Just a thought, I see that many questions arise with 'Blockchain' and to address that can we have separate community in the Stack Exchange network?  We do have a 'Bitcoin' community, can we make a Blockchain community in general?  If no, then please point me why we should avoid it?
I have an idea or subject that should have a Q&amp;A, and want to propose a new site. How can I do this?  Related:
Is there a way to make bash more TAB friendly? I use bash on both my Mac and as my cygwin shell. Overall, I'm quite pleased with it.  My one complaint however is that its TAB completion isn't as good as Windows Command Line TAB completion.   For example, if there are two files with the same prefix, then bash just beeps at me when I try to TAB complete. If I keep nailing TAB, then it will eventually show me a list of potential files.  I definately prefer how Windows will cycle through potential files right on the command line.   Is there a way to get bash to operate similar to Windows Command Line in this regard?  If there isn't (I do not want to switch shells), am I missing something about TAB completion in bash? Is there a more efficient way to use it? I asked this question at stackoverflow and have been kindly redirected here.  I'd like to align some equations in Latex using the AMS packages. Each equation has two equal signs that need to be aligned. So something in the line of  A = B = C D = E = F   I've tried using the align-environment like this  \begin{align} A &amp;= B &amp;= C \\ D &amp;= E &amp;= F \end{align}   This works in principle (it aligns), however it adds ridiculously large spaces before the second equal sign in each line. But I just want the line to runs as if there was no additional alignment tab. Only when I replace for example "B" by "BBB" I want the equal sign before "F" to shift to right the exact amount of space.  Could anyone help me out on that one? It's kind of driving me crazy since I don't get the idea of that strange behavior and I just can't find any solution. Maybe alignat could help, but I don't really get how that environment works.  Cheers, Oliver I'm not the most experienced person when it comes to commands. I worked out how to do stuff like when holding x you have y effect. I wanted to think of something that gave other people an effect when hit. Here is what I came up with but I got stuck when it said it couldn't execute the command.  /scoreboard objective add nokill dummy  /scoreboard objective add poi dummy  /scoreboard players set [player] nokill 1  /scoreboard players add @a poi 1 {SelectedItem:{id:minecraft:diamond_sword,display:{Name:{Poison sword}}}}  /execute @a[score_poi_min=1] ~ ~ ~ /effect @p[score_nokill_max=1,r=5] {HurtTime:1} minecraft:poison 10 1 How does gravity work on Serenity? When the good ship Serenity is traveling in deep space, the crew experiences what looks like an Earth-normal (or Earth That Was-normal) level of gravity. Is it ever explained how the ship is able to generate artificial gravity? The ship doesn't spin, so  is out.  is a possibility, but I think the gravity in the ship pulls in a direction that is perpendicular to the direction the ship is usually traveling in, not opposite, like this method would require.   So: how does she pull it off?   Extra credit: how does she pull it off in the episode ? Serenity's engine is totally dead, to the extent where not even life support systems are online. Yet Mal still has to valiantly haul himself around on the floor to replace the compression coil, so whatever creates the artificial gravity on Serenity is clearly still going. How? How to delete a file ending in a dot in Windows 7? After installing Cygwin on Windows 7 and realizing I'm better of with using Linux on a different partition, I wanted to uninstall it. However, Cygwin has no uninstaller so I was left with the option of deleting the whole folder it was installed in – which I did.  The problem is that a single file remained, in the whole directory tree, named README. at  C:\cygwin\usr\share\texmf-dist\doc\latex\hausarbeit-jura\README.  I know Windows isn't supposed to allow files with names ending in ., but this one obviously got through, and I cannot delete it. When trying to do that, I get     Item Not Found      This is no longer located in C:\cygwin\usr\share\texmf-dist\doc\latex\hausarbeit-jura. Verify the item's location and try again.   When viewing the properties of the file (Right-click, Properties), Windows tells me that it has 0 bytes.   However, when viewing it in the explorer window, and clicking on it, the windows status bar thing tells me it has 517 bytes.  Any ideas on how to get rid of it? I am a graduate student in mathematics who would like to learn some classical mechanics. However, there is one caveat: I am not interested in the standard coordinate approach. I can't help but think of the fields that arise in physics as sections of vector bundles (or maybe principal bundles) and would love an approach to classical mechanics or what have you that took advantage of this.  Now for the questions:   Is there a text book you would recommend that phrases the constructions in classical mechanics via bundles without an appeal to transition functions?   What are the drawbacks to this approach other than the fact that it makes computations less doable? (if it does that)   Are there benefits to thinking about things this way, ie would it be of benefit to someone attempting to learn this material to do it this way? Can someone please let me know the minimum system requirements and GPU requirement to run blender 2.80 and eevee smoothly?   Also please let me know the optimum system requirements for the purpose of    environment modeling Game development charachter modelling and animation   Also if someone can suggest me a good desktop/laptop for personal use that is compatible with blender 2.80 in a low budget.  Any help will be much appreciated.  Thanks in advance! Could you please correct my batch command?   I had 100 img images which need to be converted into 8 unsigned bit format for further use in TIMESAT.   mkdir test for %%f in (*.img) do gdal_translate -of ENVI -scale -1 1 1 255 -a_nodata 0 -co INTERLEAVE=BSQ "%%f" test/%%f.dat Where is the "Manipulate Centers Only" button in Blender 2.8? I have looked just about everywhere on the Internet and I can't find the answer to this question. Where the hell is the "Manipulate Centers Only" button in Blender 2.8???? It's the the double arrow icon here:    I seem to have enabled it somehow and I can't scale or rotate my object. What's a good back-up strategy for 1 desktop PC? How to input Traditional Chinese in pdfLaTeX I'm trying to write Chinese using pdfLaTeX. But currently I can only write Simplified Chinese Characters, If I try writing Traditional Chinese then the text wont show up.  This is what I have:  \documentclass{article} \usepackage{CJKutf8} \begin{document} \begin{CJK*}{UTF8}{gbsn} 文章内容。 \clearpage\end{CJK*} \end{document}   What would I need to do to get Traditional Chinese? Interpreting the residuals vs. fitted values plot for verifying the assumptions of a linear model Determine if the convergence of $f_n(x) = \sqrt{x^2 + \frac{1}{n^2}}$ is uniform. $f_n(x) = \sqrt{x^2 + \frac{1}{n^2}}$ converges pointwise in a set $E = [0, \infty)$ to $f(x) = x$.   This problem reminds me a lot of how $\frac{x}{n}$ fails to converge uniformly to $f=0$ on $[0,\infty]$, but does converge uniformly on $[0,a]$. However, when we proved that we used the definition of uniform convergence. I do not wish to do that here.  I wish to use the Weierstrass test here. And that is where I'm stuck. I cannot find $M_n = \sup\limits_{x \in E} |f_n(x)-f(x)|$. Can someone help me out here? Axiom of Choice: Family of non-empty sets mutually disjoint or not? I am trying to run an executable file from a network drive on Windows 7 Professional (64-bit) in order to install a program, but, each time I try, it doesn't run and the following message appears:  {path-name} The specified path does not exist. Check the path, and then try again.   I am definitely connected to the network drive as I can see all of the directories and files, and can even open non-executable file types. Also, I am fairly confident that this is neither a firewall nor a permissions issue. Two blue arrows at top right of icons Windows 7 "Waiting for background program to close" I am using Windows 7 Home Premium. When I shut down my computer why does the screen show this:    Before shutting down I'm close all programs. How to add an image to a JPanel? I have a  to which I'd like to add JPEG and PNG images that I generate on the fly.  All the examples I've seen so far in the , specially in the  use ImageIcons.  I'm generating these images as byte arrays, and they are usually larger than the common icon they use in the examples, at 640x480.   Is there any (performance or other) problem in using the ImageIcon class to display an image that size in a JPanel? What's the usual way of doing it? How to add an image to a JPanel without using the ImageIcon class?   Edit: A more careful examination of the tutorials and the API shows that you cannot add an ImageIcon directly to a JPanel. Instead, they achieve the same effect by setting the image as an icon of a JLabel. This just doesn't feel right... How do I set a user environment variable? (permanently, not session) Only actions taken are displayed on question while checking the history of Low Quality Posts review