When I want to copy code or text from the question page into the code snippet editor, I can't do so since the popup dialog is blocking access to the underlying text.    I can copy the text before I open up the code snippet editor, but if I want to copy more text or code that I didn't get the first time, I have to open up a new tab instead and grab it from there.  What's the best way for doing that?   Closing the popup will make the content already sitting in the code snippet editor to be lost.  How can I copy something from a post (question/answer) to code snippet editor, after I opened it?
When I'm editing a stack snippet, I often want to copy code from the original question into the snippet. But while the snippet editor is on display, there's no way to access the question, other than opening another tab/window. What I often do instead is copy all the code in the question to the clipboard, open the snippet editor, then paste it all in and revise it to what I want. But when the original code is poorly designed, that ends up being more work than just copying the bits and pieces that I want.  There could be a "View Question" button that pops up the question over the snippet editor and allows copying. Or maybe the Snippet Editor could be draggable and resizable, so you can reveal the question and copy from it; but this would require that it not be purely modal.
Show that $\langle 2,x \rangle$ is not a principal ideal in $\mathbb Z [x]$ Hi I don't know how to show that $\langle 2,x \rangle$ is not principal and the definition of a principal ideal is unclear to me. I need help on this, please.   The ring that I am talking about is $\mathbb{Z}[x]$ so $\langle 2,x \rangle$ refers to $2g(x) + xf(x)$ where $g(x)$, $f(x)$ belongs to $\mathbb{Z}[x]$. What's the difference between a microcontroller and a microprocessor? What is the best way to represent show and hide in icons? I have a web page that has a list of columns of information.  All columns have names and then some of the columns have items in them.   I want to have an icon to represent   Hide all empty columns Showing all columns   All of the icons i see for hide look like "delete" so i want to see if there are any representations of "hide" icons that don't look like delete.  And for "show" the only thing i see is an eye graphic which doesn't seem very intuitive to me.  Does anyone have any recommendations for good "hide" and "show" icons? Lecturer with anxiety. How to survive in academia? I've been a long time member of academia.SE but I created this alt account because the question is a bit embarrassing. I finished my PhD 4 years ago and after a 2 year postdoc at a different university secured a contractual lecturership. During my PhD I never realised I had fear of public speaking, because I always felt secure presenting in front of my supervisor. Even at conferences, his presence in the audience was enough to keep me relaxed.  Fast forward to my postdoc, I was mostly working and publishing by myself. So, even if I had to present something it was to my coauthors, with which I am okay. But as a lecturer doing research part of my time, I am involved in projects and seminars where I am expected to present my latest work. Being on my own has brought out my inner anxiety, so much so that I choked during a presentation, had to drink water to calm my nerves and apologise for my breathlessness and slurred speech. That was the most embarrasing thing in my life. Please note that the anxiety is not the result of me not publishing or doing research. I have published more than most in my department. Knowing that hasn't helped with the anxiety though. I am constantly making excuses to get out of project presentations and seminar talks. Fortunately, the anxiety is less intense in teaching and I am able to manage.   How do I survive as an academic? Now even conference presentations seem daunting. I can publish exclusively in journals, but how do I get out of giving project and departmental presentations? How can I politely refuse to present without revealing my situation? Or better yet, how do I fix the whole thing? That one bad presentation has really messed me up. In Age of Ultron, Thor seems to know something he possibly shouldn't? Sorry for the cryptic title, but I realise the film has only just been released in the UK and Europe and is yet to be released in the US.  I'll hide all substantial parts of my question, just in case. I don't want to spoil anything.     At the end of Age of Ultron, Thor states that 4 infinity stones have now shown up in the last few years.   So,     By my count we have the Tesseract, from several of the first few films. The Aether, from Thor 2. The Chitauri Scepter, again from several films. And finally, we have The Orb, from Guardians.    Now, to my knowledge     Thor, and indeed none of the Avengers, should know about The Orb. I don't remember Thor visiting the Collector between GoTG and the AoU. So, how did Thor know that The Orb had appeared? Or is he referencing a different infinity stone?   I'm looking for an in universe answer, ideally. Assume the continuum hypothesis is false, and add that as an axiom to ZF set theory. How many cardinalities are between the rationals and the reals in this case? Only one? Infinitely many? Countably many? Uncountably many? What are the possibilities to the quantity of counterexamples? Why would Mystique's DNA allow for Sentinels that can duplicate mutant powers? Do creatures that enter the battlefield at the same time see each other enter? What if a light clock travels perpendicular to mirrors that make up the clock? Prove that $\sum\limits_{k=0}^m\binom{m}k\binom{n}{r+k}=\binom{m+n}{m+r}$ using combinatoric arguments. Prove that $$\sum\limits_{k=0}^m\binom{m}k\binom{n}{r+k}=\binom{m+n}{m+r}$$ using combinatoric arguments.   I prefer you to answer using an analogy to a combinatoric problem or else I'll have trouble understanding.  I tried:  Let $m$ represent a group of boys and $n$ represent a group of girls. We want to form a committee with the condition that there must be $r$ more girls than boys on the committee. There's two ways of doing this. (I'm having trouble with the right-hand side.)  The left-hand side is one way of doing this. So we split the problem to different cases. One such case is where there are no boys on the committee, and so, there's $\binom{m}0\binom{n}{r+0}$ ways of forming a committee. Next, we can have 1 boy on the committee. There's $\binom{m}1\binom{n}{r+1}$ ways to do this. We repeat this process until we have $\binom{m}k\binom{n}{r+k}$ ways of forming a committee. Summing up the cases will result in the right-hand side. However, as stated before, I don't really know how to explain the right-hand side. Maybe I used the wrong analogy? Detect when an iOS app is launched for the first time? How do I detect when an iOS app is launched for the first time? Pass extra parameters to an event handler? Laptop using 14.04 won't get past login GUI What is Kirito's relationship with the girls of SAO? jQuery find events handlers registered with an object What "allocation unit size" should I use for a drive with a single NTFS partition? I'm formatting a 1TB external hard drive as a single NTFS partition.  This drive is mainly meant for storing media.  Should I choose something other than the default allocation unit size?  The options range from 512 bytes to 64K.  Are there any guidelines that I should use with partitions storing other data?  Should I stop poking around and just leave it at "default"? A story about a male protagonist with special eyes that tells him if things are safe or not; green = safe. Can’t remember if it’s a manga or webtoon. It starts with a male protagonist who was dying on a battlefield, the goddess took pity on him, sent his emotions back into his younger self, (not memories). He had eyes that told him what is safe/good and what is dangerous/bad by using colors: green, orange, red. He used this to gamble, his eyes stopped working, borrowed money from his ex-girlfriend (who works in a cafe). Money got stolen while he took a nap by a river, the evil lady who stole his money tried to get him to enter a contract. From his future emotions, he knew he wanted an invitation instead. This leads to a gathering of people in a school gym, their tasks are given. Invited people are given bags with tools. An oni busted out under the floor. People get killed. Stairways with gates, etc. This is considered the tutorial. Points are given after, those points are needed to buy daily necessities. The protagonist had the highest points, given VIP room. Etc. the method getApplicationContext() is undefined Command line option to check which filesystem I am using? Is there a command that will show which file system (ext3, ext4, FAT32, ...) the various partitions and disks are using?   Similar to how sudo fdisk -l lists information about disks and partitions? If $\sum_{n=1}^{\infty} a_n$ is absolutely convergent, then $\sum_{n=1}^{\infty} (a_n)^2$ is convergent