# Can I refer to a previous question I asked within the content of a new question?

I am thinking about a new question that is based on a premise that I stated in (I did not claim that it - the premise - was a new idea), and comments and answers I received in response to a previous question that I posted.

Can I (and, if so, should I- ethically/ or in good taste etc.) identify the question title for reference within the body of the text of the new question?

• I took out your tag request because that should be posted separately. You can bring it up in Physics Chat if you like, to get preliminary feedback before posting on meta. Jan 18 '17 at 3:00

Absolutely, it's a good idea to refer to previous questions (yours or other people's) when doing so is useful. But don't just use the question title; you should include a link to it. If you include just the URL of the question, the SE software will automatically convert the link to display the question title, e.g. if I write

https://physics.meta.stackexchange.com/questions/9508


Alternatively, you can give your own link text by using the appropriate Markdown:

[the question about referring to previous questions](https://physics.meta.stackexchange.com/questions/9508)


Sure, why not?*

* We can't really give you clear advice on yes or no without seeing the exact wording of the question in mind. But in most cases, it's fine. Imagine "If pV = nRT, then what happens in a nozzle flow" can easily lead to "Why does pV = nRT anyway?"

• I see you have read some of my answers - I originally did describe why PV=nRT in the errata question, but I edited it out - the answer seemed too long. I appreciate the touch of levity in your comment, Jan 18 '17 at 3:11
• @JohnFletcher Actually, I didn't read anything beforehand! My only contribution around here is fluid dynamics related and that was the first thing that popped into my head... Jan 18 '17 at 3:15
• The odds of that are in the entropy realm! I have answered three questions - one was on the purpose of a combustion chamber and nozzle in a rocket engine, another was on the possible misinterpretation of Boyle's Law in a textbook. Jan 18 '17 at 3:22
• @JohnFletcher Well, combustion, rockets, fluids, and computer simulations are all my PhD area... So I imagine we'll be crossing paths again and again. Welcome to the community (and sub-community)! Jan 18 '17 at 3:24