What is the purpose of Refresh?
What is the point of Refresh if Dynamic has an UpdateInterval option?
How do I remove objects after building them, for example a fence that I placed without taking into account its orientation? I have right clicked on it like you would a structure but nothing happened. I have also tried Shift+Alt+Click and nothing has happened. I couldn't think of any other solutions as this is my first game. Screensaver with active desktop I am running XP and im looking for a screensaver that does not change the desktop. I.e when the screensaver is active, i want to be able to see my desktop as it is and any changes on the desktop to be visible. Only if i touch the mouse should the login prompt be displayed to inactive the screensave.   For example, i am usually either working on my desktop or laptop. On my desktop i have an applicaiotn running that is showing me stock quotes from the stock exchange. Everytime the screensaver activates i have to touch the mouse to bring the screen back.   What i want to be able to do, is to be working on my laptop and at any time look at the numbers on my desktop without the screensaver interfering. I want the screensaver to be active but its only job is to ask me to enter the password to unlock the screen. I should still be able to see teh stock prices as tehy are changing even while the screensaver is active.   Basicly is it possible to see the desktop while the screensaver is active?   Thanks Let $R$ be a commutative ring.  The nilradical $\text{nil}(R)$ is the set of all nilpotent elements, and it is the intersection of all the prime ideals of $R$.  Is the following true in the polynomial ring? $$\text{nil}(R[X])=(\text{nil}(R))[X]$$  Any polynomial in the right hand side has all its coefficients nilpotent in $R$, hence also in $R[X]$, and therefore it is nilpotent in $R[X]$ as the sum of nilpotent elements.  The other inclusion is not clear to me.  Is there a counterexample? What is an intuitive way of understanding Ostrogradsky instability? Is there a way of explaining why no differential equations in physics exceed order two without delving into Lagrangian and Hamiltonian mechanics - i.e. from Newtonian mechanics? Moreover, is there such an alternative proof, which focuses more on physical reasoning than abstract mathematics? Proper subspaces of $ R^n $ I'm trying to prove that proper subspaces of $ R^n $ are closed and have empty interiors.  To prove that they are closed I'm trying to use the fact that inverse images of closed sets are closed sets by continuous functions. So I'm trying to find a linear map such that a proper subspace of $ R^n $ is its Kernel but I don't know how to express it so that it would work on all dimensions.  Regarding the fact that they have empty interiors, I really don't know what to do.  Thanks in advance. Why are all known distributions unimodal? Why does light in a room not form constructive and destructive interference patterns? Zero dimensional points do not take up space, so then wouldn't everything in the universe be literally empty? Or is there something that I'm missing? Is there a visual web editor based on bootstrap? Bootstrap is a great framework, and I want know if there is a tool that gives you the possibility of dragging html components, re-sizing and moving them, changing colours, all while generating the bootstrap html code.  I don't want to use Dreamweaver because you need to go and add classes and IDs to the html, which could be a pain sometimes. How to define a command that takes more than 9 arguments Best way to run scheduled tasks Today we have built a console application for running the scheduled tasks for our ASP.NET website. But I think this approach is a bit error prone and difficult to maintain. How do you execute your scheduled task (in an windows/IIS/ASP.NET environment)  Update:   Examples of tasks:   Sending email from an email-queue in the database Removing outdated objects from the database Retrieving stats from Google AdWords and fill a table in the database. I'd like to make links to all files in a directory tree. Which means, create the same directory structure and make the links in them to the respective subdirectory in the original dir.  That could be done with   cp -R -s ../foo .   But - that needs an absolute path. So rather  cp -R -s `readlink -e ../foo` `readlink -e .`   I would like the resulting links to be relative.  How would I do that? I'm running macOS Catalina 10.15.4 on a 2018 MacBook Pro 15", which has the T2 chip (if anything else is relevant, let me know and I'll update the question.)  I'm a developer and I'm in the process of writing and debugging a C command-line utility that's supposed to take a few miliseconds to run and exit.  My internet connection went down while I was coding (WiFi was still connected, but my ISP was down), and afterwards I noticed that, after compiling the app, the first time I ran it, it took a few seconds to run rather than the expected fraction of a second.  I turned off WiFi (so there was no active network connection), compiled my app again, and ran it -- this time it ran as quick as I would expect.  Turn on WiFi, compile and run again, first run of the app takes longer than expected.  Maybe I'm paranoid, but it sure sounds like macOS is trying to ask Apple's servers for blessing to run my app. Is this the case, or could there be another explanation? If it's indeed the case, can anyone link to an article explaining what's going on under the hood?  UPDATE: as requested, here are timings for an average of three runs of the following command, under different conditions:  touch file.c &amp;&amp; make &amp;&amp; time ./file &amp;&amp; time ./file  The first measurement is the average time for running file for the first time after compilation (the third command in the chain). The second measurement is the average time for running file for the second time after compilation (the fourth command in the chain).  WiFi on, with internet: 347 ms/3 ms.  WiFi on, without internet: 5024 ms/3 ms.  All network connections offline: 24 ms/2 ms. UK PLAB Visa Refusal due to unexplained bank deposits I'm programming a presentation in LaTeX using the beamer class.  However, it defaults to 4:3 aspect ratio slides, while everything I use is 16:9. Is there an easy way to change this using a command or two? What is the idiom for "as anyone can see" or "clearly"? I keep wanting to say "the handwriting on the wall," but that's not correct. The place I'm trying to use it is, "Alice likes Bob, Carol likes Bob, Alice thinks Bob likes her, but Bob dates Carol, and so as anyone can see, Bob did not like Alice."  What is the appropriate idiom here? Show that the range of $p(z)e^{q(z)}$ for nonconstant polynomials $p$ and $q$ is all of $\mathbb{C}$. What is a word to describe inefficient communication? Example 1 - When reviewing résumés I don't want someone to use 1.5 pages to describe one job.   Example 2 - When a person uses excessive description to answer a simple question. “How to Ask Questions in Private Beta” is listed in every site’s help centre When I go to /help/asking on any Stack Exchange site (), there is a link to How to Ask Questions in Private Beta (). It starts with:  Welcome to the private beta for [site] The tone and quality of the questions asked during this temporary private beta are critically important. If the private beta doesn't produce enough high quality expert level questions, it won’t proceed onward to the public beta. To help ensure your site makes it out of private beta, here are some tips:  There is no disclaimer or similar that this is outdated. This may lead to unnecessary confusion. I understand that that it is useful to keep this page in public pages for documentary purposes, as it may be linked in early Meta discussions, but it should:  not be listed in the table of contents (/help/asking) have a disclaimer semi filled circle