unable to open /dev/sdb: Read-only file system
How to restore original size and unboot my bootable USB pendrive
back commandbutton in jsf Formula to add minutes to date+time in Excel If I have a cell formatted as date+time in Excel, how can I add to this in terms of minutes? It would need to work whether I was adding 20 minutes, or 2,500 minutes.   So, for example if I had this spreadsheet, what formula could I put in B5 to get a result of 2013-09-22 09:10?    I tried using =B4+TIME(0,B3,0), but it gives 2013-09-21 09:10 which is a day off. It works fine though if B3 is less than a day's worth. How to use dependency injection for Plugins/Blocks [\Drupal::formbuilder() and \Drupal::config()]? limit of Holder norms: $\sup\limits_{x\in [a,b]} f(x) = \lim\limits_{n\rightarrow\infty} \left(\int_a^b (f(x))^n \;dx\right)^{\frac{1}{n}}$ Can a wizard choose where to place their soul piece when creating a horcrux? What are the most downvoted questions and answers on Stack Overflow, Server Fault, Meta, and Super User history to date?  Similarly, what are the most upvoted questions and answers on SO, SF, Meta, and SU to date? How do I use multirow in LaTeX? How to make foam with bubbles (beer, bath) My goal is create realistic foam. I mean really realistic foam with bubbles, no only SSS shader and done :-).   Use particle system's is not enough, because bubbles overlaps and black artifact's appear.  Any ideas? Some reference images and something about bubbles:    EDIT:  I want this for 360° turntable animation. Bubbles and foam does not to be animated, but should be good keep reasonable render time.  Of course, if someone know how to make it animated I glad to learn it and I'm sure I'm not only one. But my priority is realistic look, not animation.  Only for clarification: I don't need to know how to make bubbles in beer (there is very good tutorial by Andy Price), please focus only on foam. Beer is not important. How does mission progress work in multiplayer? Prove that the graph is connected I was wondering if someone can help me understand how prove that this graph is connected.  Given a graph with n vertices, prove that if the degree of each vertex is at least $(n − 1)/2$ then the graph is connected.  So far I know that about connected graphs:  An undirected graph is called connected if there is a path between every pair of distinct vertices of the graph  The distance between two vertices in a graph is the length of the shortest path between them.  The diameter of a graph is the distance between the two vertices that are farthest apart. URL of cited web site in bibliography I am using natbib with the chicago style as bibliography style. I am trying to cite a web site, but in the bibliography the URL (given in the BibTeX entry) is not printed.   Is there a simple solution to this matter? What am I doing wrong?  ok, as a little example (the entries are generated via Mendeley)  @misc{Carlson2011,    author = {Carlson, Nicholas},   booktitle = {Businessinsider.com},   title = {{How Many Users Does Twitter REALLY  Have?}},   url = {www.businessinsider.com/chart-of-the-day-how-many-users-does-twitter-really-have-2011-31/3},   year = {2011} }   and the output in chicago-style looks like this:     Carlson, N. (2011). How Many Users Does Twitter REALLY Have? Value of $x=\sum\limits_{n=1}^\infty {\frac{1}{10^n-1}} $ and location of second digit $1$ of $x$ What is the value of the series   $\sum\limits_{n=1}^\infty {\frac{1}{10^n-1}}$   and can one find closed forms for the sums   $\sum\limits_{n=1}^N {\frac{1}{10^n-1}}$?   I found that $\sum_{n=1}^N {\frac{1}{10^n-1}} $  =  $\sum_{n=1}^N (\lim_{m\to\infty  }{\frac{10^{-n}-10^{-nm}}{1-10^{-n}}})$  =  $0.111\ldots+0.0101\ldots+\ldots$ but I can't go farther.     The original question is: "Where does the second '1' appear?" In the DC Comics Universe, What Happens to Earthlings Under a Red Sun? Fluent and Query Expression — Is there any benefit(s) of one over other? How can I find out where an email really came from? Stack Overflow has successfully borrowed at least one XBox feature (Achievements).  I'd like to see another feature borrowed as well. Let's say I'm playing Halo online and another player is being a bigot.  I have the option to add him to a list of ignored users.  After doing that, all the racist things he says will never be heard through my headphones anymore. Now, on Stack Overflow, I'd like the ability to add a user to a list of ignored users.  This would hide all of that user's comments, and maybe his questions and answers as well (not sure if hiding questions/answers is necessary). This serves multiple purposes:  It would make it easy for users to avoid other users' flamebait. It would give users a more appropriate response to flamebait. The ability to start flame wars would be reduced, since fewer users would see those comments. Users would now have an incentive to be more diplomatic, as there is now a negative consequence to the behavior (the silent treatment). Administrators could review which users are the most often ignored, which would be a strong indication that someone should be  or even locked out of their account. Administrators wouldn't have to spend as much time dealing with complaints about abusive users, since users would have a better way to respond.    makes a good point in a comment to an answer, that I thought should get more visibility:  I had a problem, reported it and got the response &quot;not bad enough to do anything about, sorry&quot;. Which is kind of true, because the only options available to the mods are the nuclear one (penalty box) and the zero-effect one (do nothing). We need a middle ground option where abuse can be handled for you without also being handled for everyone. I've been using gksudo nautilus and sudo nautilus through Alt+F2.   What's the difference? They look very similar! Where to upload too big files? I have a big HTML file that causes no errors in most of the browsers. However, when I open it with, let's say, Google Chrome, the program shuts down and I cannot trace why this is happening.   This HTML file is quite big and cannot be posted to a question in SO, but it should be ran as a whole as I cannot trace where the problem is. What is/are the most appropriate file upload website/s to upload and paste the link into the question? Correcting projection of 360° content onto a sphere - distortion at the poles I'm using the Autopano Giga 4.4 and Autopano Video Pro 2.6 to stitch and create spherical content, but I've recently moved into wanting to create 360° tours via Unity. I know this is partly a developers question, but if anyone out there can help me with the right specs for exporting a spherical image or video from Giga to use to create the image for the inside of the sphere on Unity, I'd appreciate it!  Experimenting with Premiere and FCPX to edit highlight reels of spherical content, I've had seamless experiences created. For some reason in Unity, the images appear to be stretched around the sphere wrong and it's creates issues on the top and bottom of the image:    The image shown is the bottom of the sphere. I'm using the Android platform to hopefully turn these tours into apps when completed. Thank you for any help! What is the difference between a deep copy and a shallow copy? What is the difference between a deep copy and a shallow copy?