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Processing time/speed for Mosaic to New Raster I have a question on speeding up “Mosaic to New Raster” or finding an alternative.  After completing a suitability analysis we are trying to define movement corridors.  We used a modified CircuitScape that left 4 folders, each containing 1080 raster tiles across our study area.  We now need combine all 1080 rasters in each folder then combine these 4 combined rasters into a final raster which will be analyzed for paths.  I tried a python script that just wouldn’t work so I went on to Model Builder.  It iterates through the grids in the folder, collects the values (raster names), then mosaics all to a new raster.  It has been running for 5 days now and the results window indicates it is working.  I’m hoping it will conclude in the next day or 2.  But, we still have 3 more folders, each with 1080 rasters, that need to be mosaicked.  So….is there a way to speed up Mosaic to New Raster or is there an alternative I could use to produce the final grid?    The cell size is 270 meters, 540 x 540 columns and rows, 1 band, 32 bit floating. Who or what was Tom Bombadil? What are the criteria for posts to be included in "Top network posts" on new profile page? From the name of it, certainly it looks for posts with the highest scores. However, recently I found that some of the posts are not listed. Example: My  (not sure if it's that good, just because hot network question) was included in some point, but then it's not listed on . I guess it's because the question was closed, e.g as a dupe? (I don't have any hidden communities on the settings)    However, it's listed normally on .    Also, what other criteria that makes the posts to be included/excluded in &quot;Top network posts&quot;? Total space of a finite rank locally free sheaf, Vakil's 17.1.4 & 17.1.G This inequality $a+b^2+c^3+d^4\ge \frac{1}{a}+\frac{1}{b^2}+\frac{1}{c^3}+\frac{1}{d^4}$ let $0&lt;a\le b\le c\le d$, and such $abcd=1$,show that   $$a+b^2+c^3+d^4\ge \dfrac{1}{a}+\dfrac{1}{b^2}+\dfrac{1}{c^3}+\dfrac{1}{d^4}$$   it seems harder than How does Hisoka see Gon exactly? As a rival or as a toy to entertain himself? Hisoka hinted that Gon is his treasure and also his prey, but it can't be both, right? Because in the end, he didn't want Gon to die no matter what.  So it's weird that he didn't want Gon to die but also made him his prey to fight till death. Is it sexual for Hisoka or what? I still remember the 'Schwing' thing. Redirect 301 with hash part (anchor) # $X$,$Y$,$Z$ mutually independent implies $X+Y$ independent of $Z$ Permission denied in 777 folder john@ubuntu01:~$ sudo ls -l /var/opt/gitlab/git-data/repositories/GL/www.git total 25068 drwxr-xr-x  2 git  git      4096 aug 14 19:58 branches -rw-r--r--  1 git  git        66 aug 14 19:58 config drwxrwxrwx  2 root root     4096 aug 15 14:56 custom_hooks -rw-r--r--  1 git  git        73 aug 14 19:58 description -rw-r--r--  1 git  git        23 aug 14 19:58 HEAD lrwxrwxrwx  1 git  git        47 aug 14 19:58 hooks -&gt; /opt/gitlab/embedded/service/gitlab-shell/hooks drwxr-xr-x  2 git  git      4096 aug 14 19:58 hooks.old.1471193907 -rw-r--r--  1 git  git      1329 aug 15 14:48 index drwxr-xr-x  2 git  git      4096 aug 15 13:58 info drwxr-xr-x 71 git  git      4096 aug 15 14:55 objects -rw-r--r--  1 git  git        98 aug 15 13:58 packed-refs -rw-r--r--  1 git  git  25618530 aug 15 14:03 post-receive.log drwxr-xr-x  5 git  git      4096 aug 14 20:31 refs john@ubuntu01:~$ ls -l /var/opt/gitlab/git-data/repositories/GL/www.git ls: cannot access '/var/opt/gitlab/git-data/repositories/GL/www.git': Permission denied   Here are ACLs  john@ubuntu01:~$ sudo lsattr /var/opt/gitlab/git-data/repositories/GL/www.git/custom_hooks -------------e-- /var/opt/gitlab/git-data/repositories/GL/www.git/custom_hooks/post-receive   I have never seen this before. No permission to LS even with 777? I need to share this folder for more convenient development. How can I solve it? Thank you.  EDITED: (here are your requests)  john@ubuntu01:~$ sudo ls -ld /var/opt/gitlab/git-data/repositories/GL/www.git drwxrwxrwx 8 git git 4096 aug 15 14:48 /var/opt/gitlab/git-data/repositories/GL/www.git john@ubuntu01:~$ sudo ls -ld /var/opt/gitlab/git-data/repositories/GL/www.git/custom_hooks drwxrwxrwx 2 root root 4096 aug 15 14:56 /var/opt/gitlab/git-data/repositories/GL/www.git/custom_hooks   EDITED MORE  sudo ls -ld /var/opt/gitlab/git-‌​data/repositories/GL/‌​www.git ls: cannot access '/var/opt/gitlab/git-‌​data/repositories/GL/‌​www.git': No such file or directory   hmmm... what is this? Continuous v. per-chapter/section numbering of figures, tables, and other document elements Some document elements (e.g., figures in the book class) are numbered per chapter (figure 1.1, 1.2, 2.1, ...). How can I achieve continuous numbering (figure 1, 2, 3, ...)?  And vice versa: Some document elements (e.g., figures in the article class) are numbered continuously. How can I achieve per-section numbering?  \documentclass{book}% for "vice versa" variant, replace `book` with `article`  \begin{document}  \chapter{foo}% for "vice versa" variant, replace `\chapter` with `\section`  \begin{figure} \centering \rule{1cm}{1cm}% placeholder for graphic \caption{A figure} \end{figure}  \end{document}   Bonus question: Is it possible to adjust the numbering of the sectioning headings themselves? Can I, e.g., switch from per-chapter to continuous numbering of sections in the book class? Mongodb: Possible to enlarge a capped collection? If a collection is created as capped, is it possible to increase the cap without losing data?  Or to increase the cap without recreating the whole collection?  Thanks How to know if other threads have finished? Let $a,b,c>0$ such that $a+b+c=3$, find max/min of $\frac1{a^2+1}+\frac1{b^2+1}+\frac1{c^2+1}$ Let $a,b,c&gt;0$ be real numbers such that $a+b+c=3$, find the maximum and minimum of:   $$\frac1{a^2+1}+\frac1{b^2+1}+\frac1{c^2+1}$$   I've tried using AM-GM-HM, but I can't find the maximum or the minimum.  Using intuition, substituting $a=b=c=1$ should give us one of the optimums, but I cannot prove that it is the optimum. If a derivative of a continuous function has a limit, must it agree with that limit? Suppose we have a continuous function $f : \mathbb{R} \to \mathbb{R}$. Suppose also that for a certain point $c$, $\lim_{x \to c} f'(x)$ exists. Must $f'(c)$ exist as well, and be equal to this limit?  This isn't quite the same as asking if derivatives are always continuous. The well-known function $f(x) = x^2 \sin (1/x)$ is continuous and differentiable everywhere, but its derivative has no limit at $x = 0$. I'm wondering if the derivative of a continuous function can have a discontinuity where its limit does exist. Better explanation of the common general relativity illustration (stretched sheet of fabric) I've seen many science popularisation documentaries and read few books (obviously not being scientist myself). I am able to process and understand basic ideas behind most of these. However for general relativity there is this one illustration, which is being used over and over (image from Wikipedia):    I always thought that general relativity gives another way how you can describe gravity. However for this illustration to work, there needs to be another force, pulling the object down (referring to a direction in the attached image). If I put two non-moving objects in the image, what force will pull them together?  So where is my understanding incorrect? Or is general relativity not about explaining gravity and just describes how heavy objects bends spacetime (in that case the analogy is being used not correctly in my opinion)?    UPDATE Thank you for the answers and comments. Namely the XKCD comics is a spot on. I understand that the analogy with bent sheet of fabric pretty bad, but it seems that it can be fixed if you don't bent the fabric, but just distort the drawn grid.   Would you be so kind and answer the second part of the question as well - whether general relativity is explaining gravitational force. To me it seems that it is not (bending of spacetime simply can not affect two non-moving objects). However most of the time it is being presented that it does. jquery's append not working with svg element? Is there a higher register word that means to criticize something highly specific and inconsequential? Any synonym I can think of seems a little too vernacular, e.g. "to split hairs", "to nitpick". What's a more professional/academic way of saying this? I'd prefer a single word if one exists. How do remove the CD / DVD install as a source for apt-get packages when installing new features? I'm running a Ubuntu server (9.0.4 'Jaunty') as a VMware image.  It's a real pain on the odd occasion I need to install a new package to have to fish out the install CD-ROM, and make it available to the VMware image so I can continue the package install.  Is there any way to take the original installation media out of the list of source packages - I'm assuming all packages will be available on the internet.  Thanks. I hope this qualifies as a programming question, as in any programming tutorial, you eventually come across 'foo' in the code examples. (yeah, right?)  what does 'foo' really mean?  If it is meant to mean nothing, when did it begin to be used so? If it was possible to dig a hole that went from one side of the Earth to the other... ...And you jumped in.  What would happen when you got to the middle of the Earth? Would you gradually slow down, until you got to the middle and once you were in middle would every direction feel like it was up?