I have yet to play RfS yet, mostly because I'm concerned about difficulties.. how do I know if that door's lockpicking DC of 5 is too much or too little? Should I use a passive or active opposition?  I'm very confused as to how I should set DCs in a microsystem like this  Edit: I don't think this is a duplicate because I'm talking about passive opposition as well, not just "how many dice do I roll", but rather "Is a pre-established X DC too much" too
I'd like to run a game of , but I'm not sure how many dice I roll when the characters face various challenges. I'm under the impression that it's supposed to be the same number of dice the character uses, but that seems to make impossible tasks far too easy to perform. Is there a general rule saying how many dice the GM rolls against a character's attempt at a given task?  Should the GM's dice equal the character's dice, or should the GM's dice vary depending on the task's difficulty?
I created a new profile for gnome-terminal and I can switch between &quot;Implicit&quot; profile and the new created profile as you can see in the below image:  Now I wonder how can I switch between profiles using a command-line/script or maybe using a shortcut for this.  Note: Solutions like: gnome-terminal --tab-with-profile=Implicit &amp;&amp; exit   are excluded because I prefer not to close and open another terminal or get another terminal window in this process of changing the profile. 'No Such File or Directory" Error When Working with Shared File I'm attempting to open a file on a Linux computer through file sharing. The file is stored on a Macbook Pro and both computers are running Blender 2.77. However, when I try to open the file on the Linux computer, I get an error of, "No Such File or Directory." I don't think this is a file permissions error as my permissions settings are set so that "Everyone" can read and write my file. What can I do to solve this? Does $1^{\infty}=e$ or $1^{\infty}=1$? Today I upgraded to the Creators Update by running setup from the ISO mounted locally. When I got back to my computer I opened Task Manager and saw my memory usage was a lot higher than it was previously (it's now almost 6GB memory usage at idle after logging in instead of 2-3GB with the previous Windows build) - the processes tab revealed that there were upwards of 60 different instances of svchost.exe running. This 6GB figure is just for process memory - not including memory used for caching or "standby".  I ran tasklist /svc to get a listing of which services were in which processes and it lists almost every svchost.exe instance as only having one running service contained within (with the exception of a handful of instances that are running a few system services).  Here's  my output:  Image Name                     PID Services ========================= ======== ============================================ System Idle Process              0 N/A System                           4 N/A smss.exe                       440 N/A csrss.exe                      612 N/A wininit.exe                    700 N/A csrss.exe                      708 N/A services.exe                   776 N/A lsass.exe                      784 KeyIso, Netlogon, SamSs, VaultSvc svchost.exe                    888 PlugPlay svchost.exe                    908 BrokerInfrastructure, DcomLaunch, Power,                                    SystemEventsBroker fontdrvhost.exe                936 N/A svchost.exe                   1000 RpcEptMapper, RpcSs svchost.exe                    104 LSM winlogon.exe                   544 N/A fontdrvhost.exe                420 N/A svchost.exe                   1072 DeviceInstall dwm.exe                       1136 N/A svchost.exe                   1164 BFE, CoreMessagingRegistrar, MpsSvc svchost.exe                   1424 lmhosts svchost.exe                   1432 W32Time svchost.exe                   1440 nsi svchost.exe                   1448 wudfsvc svchost.exe                   1528 hidserv svchost.exe                   1628 Dhcp svchost.exe                   1716 Dnscache svchost.exe                   1748 EventLog WUDFHost.exe                  1792 N/A svchost.exe                   1908 TimeBrokerSvc svchost.exe                   1952 NlaSvc NVDisplay.Container.exe       1968 NVDisplay.ContainerLocalSystem svchost.exe                   1324 Themes svchost.exe                   1596 ProfSvc svchost.exe                   1944 EventSystem svchost.exe                   1052 netprofm svchost.exe                   2116 StateRepository svchost.exe                   2256 SENS svchost.exe                   2296 AudioEndpointBuilder svchost.exe                   2304 FontCache (etc)...   I know you can configure individual services to run in their own instance of svc with the sc config &lt;serviceName&gt; type= own command, but to my knowledge I've never run this command.  I took a quick look at Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services and it looks like the Type key values for most of these services is missing the flag bit at 0x10 which controls if a service runs in its own svchost.exe instance or not. I wonder what could have effected this change.  Has anyone else observed this behaviour before or after installing Windows 10 Creators Update? If it is a default configuration change, will it have any implications on system performance or stability?  I suspect it will increase system stability because if a service crashes it won't bring down other services - but this comes at a massive cost of RAM - but I've never experienced a service crashing on me - or at least ever noticed it (instead the worst problem I've had is with wuauserv consuming 100% CPU for hours on end - and that's not a problem process isolation will solve).  (I just noticed: they finally added an address bar to the Registry Editor!) In C++, sizeof('a') == sizeof(char) == 1. This makes intuitive sense, since 'a' is a character literal, and sizeof(char) == 1 as defined by the standard.  In C however, sizeof('a') == sizeof(int). That is, it appears that C character literals are actually integers. Does anyone know why? I can find plenty of mentions of this C quirk but no explanation for why it exists. Is the electromagnetic spectrum discrete? I'm just starting to learn physics and I have a question (that is probably stupid.)  I learned that energy levels that the bound electron can have are discrete. I also learned that when an electron transitions from one level to another, a photon with a specific wavelength (energy) is created and released into the wild.  My question is this: are there holes in the electromagnetic spectrum, values of frequency that the created photon can't possibly have? How are one-time pads distributed? It seems that OTP encryption is unbreakable. I have read some articles (Wikipedia, Blogpost, etc.), but I could not find any information about how they are used.  If I wanted to create a messenger service, how would I distribute the OTP keys? Both the sender and the receiver need this key before the message is sent, right?   And how do I make sure no one else gets these keys? Setting up a bicycle for someone with restricted knee articulation My father, now in his 70's, had a left knee replacement several years ago. He has limited movement in that knee - probably about 85 degrees on a good day. His knee can extend fully, but cannot bend as much as it should. As a result, he cannot pedal a bike he cannot get his left leg over the top of the pedal stroke.   He is desperate to get back onto a bike, he knows he won't be ripping up the road and winning races like the old days, but wants the freedom to go for a slow easy rides.    Does anyone have suggestions as to a solution to the problem. We don't mind spending money if we know the solution will work, but he can't afford to throw big money at wild ideas that may or may not work. If we find a solution, a new bike is likely.   We have access several mountain bikes in a range of sizes to trail ideas, and we have all the tools and skills to build bikes up from parts and rearrange things as needed.    EDIT: Thanks everyone - all great suggestions. What am am going to do is got tto the LBS and get hold of a cheap set of short cranks for around $30- probably from a kids bike, in the 120-150 size range, and see if he can ride that. Depending how he goes, I'll try a standard right crank and a short left crank. If all else fails, we will go for the Power Cranks   UPDATE: In case anyone else has similar problems. Got some 152mm cranks for $30. Set an old  mountain bike up with the seat as far back as possible. The old man is able to ride reasonably comfortably, now has a smile from ear to ear - any suggestions how to remove it - doesn't fit with the grumpy old man image :)   Has got me wondering how many people with minor knee problems would benefit from short(er) cranks....... What is the Convergence Radius and Domain of $\sum\limits_{n=0}^\infty \frac{1}{2^{n}} z^{2^n}$? So I need to find the Convergence Radius and Convergence Domain of the complex power series: $\sum\limits_{n=0}^\infty \frac{1}{2^{n}} z^{2^n}$  I've tried looking at the individual parts of the series and rewriting it somehow but couldn't find a way.  It can probably be solved, after a step or two, by the formula $R=\frac{1}{\displaystyle\limsup_{n\rightarrow \infty}\sqrt[n]{|a_n|}}$ .  Thanks. How did Voldemort get his body back? In the first book it seems that Voldemort has been reduced to nothing but a ghostly wisp. But IIRC by the fourth book he somehow has a body that is carried around by Wormtail. In the first book he needs someone to inhabit, by the fourth, he can't really move around, but he does have a body back which can hold a wand.  How did this transition happen? Where to declare environment variables? What are correct places for:   Global environment variables meant to affect all users? User-specific environment variables? Transforming geometry PostGIS column with unknown geometry type? I run PostgreSQL 9.1 and PostGIS 2.0. I have a table that contains one geometry column.   But that column contains point, polygons lines, etc.   So I set it like so,   ALTER TABLE jake ADD COLUMN jake_geom geometry;  and then I setted some constraints to make it geometry enabled, but not limited on a single geometry type  ALTER TABLE jake   ADD CONSTRAINT enforce_dims_geom CHECK (st_ndims(jake_geom) = 2);  ALTER TABLE jake   ADD CONSTRAINT enforce_srid_geom CHECK (st_srid(jake_geom) = 900913);   Now, I want to reproject the geometries in that column to 4326.   According to , for the transform to work, I need to set a geometry type.  (the TYPE geometry(MultiPolygon,2163) part)  but my column does not have certain geometry type. How do I proceed?  Or I can simply do  ALTER COLUMN geom USING ST_Transform(geom,2163);  avoiding to set a type? I have Ubuntu on my MacBook 2007 with a Spanish keyboard, on MacOS the @-sign was typed using Alt (Option) + 2, but on Ubuntu I have no idea. I have to copy and paste it every time. How do I type an at sign? How do you remove Nvidia's proprietary drivers? I always seem to have grief with Nvidia drivers and have often had to re-install Ubuntu: is there a better way to remove them? When I first installed the drivers, the display came up on 640 by 480.  I managed to set 2 screens to 1024 by 780 which was usable, but then Ubuntu recommended installing proprietary drivers (nvidia-current-updates 295.40-ubuntu1). After doing this and re-booting it shows LAPTOP and offers only 640 by 480 on a single screen.   Is there any way to revert to the original driver? Is there any way to find out if the new drivers work before installing them? - For years I have been hoping that it would be all fixed in the latest release… I always seem to fall for this! I have a huge text file (~1GB) and sadly the text editor I use won't read such a large file.  However, if I can just split it into two or three parts I'll be fine, so, as an exercise I wanted to write a program in python to do it.    What I think I want the program to do is to find the size of a file, divide that number into parts, and for each part, read up to that point in chunks, writing to a filename.nnn output file, then read up-to the next line-break and write that, then close the output file, etc.  Obviously the last output file just copies to the end of the input file.  Can you help me with the key filesystem related parts: filesize, reading and writing in chunks and reading to a line-break?  I'll be writing this code test-first, so there's no need to give me a complete answer, unless its a one-liner ;-) For an ecology project, my lab group added vinegar to 4 tanks containing equal volumes of pond water, 1 control with no elodea (an aquatic plant) and 3 treatments with the same amount of elodea in each. The purpose of adding the vinegar was to reduce the pH. The hypothesis was that the tanks with elodea would go back to their normal pH quicker. This was indeed the case. We measured the pH of each tank daily for about two weeks. All the tanks eventually returned to their natural pH, but the length of time that this took was much shorter for the tanks with elodea.  When we told our professor about our experimental design, he said that there exists no statistical test that can be performed on the data to compare the control to the treatment. That because there was no replicate for the control (we only used one control tank) we cannot calculate variance and so we can't compare the sample means of the control and the treatment. So my question is, is this true? I definitely understand what he means. For example, if you took the height of one man and one woman, you can't draw conclusions about their respective populations. But we did 3 treatments, and the variance was small. It seems reasonable to assume that the variance would be similar in the control?  Update:  Thank you for the excellent answer. We got more water and elodea from the wetland and decided we would run the experiment again with smaller tanks but this time with 5 controls and 5 treatments. We were going to combine this with our original data but the starting pH of the tanks was different enough that it doesn't seem valid to consider the new experiment to be sampled from the same population as the original experiment.  We considered adding different amounts of elodea and trying to correlate speed of pH remediation (measured as time elapsed until pH returned to its original value) with amount of elodea, but we decided that wasn't necessary. Our objective is only to show that the elodea makes a positive difference, not to construct some kind of predictive model for exactly how the pH responds to differing amounts of elodea. It would be interesting to determine the optimal amount of elodea, but that's probably just the maximum amount that can survive. Trying to fit a regression curve to the data wouldn't be especially illuminating because of the various complicated changes that occur to the community when adding a large amount. The elodea dies, decomposes, new organisms start to dominate, and so on. Can we have discussions? Guys, I just wonder if people are allowed to have civilized discussion (on any IT topic) on this forum without actually being accused of starting a row. I'm asking this question for a reason that few days I've asked few questions referring to VM, JIT etc. and compared them to C++ way and despite the fact that I've explained myself that I'm not starting any agro with anyone, that I'm really just genuinely curious, my post was first closed and then removed. I'm asking: What's wrong with asking nonstandard questions which sometimes my be quite difficult to answer? Thanks is it problematic to cluster across two datacenters w/aag? In general is it problematic to cluster across two datacenters that are up to 15-miles apart?  For this one particular project the approach is the following?   2-Node Failover Cluster across two datacenters, one node per datacenter local SAN disks, no shared disks 'Node and FileShare Majority' at third location on-campus employ AAG, failover will be manual; asynchronous mode   Is anyone implementing something like this with success??!?  Thanks so much for the help!! Sometimes when reading through user comments on a particular answer, some usernames that appear like user[digit] e.g user12345 are not links. Is this a known behaviour or any other thing I am not aware of? A while back I read about the super Kamiokande detector detected a large neutrino flux and then several hours later a supernova was seen. Anyone know of this with sources? I don't recall the source at the moment.