I’m wondering what the most efficient mine setup in 1.14.4? By this, I do not mean strip mining techniques and so forth, but actually how long you should make a strip mine before you move on to the next one, how big you should make the mining area, etc. More of a structure setup recommendation rather than the overall mining technique.
When I'm not exploring fresh caves or lands in minecraft, I'm busy trying to find deposits of diamond, gold and iron deep in the earth. So far I've just been digging around just above bedrock on a whim to look for these rare minerals but I've started thinking that I should be taking a more controlled, efficient approach to mining.  What is the optimal mining strategy that yields the most rare minerals while minimizing blocks removed and time spent digging and traveling?  Edit: The existing answers are great for mining, but no one has addressed travel time to and from the mine which is usually ~60 blocks downward and incredibly tedious. Solutions?
How can I execute `date` inside of a cron tab job? I want to create a log file for a cron script that has the current hour in the log file name. This is the command I tried to use:  0 * * * * echo hello &gt;&gt; ~/cron-logs/hourly/test`date "+%d"`.log   Unfortunately I get this message when that runs:  /bin/sh: -c: line 0: unexpected EOF while looking for matching ``' /bin/sh: -c: line 1: syntax error: unexpected end of file   I have tried escaping the date part in various ways, but without much luck. Is it possible to make this happen in-line in a crontab file or do I need to create a shell script to do this? In a ring, I was trying to prove that for all $a$, $a0 = 0$.  But I found that this depended on a lemma, that is, for all $a$ and $b$, $a(-b) = -ab = (-a)b$.  I am wondering how to prove these directly from the definition of a ring.  Many thanks! How to redirect users to custom lostpassword page? Excel function that evaluates a string as if it were a formula? Suppose I have a text string like "11+5" or even "=11+5" stored in a cell. Is there a function in Excel that will allow me to actually evaluate that string as if it were a formula?  This would be helpful for another project where I would like to be able to write 'dynamic' formulas in Excel. How to get keycodes for xmodmap? I'm trying to use xmodmap to remap Alt / Super keys on Dell L100 keyboard, and have trouble getting the keycodes.  For instance, using xev doesn't give me keycode for Alt   FocusOut event, serial 36, synthetic NO, window 0x4a00001,     mode NotifyGrab, detail NotifyAncestor  FocusIn event, serial 36, synthetic NO, window 0x4a00001,     mode NotifyUngrab, detail NotifyAncestor  KeymapNotify event, serial 36, synthetic NO, window 0x0,     keys:  122 0   0   0   0   0   0   0   0   0   0   0   0   0   0   0               0   0   0   0   0   0   0   0   0   0   0   0   0   0   0   0      For Right Super key, xev and showkey give different keycodes -- 134 and 126 respectively.  What's going on with these keycodes?  I tried getting keycodes from showkey -k, and using xmodmap file below, but that gave a weird map which remapped b key:  clear Mod1 clear Control keycode 125 = Meta_L keycode 126 = Meta_R keycode 58 = Control_L keycode 56 = Control_L keycode 100 = Control_R add Control = Control_L Control_R add Mod1 = Meta_L Meta_R I often cook fries in a skillet. I put about 1/4 cup vegetable oil into a large skillet and heat on high, then I toss in some frozen fries.   As soon as I toss them in there is an explosion of grease that makes a huge mess. After it simmers down though, I can cook the fries without spilling anymore grease.  Is there anyway to avoid the initial uproar? How can infinite information be theoretically encoded or stored in a single qubit? I've just gotten started with Nielsen and Chuang's text, and I'm a little stuck. They mention that theoretically, it would be possible to store an infinite amount of information in the state of a single qubit. I'm not sure I completely comprehend this.    Here's how I rationalized it: You take all the information you want to store, put it in binary form, and make it the real component of $\alpha $ or $\beta$ (the coefficients of the computational basis states).   Now I'm not sure if I've understood it right, but since it's still fuzzy in my head it would be great to get some kind of ELI5 explanation or possibly a more detailed picture of how this would, even theoretically, be possible.    Apologies if the question doesn't meet standards. I'm new to the forum and would be open to feedback regarding asking questions or answering them. Longtable: page breaks within row possible? I am editing a longtable. Some of my cells contain a lot of text. Page breaks seem to happen only where table rows end/begin. I'd like, however, for the rows to span pages; it's fine with me if, for example, the first few lines of a row are at the end of one page and the rest of the row's lines are on the next page. I've been reading a lot about the oxidative dissimilation etc, and often I see different sources use NADH and NADH2 in the same reactions. One source uses NADH and another uses NADH2 in the exact same way. Is there a difference or is it just a different name for the same substance? Compare given date with today How to tell a lambda function to capture a copy instead of a reference in C#? I've been learning C#, and I'm trying to understand lambdas.  In this sample below, it prints out 10 ten times.  class Program {     delegate void Action();     static void Main(string[] args)     {         List&lt;Action&gt; actions = new List&lt;Action&gt;();          for (int i = 0; i &lt; 10; ++i )             actions.Add(()=&gt;Console.WriteLine(i));          foreach (Action a in actions)             a();     } }   Obviously, the generated class behind the lambda is storing a reference or pointer to the int i variable, and is assigning a new value to the same reference every time the loop iterates.  Is there a way to force the lamda to grab a copy instead, like the C++0x syntax  [&amp;](){ ... } // Capture by reference   vs.  [=](){ ... } // Capture copies Azimuth and Distance, NumericalDigitize, Numerical Vertex Edit, XY tools and other plugins are not on QGIS Plugin Manager version 2.0.1 Will these plugins no longer be available in QGIS 2.0.1? input() error - NameError: name '...' is not defined Why has my database connection failed? Is it possible to disable X at boot time? I'm setting up a server so it would be nice if it wouldn't load the graphical interface every time I boot. Is there an issue tracker for already reported Mathematica bugs? Word for "reading carefully" Sometimes we read books rather quickly and don't give them much (or any) thought, so the action 'reading' does not necessarily imply that we have given enough thoughts to any book we read.   Is there a word that describes reading a book with great care; usually but necessarily slowly over a long period of time. Beamer: TOC only once before sections with subsections My presentation consist of multiple sections. Some sections consist of subsection and some not. I want beamer to display the TOC before every subsection and before every section which consists of no other subsection.  Currently, i write in the preamble:  \AtBeginSection[] {     \begin{frame}&lt;beamer&gt;     \frametitle{Inhalt} %     \tableofcontents[currentsection]       \end{frame} }  \AtBeginSubsection[] {     \begin{frame}&lt;beamer&gt;     \frametitle{Inhalt} %     \tableofcontents[currentsubsection]       \end{frame} }   As a result, if a section consist of subsecitons beamer displays the TOC twice before the first subsection in a section, one time for the section and one time for the subsection. That is ugly in my opinion. What can i do? Recursively delete empty directories in Windows I have a directory on my Windows 7 machine that has hundreds if not thousands of sub-directories.  Some of them have files, some do not.  I want to delete all the empty directories.  Looking at the del and rmdir DOS command, it does not look like you can recursively do this without deleting all the files.  Is there a way to do this from the command line? Which IP address do I use to access my server? I'm running a Samba server on my MacBook and I've also set up port forwarding to said server from my router.  My public IP is 106.51.x.x (according to google and a few other services) and my Mac's local IP is 192.168.x.x, but when I head to my router's configuration page, it says my external IP is 10.242.x.x.  This is what I don't understand, when connected to my home WiFi, using the 10.242.x.x address works just fine. But if I try to access the same over 4G, the connection times out.  As for the public address, neither WiFi nor 4G works.  Is there some setting on my Mac (I'm running MacOS Sierra) that I must alter to make it visible to the public?