The rustling grass is driving me crazy - does it actually mean something? I've tried walking towards it, I mean I have actually walked in circles for five minutes in a Home Depot parking lot and in my neighborhood, but nothing ever comes of it.  I've tried tapping the screen where the grass is rustling - nothing.  Sometimes I see little pieces of green, other times it is substantially bigger. But never a pay off.  What am I missing?
Occasionally, you can see little tufts of leaves blowing in spots on the map      Do these mean anything?
Making a 3D map with shapefiles, lidar and aerial image data I want to try to make a simple 3D map for a small area (10 square miles) with some housing, some roads and some vegetation on it. My geodata is as follows:    shapes with houses/roads/vegetation.  LIDAR point cloud data over the area (can easily be built to a dem). georeferenced aerial image.   Any idea where to start to bundle these geodata together and make a neat looking 3D map? When should a Test Case be marked as "No Apply"? Best practice when analysing pre-post treatment-control designs Imagine the following common design:   100 participants are randomly allocated to either a treatment or a control group the dependent variable is numeric and measured pre- and post- treatment   Three obvious options for analysing such data are:   Test the group by time interaction effect in mixed ANOVA Do an ANCOVA with condition as the IV and the pre- measure as the covariate and post measure as the DV Do a t-test with condition as the IV and pre-post change scores as the DV   Question:    What is the best way to analyse such data?  Are there reasons to prefer one approach over another? For what values of $\alpha$, does this integral converge? For what values of $\alpha&gt;0$ this integral converges $$\int_0^{\infty} \frac {\sin x}{x^{\alpha}}dx $$ How to input Traditional Chinese in pdfLaTeX I'm trying to write Chinese using pdfLaTeX. But currently I can only write Simplified Chinese Characters, If I try writing Traditional Chinese then the text wont show up.  This is what I have:  \documentclass{article} \usepackage{CJKutf8} \begin{document} \begin{CJK*}{UTF8}{gbsn} 文章内容。 \clearpage\end{CJK*} \end{document}   What would I need to do to get Traditional Chinese? Gparted: move extended partition on the left I have some free disk space on the left of my ubuntu (sda5)  What is best solution to extend sda5 ?  I can    copy sda3 or sda5 with dd to bigger disk. delete sda3,5,swap create sda3,5,swap dd original partition.   Not sure how to do it properly.  May be there is a simpler solution. My little brother is just getting into programming, and for his Science Fair project, he's doing a simulation of a flock of birds in the sky. He's gotten most of his code written, and it works nicely, but the birds need to move every moment.  Tkinter, however, hogs the time for its own event loop, and so his code won't run. Doing root.mainloop() runs, runs, and keeps running, and the only thing it runs is the event handlers.  Is there a way to have his code run alongside the mainloop (without multithreading, it's confusing and this should be kept simple), and if so, what is it?  Right now, he came up with an ugly hack, tying his move() function to &lt;b1-motion&gt;, so that as long as he holds the button down and wiggles the mouse, it works. But there's got to be a better way. How can I download free apps without registering an Apple ID? "This Apple ID has not been yet been used before in the iTunes Store. Tap review to sign in, then review your account information."   I keep getting this message when I try to install free apps from App Store. I don't want to give my account info until I actually purchase something.   Can I not download free apps until I provide my account information? My email verification is complete. I'm using an iPhone 3GS logged in to my iTunes account. On the Bash on Ubuntu on Windows app, I only have   root@localhost:~# ls -a     .bash_history  .bashrc  .profile   How do I access all of the Windows folders like Documents, Downloads, etc.? Prove or disprove the uniform continuity of $f: \mathbb{C} \to \mathbb{C}, z \mapsto f(z)=\frac{z^2}{1+|z|}$ I tried using the definition of the continuity to try and find a $\delta$ but I got stuck here $$ |f(w) - f(z)| = |\frac{w^2 \cdot (1+|z|) - z^2 \cdot (1+|w|)}{(1+|w|)\cdot(1+|z|)}|$$ What can I do to find a suitable $\delta$ that would end my proof? How do you format Facebook Wall posts? There doesn't appear to be any formatting links when I do a Facebook Wall post.  Is there any way to do formatting like HTML, markup, etc? How can super massive black holes have a lower density than water? I heard on a podcast recently that the  at the centre of some galaxies could have densities less than water, so in theory, they could float on the substance they were gobbling up... can someone explain how something with such mass could float?  Please see the below link for the podcast in question: Activity Monitor in Mavericks "Show Memory Usage" dock icon gone? I just purchased a new MacBook Pro with Mavericks installed and noticed that Activity Monitor doesn't have the "Show Memory Usage" dock icon option anymore.  I really liked this option since I used it to prevent disk swapping by closing applications when I had too many open.  What gives? How do I prove if a set of operations is complete? For example $\{\land, \lnot\}$ apparently forms a functionally complete set as it can form any logical expression.  But I don't really know what this means or how you show it. Do we just show that some set is complete and then in the future if we have a new set, show that we can replicate the known operations with the new ones?  Do you have to find these strategically or is there a systematic way? My Visual Studio (2008) Editor has stopped to underline Errors (this nifty wavy red lines). I can't really tell when, but it can be related to the installation of .Net Framework 3.5 SP 1 or the MVC Beta (which I guess is unlikely). Furthermore have I installed and uninstalled both CodeRush and Resharper for evaluation purposes (decided not to keep either one of them).  Does anyone know the problem and how to restore this functionality again? If $f,g : [a,b] \to (0,\infty)$ are continuous functions, prove that there exists $c \in (a,b)$ such that: $$\int_{a}^{c} f(x) \ \mathrm dx = \int_{c}^{b} g(x) \ \mathrm dx$$ How to render a background image in 2.8? I have to create a report on some student completions. The students each belong to one client. Here are the tables (simplified for this question).  CREATE TABLE  `clients` (   `clientId` int(10) unsigned NOT NULL auto_increment,   `clientName` varchar(100) NOT NULL default '',   `courseNames` varchar(255) NOT NULL default '' )   The courseNames field holds a comma-delimited string of course names, eg "AB01,AB02,AB03"  CREATE TABLE  `clientenrols` (   `clientEnrolId` int(10) unsigned NOT NULL auto_increment,   `studentId` int(10) unsigned NOT NULL default '0',   `courseId` tinyint(3) unsigned NOT NULL default '0' )   The courseId field here is the index of the course name in the clients.courseNames field. So, if the client's courseNames are "AB01,AB02,AB03", and the courseId of the enrolment is 2, then the student is in AB03.  Is there a way that I can do a single select on these tables that includes the course name? Keep in mind that there will be students from different clients (and hence have different course names, not all of which are sequential,eg: "NW01,NW03")  Basically, if I could split that field and return a single element from the resulting array, that would be what I'm looking for. Here's what I mean in magical pseudocode:  SELECT e.`studentId`, SPLIT(",", c.`courseNames`)[e.`courseId`] FROM ... Is a company e.g. Pfizer, singular or plural? Here is from an article from the  magazine:     One drug he talks about is an antidepressant called reboxetine (branded as Edronax by   its makers, Pfizer) that he used to prescribe to his patients.   Pfizer is a drug company. It is a singular noun. Why is it described as its makers, which is plural? View linked Excel 'Windows' on separate screens