Given the Hyperdrives and other tech in the Star Wars universe surely someone has traveled outside the Galaxy? Or does this happen but doesn't impact the stories or characters we know of? (I don't know much outside films and the CW series so be nice).
At the start of the movie it says:      "A long time ago in a galaxy far, far away...."   Does this mean that the entire Star Wars saga takes place in a single galaxy? To my understanding a galaxy isn't very big compared to the universe itself. Star Wars has many different sentient races, and the way they are presented suggests that most planets are host to only one of them (some exceptions like naboo). This strongly leads me to believe there should actually be more galaxies in the Star Wars universe (hehe).   Another thing, I think it's safe to assume that even if the entire saga takes place in one single galaxy, their researchers can observe other galaxies (I think we started doing that in the 1600s, and they are a lot more technologically advanced than we were back then). When Obi-wan is looking for Kamino (the rain planet with the cloners) the librarian says something like "If it's not in our records, it doesn't exist", so she must be convinced that the entire universe has been explored.    If the entire universe has been documented, why wouldn't they go to those other galaxies? The technology seems to be advanced enough to hop to another galaxy. Is there any canon material that suggest that traveling between galaxies is done? If not, is there a canon explanation why they don't?
How do I convert, NSDate to NSString so that only the year in @"yyyy" format is output to the string? How to use the Extended Euclidean Algorithm manually? I've only found a recursive algorithm of the extended Euclidean algorithm. I'd like to know how to use it by hand. Any idea? Rack Mount Servers - Build them or Buy them? This is the  for "Should I build coomputing hardware myself?" questions.   I have put together countless PCs, but never a large server. The geek in me says build it, but the realist in me says let the manufacturer handle it when there is a problem. Ignoring the time penalty involved with the initial assembly time of a built one, which is a better solution? Have you ever run into a problem with a home build server that would have been solved easier/quicker/cheaper by going with a manufacturer? Are there any features that manufacturers give that aren't easily attainable with a home built server? What should I do, as my submitted paper is still under review after 1 year? In naive set theory, I believe ∅ = {∅} = {{∅}} is correct, but just wanted to make sure that I understood this correctly.   ∅ is an empty set, so having an empty set as an element of a set that contains nothing else is pretty much the same thing as e.g. marking the number 2 as 2.000000, right? Doesn't the symbol ∅ intrinsically imply that this is an empty set which contains it self? How do I create a partially transparent flag? Right now I'm using echo &quot;Hello World&quot; &gt;&gt; file.txt  to append some text to a file but I also need to add text below a certain string let's say [option], is it possible with sed? EG: Input file Some text Random [option] Some stuff  Output file Some text Random [option] *inserted text* Some stuff CString to char* We are using the CString class throughout most of our code. However sometimes we need to convert to a char *. at the moment we have been doing this using variable.GetBuffer(0) and this seems to work ( this mainly happens when passing the Csting into a function where the function requires a char *). The function accepts this and we keep going.  However we have lately become worried about how this works, and whether there is a better way to do it.  The way i understand it to work is it passes a char pointer into the function that points at the first character in the CString and all works well.  I Guess we are just worried about memory leaks or any unforseen circumstances where this might not be a good idea. Let $\times$ = cross product and $a$ and $b$ have vector signs on them.  $a = [a_1, a_2, a_3]$  $b = [b_1, b_2, b_3]$  How would I prove this? Do I expand out cross product?  Any help is appreciated! Plot points:   I think the man was one-armed or had one damaged/withered arm. He is an artist when we meet him. He's picked up by aliens to represent earth in a galactic armada. Put in a ship with other aliens only there so a representative of their species can be said to be present - but not expected to actually contribute much to the coming fight. Fight is to protect against invaders from another galaxy. Somehow or other, their ship and crew become integral to winning the war. So I'm pretty sure there's at least 2, one for both X &amp; Y.   Much like other iterations of the other Pokemon games, are there other Legendaries? How many legendaries, and what are their names? A calculus problem with functions such that $f''(x) = g(x)$ and $g''(x) = f(x)$ What is a word that means "someone who pretends to be your friend but is actually your enemy?" What do you call someone who pretends to be your friend but is actually your enemy?  A friend suggested spy for me, but that does not nearly describe the word I need for an English project. The character is very good at manipulating how people see him. He's a good liar. And pretends to be your friend but actually is your enemy. Input 0  echo foo | xargs -L 1 -I '{}' echo '{}'   Output 0  foo   Input 1  echo foo | xargs -I '{}' -L 1 echo '{}'   Output 1  {} foo   Why changing the order of options of xargs changes the output?  Version: xargs (GNU findutils) 4.6.0 Brackets in if condition: why am I getting syntax errors without whitespace? Why does "touch -a" also set the ctime? Is it touch(1) from coreutils-8.4-37.el6.x86_64 or my brain which is broken?  $ touch abc $ LANG=C stat abc   File: `abc'   Size: 0               Blocks: 0          IO Block: 4096   regular empty file Device: fd04h/64772d    Inode: 10485773    Links: 1 Access: (0664/-rw-rw-r--)  Uid: (3060399/ nodakai)   Gid: (  418/   quant) Access: 2016-10-14 18:42:06.189751847 +0800 Modify: 2016-10-14 18:42:06.189751847 +0800 Change: 2016-10-14 18:42:06.189751847 +0800 $ touch -a abc $ LANG=C stat abc   File: `abc'   Size: 0               Blocks: 0          IO Block: 4096   regular empty file Device: fd04h/64772d    Inode: 10485773    Links: 1 Access: (0664/-rw-rw-r--)  Uid: (3060399/ nodakai)   Gid: (  418/   quant) Access: 2016-10-14 18:42:17.374235446 +0800 Modify: 2016-10-14 18:42:06.189751847 +0800 Change: 2016-10-14 18:42:17.374235446 +0800 $ touch --help | grep 'access time'   -a                     change only the access time   As you see, it was not only atime but also ctime which was updated by touch -a !?!?  The filesystem is ext4 over LVM if that makes any differences. Say a security has been trading at under $20.10, and there are limit orders selling at $20.10 and $20.21. Then Simon issues a limit order to buy at $20.21. According to , Simon would end up buying shares at $20.10.  Why does the exchange favor the buyer here?  I.e., why does the transaction execute at the seller's limit of $20.10 instead of the buyer's limit of $20.21?  (I.e., why don't Inara/River get to sell at $20.21 / above their limit, but Simon gets to buy at $20.10 / below his limit?)  Is the example flawed?  If it makes a difference, I'm mainly curious about NASDAQ and NYSE.  I tried Googling for specs (e.g. ), but couldn't find anything.  Only found that some  implementation executes the average of the buy/ask.  Just curious how the system works. geometry package - paperwidth and paperheight aren't accurate recognize this simple example:  \documentclass[]{article} \usepackage[paperwidth=612.0pt, paperheight=792.0pt]{geometry}  \begin{document} Hello World \end{document}   I compiled it with pdflatex. Additionally I wrote this small Java-Programm (using the iText library):  PdfReader reader = new PdfReader("example.pdf"); Rectangle psize = reader.getPageSize(1); System.out.println(psize.getHeight()); System.out.println(psize.getWidth());   The result:  Height: 789.041 Width: 609.714   Why is the paperwidth and paperheight different to the tex? I have a simple page that has some iframe sections (to display RSS links). How can I apply the same CSS format from the main page to the page displayed in the iframe? change environment of a running process How might it be possible to alter some variable in the env of an already running process, for example through /proc/PID/environ? That "file" is read-only.  Need to change or unset the DISPLAY variable of a long-running batch job without killing it.