it would be good to post it to the original question. I ...
  • 75.3k
1 vote
1 answer
79 views

What should I do to prove that my question is not similar to existing questions?

I am getting a notification that this question: If Newton's third law is true, why do things compress? is similar to this question: If Newton's third law is true, why can we sink in sand? ...
4 votes
1 answer
320 views

Would it be possible to give 10 minutes warning to people writing answers that the question will be closed or made duplicate in less than 10 minutes?

I had spent some time answering this question, when it was made duplicate by an announcement at the top "this question will no longer be accepting answers". Would it not be possible to give ten ...
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3 votes
2 answers
175 views

What should be done about a user asking the same question 5 times in two days?

A user has asked five almost identical questions about a misunderstanding of rope tension during the past two days. They are receiving similar answers, but don't agree with or accept any of them. ...
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-6 votes
1 answer
117 views

Question closed as duplicate but question clearly demonstrates understanding of duplicate. Is asking something else

I'm fairly sure I am asking something different than the proposed duplicate. And the question itself demonstrates understanding of the proposed duplicate answer Is there an alternative number to the ...
8 votes
1 answer
271 views

Confused over site policy regarding similar questions

I asked the question Confusion over QM Free Particle Propagator - Shankar 5.1 last night and it was closed as a duplicate earlier today, because it is similar to the question Free particle ...
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2 votes
3 answers
71 views

Should I edit closed or duplicate, but recently active questions?

The title says it all. While surfing through the questions page in Physics SE, sometimes I stumble upon a few closed and duplicate questions which are begging me to get salvaged. Simply put, they ...
user avatar
5 votes
3 answers
309 views

Is there some rule regarding a user posting the same answer at different (but similar) questions?

Recently I found that one user was posting the same answer (copy of a single answer) at different question though they were similar enough for same answer to be posted. So what is the consensus of the ...
user avatar
3 votes
2 answers
219 views

Is it right to post the same answer twice?

The question Why pouring milk from a height makes a chain shape? is marked as a duplicate of the question Wavy stream of liquid. The first one is about the chain-shape of a stream of flowing milk ...
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1 vote
0 answers
72 views

False duplicate

I asked this question: What is the magnetic field of a radially moving current? "What is the magnetic field of a radially moving current?" It was closed as a duplicate of "Why is the magnetic field ...
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6 votes
1 answer
148 views

A question erroneously labeled as duplicate

A question was submitted by user929304 titled: Balance of a spinning coin This question is about the case of rolling motion, as in, for instance, rolling down an incline. So you see a coin rolling ...
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2 votes
0 answers
205 views

Is this really a duplicate (object dropped in liquid)?

This question was considered a duplicate because of a previous question titled "Height of Water 'Splashing'". However, the previous question only considers the height of the splash, whereas answers to ...
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6 votes
2 answers
161 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 ...
1 vote
2 answers
81 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 ...
6 votes
0 answers
177 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'...
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3 votes
2 answers
105 views

Is it ok to link my own questions from another SE site?

While I was suspended for low quality questions. I asked astronomy.SE if it would be ok to write some of my low quality questions from here to a higher quality there? They said yes and I did and they ...
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3 votes
2 answers
122 views

Does the mechanism for marking duplicates change when you reach 50k rep, and if so, can this be avoided?

I voted to close this question as a duplicate, and to my surprise it was immediately closed. The message in the yellow box lists only my name, which makes it sound like my own vote was the only one ...
user avatar
18 votes
2 answers
479 views

Tips for quickly and efficiently searching for duplicate questions on Physics SE

There have been some recent discussions that it's getting increasingly difficult to find duplicates or near-duplicates of questions posted by new users, on the main site. Similar concepts are getting ...
user avatar
1 vote
1 answer
54 views

How can a question be marked as a duplicate if it's been asked **earlier** than a similar question?

This question has been asked 6 years and 10 months ago. How can it be a duplicate of this question, which has been asked 4 years and 4 months ago? Shouldn't the second be marked as a duplicate?
24 votes
6 answers
1k views

Is the demise of Stack Exchange (as we know it) ineluctable?

I feel concerned about a thought that I had recently. I am wondering if the current policy about duplicate questions may become problematic in the (very) long term for the health of Stack Exchange. ...
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2 votes
0 answers
137 views

Two similar-looking mechanics questions are not duplicates

This question about which way a bicycle will move when the pedal is pulled horizontally was closed as a duplicate of this question about how a yoyo will move when it is pulled horizontally. They are ...
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3 votes
1 answer
148 views

A duplicate question

This question Good books to understand the basics of material science Was marked as duplicate and redirected to Best Materials Science Introduction Book? The thing is, the second question was ...
user avatar
10 votes
2 answers
494 views

Is it OK to copy and paste part of own answer over and over, to answer new questions?

Here I report a subjectively funny case of a person who posts a wall of text over and over, since at least two years, to answer questions. He does modify it in order to adapt it to the asked question, ...
8 votes
0 answers
175 views

Prematurely closed "duplicate"

This question, asking why oceans look blue but rivers don't, was closed as a duplicate of another question, which was answered with a good explanation of why large masses of water, including oceans ...
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4 votes
0 answers
43 views

Question doesn't appear to be a duplicate

This older question Is the magnetic field zero inside an ideal conductor carrying a current? is explicitly about a regular conductor, but has been marked as a duplicate of a question about ...
  • 35.7k
7 votes
1 answer
198 views

Should this question really be marked as duplicate like this? They seem fundamentally different

The excellent answers to the question Why do metals only glow red, yellow and white and not through the full range of the spectrum? are valuable and helpful. I'm not sure why this question should be ...
  • 6,695
1 vote
1 answer
106 views

I request to write reason if you are marking a question as duplicate to other question

I recently asked a question: Why not Sun's gravity affect angular momentum of Earth? Then QMechanic, a moderator of this web site marked my question as a duplicate of: Tidal force of Sun? ...
3 votes
1 answer
57 views

Is it OK to direct many effective duplicate questions to an answer written by myself?

A recurring question on physics.stackexchange is "how do I understand gyroscopic precession?" The actual question may take many different forms, but the underlying problem is always that gyroscopic ...
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9 votes
3 answers
197 views

Should we add more answers/comments to the original question of the duplicate?

I personally think that the whole point of creating the duplicates is to encourage users to add new answers/comments to the original question of the duplicate. But what really seems to happen is that ...
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