How can I completely disable the scroll wheel on my mouse on a Windows 7 system? This would be system wide not just for a single application.
In Windows Vista, I have tried to set the setting 'the following number of lines at a time' to zero. I assumed my scroll wheel would not scroll anymore. But it still works.  I'm trying to disable the wheel because my RSI complaints worsen when using the scroll wheel often.  Does anyone have an idea on how to achieve this?
Content Assist for JSF2 + CDI (weld) beans + Eclipse Helios Sum of two squares modulo p I have heard somewhere that for all primes $p$, for all $k$, there exist $x, y$ s.t. $x^2 + y^2\equiv k \pmod{p}$? I recall that the proof is very elementary, but I can't remember such a proof. How would one prove this? One way is to use Cauchy-Davenport, but I don't think that this is the simplest solution. Abandoned colony of military engineer corps How to insert text before the first line of a file? How to effectively use the man pages? I am looking forward to mastering linux. I have been repeatedly told to refer to man pages when you are in doubt.   Though I am very comfortable with the commandline, I find it very difficult to quickly and efficiently use man to find help with commands. Hence I end up googling up how to get things done. It is even more painful when the system I am using does not have internet access and I have to walk back to my office to get help from the internet.  How does one master man pages? What are the most common tricks that can be used to quickly get whatever you want from the man page? What are the most commonly used keyboard shortcuts? Is it normal for DC wall adapter power supplies to provide voltages above the nominal ones? When I measure a 9V DC wall adapter power supply with a multimeter it shows 11.8V. When connected to my board this voltage lowers to 10V. Is this normal? Should I be afraid of toasting my  supplied board when using this adapter?  Edit: This regulator accepts up to 12V inputs. So that will be no problem. A second "9V" adapter yields 15V to the multimeter. Will this one burn my circuit? Possible Duplicate:        My Windows 7 is 64-bit, and I thought that means it can use the full 4GB of RAM installed on the computer.  But I just saw this on my computer's properties: (So only 3.25GB is usable??) Prove $f(S \cup T) = f(S) \cup f(T)$ Although we can create or update fieldsets using salesforce UI but Is there any way to insert or update FieldSets using apex code (using metadata or API calls) ? What should be the intuition when working with compactness? I have a question that may be regarded by many as duplicate since there's a  one at MathOverflow. The point is that I think I'm not really getting the idea on compactness. I mean, in $\mathbb{R}^n$ the compact sets are those that are closed and bounded, however the guy who answered this question and had his answer accepted says that compactness is some analogue of finiteness. That's the first problem: In my intuitive view of finiteness, only boundedness would suffice to say that a certain subset of $\mathbb{R}^n$ is in some sense &quot;finite&quot;. On the other hand there's the other definition of compactness (in terms of covers) which is the one I really need to work with and I cannot see how that definition implies this intuition on finiteness. Also, I feel it's pretty strange the covers people use when they want to deal with compact sets. To prove a set is compact I know they must show that for every open cover there's a finite subcover; the problem is that I can't see intuitively how one could show this for every cover. Also when trying to disprove compactness the books I've read start presenting strange covers that I would have never thought about. I think my real problem is that I didn't yet get the intuition on compactness. So, what intuition should we have about compact sets in general and how should we really put this definition to use? Can someone provide some reference that shows how to understand the process of proving (and disproving) compactness? Combining two expressions (Expression>) I have two expressions of type Expression&lt;Func&lt;T, bool&gt;&gt; and I want to take to OR, AND or NOT of these and get a new expression of the same type  Expression&lt;Func&lt;T, bool&gt;&gt; expr1; Expression&lt;Func&lt;T, bool&gt;&gt; expr2;  ...  //how to do this (the code below will obviously not work) Expression&lt;Func&lt;T, bool&gt;&gt; andExpression = expr AND expr2 Comparing values between two tables How to compare values between two different tables?  I have two tables as shown below:   Table 'A' sql_id       OPERATION       OPTIONS  63kf3an2j0pk SELECT STATEMENT 63kf3an2j0pkc TABLE ACCESS FULL  Table 'B' sql_id       OPERATION     OPTIONS 63kf3an2j0pk SELECT STATEMENT 63kf3an2j0pkc INDEX UNIQUE SCAN IDX_THU   I need to compare the values in Table 'A' and Table 'B' for the given sql_id. My question is how to find the changed values.  In this case in Table 'A' the second line is TABLE ACCESS FULL. Table 'B' the the second line is INDEX UNIQUE SCAN IDX_THU. So here the value has changed. How can I find that using query? Something like when matched then "matched" when not changed "value changed".  I'm looking for output something like below:     sql_id           comaparion outcome dmqb1hzrf5uxh   No change in the plan 74anujtt8zw4h   plan changed   Can I do something like this?  select sql_id,case when ( select sql_id,OPERATION,options  from  a where sql_id='dmqb1hzrf5uxh' minus  select sql_id,OPERATION,options from  b where sql_id='dmqb1hzrf5uxh') is null then 'matched'  else 'changed' end as status;   I am comparing the explain plans before and after patch. The table 'A' is before patch result of the sqlid and table 'B' is after patch result. Now I want to compare the plans in both the tables. I want to compare the plan by using a query. A word/phrase meaning the "house where I was born"? Unparsed HTML shows on search result page Who was/were the first Jedi? At lunch, my coworkers and I were discussing The Force Awakens, and started questioning Chewbacca's age.  A quick check of  and it says he is possibly about 230 years old as of Episode VII.  Following the  link on that page, Wookieepedia claims that they live to be 400 years old.  Do we know from canon what the average life expectancy of a Wookiee is? Book: Nanobot apocalypse on Earth, originally used for weather control A few years ago I read an excellent sf book about nanobots that went out of control. In the book they were used for weather control, when they went amok the scientists threw in yet another bunch of nanites and so on, until Earth became uninhabitable, teeming with nanites, I remember the weather also became cold. The planet still could be visited but when they lost cloaking the nanites would attack.   Also, some humans in the book merged with nanites, they could behave benevolently but I forgot the plot too. I only remember fragments of this book, I would like to read it again in English. (loaned a long time ago from a library here in Sweden but they closed the library).   I only know that it was written by an Anglo-American contemporary SF writer, probably 30-55 y.o. Why is $\sqrt{-x}*\sqrt{-x}=-x?$ Choosing equipment options at character creation So if I'm correct, when you chose your starter gear and wealth you can either choose to roll some dice depending on your class and buy everything from that or you can choose the starter gear from your class and add the background items (including some gold). Here are my 2 questions:   If I choose the gear from my class, do I have to take all the equipment from only one of the (a) or (b) choices, or can I freely mix-and-match choices from the two sets? Can you spend the extra gold you get from your background on extra equipment (e.g. some soap and some fishing equipment) or do you have to start with that gold in its pouch?   The reason I ask is that I have recently created a level 1 wood elf druid and I mixed-and-matched the gear from the class, so that I chose a shortbow as a "(b) simple weapon" for the first point and a "(a) Scimitar" at the second point. My DM wasn't so happy about this, as he can't understand why I'm mixing (a) and (b).  He also wasn't so happy with me spending my 10gp from my outlander background. I decided that my druid wouldn't lay so much worth in 10gp compared to a bunch of stuff I got for that (e.g. some soap and some fishing equipment and some other useful things) and he seems to think that I'm supposed to just start with the gold instead. Routing in home LAN I'm trying to understand some basic concepts of networking. I have following home LAN:     Is it right (like above) to have 2 NIC's each one having 2 different gateways on one station? There PC2 have 2 NICs - the first's one gateway is 192.168.0.1 the second's 192.168.1.1? Initially (just after system startup) the ip table is like that:  192.168.0.0    255.255.255.0         On-link      192.168.0.11    276 192.168.0.11   255.255.255.255       On-link      192.168.0.11    276 192.168.0.255  255.255.255.255       On-link      192.168.0.11    276    and when i run netcat:  nc -zv -s 192.168.0.11 192.168.0.11 80    to test if port 80 is open it works - the port 80 is indeed open. But when i remove the 192.168.0.11 route i got "TIMEOUT" on nc test. Shouldn't it pick 192.168.0.0 route and work? Moreover when i add the route manually:   route add 192.168.0.11 mask 255.255.255.255 0.0.0.0   it still doesn't work! I can't change the metric to desired value. When i run for eg. route change 192.168.0.11 mask 255.255.255.255 192.168.0.11 metric 500 the result metric is't 500 but 520! (no matter if auto-metric is enabled or not)? Is there any connection between -s flag (local source address) in netcat and routing table's Interface column?