I'd like to get Digital Surface Model data from Switzerland. I want to calculate building volume from it. Even I am searching for LIDAR data, but I did not find any free data.   Is there any free LiDAR or DSM data set available for this country?
Where can I find free elevation data for Europe?   The available resolutions and terms of use are important details that I also seek.
See my edit below, this is not totally a duplicate of   My reverse-search function in the CLI is broken and I don't know how to fix it back...  When I hit ctrl+r and search a command I did earlier, find it then press the right arrow key to use it, the output is broken. Here is an example:  # I reverse-searched the word "test" then pressed right arrow yoshiji@x1carbon:~/path/to/git/folder (master) $ch)`test': rake test #                                              ^^^^^^^^^^ weird output #                                                     ^ cursor right there   It also "shifts" my cursor to a different position. If I press enter, the right command is executed (rake test in this case) so it means the text displayed is not the same as what is actually executed.  I know this is most-likely related to my PS1 export in my ~/.bashrc, so here are the last lines of this file:  # Git branch in prompt. git_branch() {   branch=$(__git_ps1 2&gt; /dev/null)   if [ "$branch" = " (master)" ]; then      echo -e "\033[33m${branch}\033[00m" # yellow   elif [ "$branch" = "" ]; then      echo -e "\033[90m (no git)\033[00m" # red   else      echo -e "\033[32m${branch}\033[00m" # green   fi } PS1='\u@\h:\w$(git_branch) \$ '   This is something I wrote to displays the git branch in orange (if master branch) or else in green (or no git in gray).  Do you guys have any idea on what is causing this weird behavior?    Edit: This is a different problem from the  in the way that I am using echo -e "some string" to return a string having color+name of the git branch from the function git_branch(). Using echo -e does not escape the characters \[ and \] (try it yourself in your CLI: echo -e "\[\033[33m\]test").  Ideally, I would like to keep those conditional colors based on the branch's presence &amp; name (gray if no branch, orange if master, else green). Problems with pie charts There seems to be in increasing discussion about pie charts.   The main arguments against it seem to be:   Area is perceived with less power than length. Pie charts have very low data-point-to-pixel ratio   However, I think they can be somehow useful when portraying proportions. I agree to use a table in most cases but when you are writing a business report and you've just included hundreds of tables why not having a pie chart?  I'm curious about what the community thinks about this topic. Further references are welcome.  I include a couple of links:         In order to conclude this question I decided to build an example of pie-chart vs waffle-chart. Reading the question posted  left me with a more general question:  Given the professional title and name: Dr. (First Name)(Last Name), is there some way to differentiate between the holder of a philosophical doctorate and a medical doctor? Wouldn't it be more appropriate for a PhD holder to have the title (First Name)(Last Name), PhD? The pronunciation of the word "a" Most times we hear that the letter A is pronounced as [ə], but sometimes I hear that it is pronounced as [eɪ] in American English. Such as the following sentence: From VOA Special English:  She says governments must make that goal of a continental free trade area a reality.  The first A is pronounced as [eɪ], the second A  is pronounced as [ə]. Why? Does it have some regularity in it? I'm getting a PC with Windows and I want to dual boot using Ubuntu as my primary OS.  I want to create a Home partition to store all my files and hopefully be able to access them on Windows 7 without having to manually mount the partition or anything.  I want to know what kind of partition should I create and if I can share my Home partition to simplify matters.  Thanks Prove that $\frac{R/ \ker \phi}{(\ker \phi + J)/ \ker \phi} \cong \frac{S}{\phi(J)}$ Let $\phi: R \to S$ be a surjective homomorphism. Prove that $\frac{R/ \ker \phi}{(\ker \phi + J)/ \ker \phi} \cong \frac{S}{\phi(J)}$ for an ideal $J$ of $R.$  Obviously, $S \cong R/ \ker \phi$(first isomorphism theorem) and $\phi(J)$ is an ideal of $S$, since $\phi$ is surjective( $\forall s \in \phi(J), s = \phi(j)$ for some $j \in J, \forall s' \in S, s' = \phi(r)$ for some $r \in R$, so $ss' = \phi(j)\phi(r) = \phi(jr) \in \phi(J)$, and $ss' = \phi(r)\phi(j) = \phi(rj) \in \phi(J)$ ).  However, I'm having trouble with going on. If it's important, I mean a unitary ring by a ring. Can you switch to the other Unarmored Defense by multiclassing? PHB p164 states:      If you already have the Unarmored Defense feature, you can't gain it again from another class.   So if I start as a Monk and gain the UD(Wis) feature, and then at next level up, take a level in Barbarian, can I switch to the alternate UD(Con)? Or am I stuck with UD(Wis), even if I take 19 levels in Barbarian?  I'm unclear if the rule is stating this or stating that you can't use both at the same time, which I know. I am trying to show that how the binary expansion of a given positive integer is unique.  According to this link, , All I see is that I can recopy theorem 3-1's proof?  Is this polished enough of an argument. Thanks Microsoft has steadily improved its operating cash flows in the past three years. Microsoft has steadily improved its operating cash flows in the last three years. Microsoft has steadily improved its operating cash flows for the past three years. Microsoft has steadily improved its operating cash flows for the last three years. Microsoft has steadily improved its operating cash flows for the past three years. (&quot;for&quot; omitted) Microsoft has steadily improved its operating cash flows for the last three years. (&quot;for&quot; omitted) Microsoft has steadily improved its operating cash flows during the past three years. Microsoft has steadily improved its operating cash flows during the last three years. Microsoft has steadily improved its operating cash flows over the past three years. Microsoft has steadily improved its operating cash flows over the last three years.  Which of them are idiomatic and preferred? Are they interchangeable? I have Ubuntu 12.04 installed on my PC, recently I have edited /etc/passwd  and changed  user1:x:00:00:user1,,,:/home/user1:/bin/bash   to give root permission to user1 and the system always need to login as root, for running some custom software.  Now it seems the sound is not working, the volume icon is disabled. I understand that the pulseaudio demon can't be run as root that's why the audio is not working. How can I resolve it, like set the permission of pulseaudio to run as root.   When I type the command    /usr/bin/pulseaudio --start   Giving me the output  W: [pulseaudio] main.c: This program is not intended to be run as root (unless --system is specified). E: [autospawn] core-util.c: Home directory /home/user1 not ours. W: [autospawn] lock-autospawn.c: Cannot access autospawn lock. E: [pulseaudio] main.c: Failed to acquire autospawn lock   Edit   Solution for problem:  I have fixed the problem by disable root checking for pulseaudio equalizer  sed -i 's/exit 1/#exit1/g' /usr/bin/pulseaudio-equalizer How many cpu sockets does Windows 10 support? I would like to build a new computer (it's been 7 years since the last one). Does Windows 10 support more than one ? What is the $n$ times iterate of $f(x)=\frac{x}{\sqrt{1+x^2}}$? Usage and origin of "sister" in expressions like "sister company, sister ship, sister site" etc The term  is often  used figuratively  to refer, for instance,  to a “sister company” for a company  within the same group, or to a “sister  site” for  sites that belong to the same family. This connotation as explained by the   means:         belonging to a pair or group of similar and related things, such as businesses, usually owned or operated by the same person or organization:         our sister company in Australia.          also, from :        You can use sister to describe something that is of the same type or is connected in some way to another thing you have mentioned.    ⇒ ...the International Monetary Fund and its sister organisation, the World Bank.   ⇒ ...Voyager 2 and its sister ship, Voyager 1.       This usage appears to be common with things that are  regarded as feminine and are associated, as if by kinship,  with other similar things that belong to the same group. An early  usage example of this is the "sister" referred to  ships:         the US battleship Missouri and her sister ship, the Wisconsin.      In other instances,  the "feminine" issue is less explicit as in the case of internet sites, so I guess this usage has to do with the fact that English is less gender specific when it comes to things or abstract entities.   Questions:    Does “sister” apply to whatever entity that belongs to the same group irrespective of its real or perceived gender? or could "brother" be used instead?  Where does this usage come from? try+gerund/infinitive (Difference in meaning) How can I vertically align entries in my acronyms' list? I use the Glossaries package to generate it. Here is MWE:  % !TeX program = xelatex % !TeX encoding = utf-8 % !TeX spellcheck = ru_RU  \documentclass[12pt, a4paper]{article}  \usepackage{polyglossia} \setdefaultlanguage{russian} \setmainfont[Ligatures=TeX]{Times New Roman}  \usepackage[xindy={glsnumbers=false}, nonumberlist, nopostdot, nogroupskip]{glossaries} %\setglossarystyle{super} % uncomment for style "super" \makeglossaries  \begin{document}  \newacronym{bam}{ДАП}{Двунаправленная Ассоциативная Память} \newacronym{ai}{ИИ}{Искусственный Интеллект} \newacronym{am}{АП}{Ассоциативная Память} \newacronym{ann}{ИНС}{Искусственная Нейронная Сеть} \newacronym{an}{ИН}{Искусственный Нейрон} \newacronym{it}{ИТ}{Информационные Технологии} \glsaddall  \printglossaries  \end{document}   With the default style I have the following:  As you can see, the long names are not vertically aligned. What I want can be achieved with the    \setglossarystyle{super}   But it this case, short names lose the BOLDness, some small horizontal indent appears and the spacing between lines becomes smaller:  where RED is some extra indent, which I don't need. Thank you for your answers! Why does "ls -all" show time for some files but only year for others? If you issue ls -all command some files or directories have the year and some have the time? Why do some show the year while others show the time? Is the time representative of the time the file was created? My computer is loud: How do I tell which fan is the issue? On my new computer, my fan(s) is/are plain LOUD! Using SpeedFan, I find that my temps are all under 32 degrees C under my normal use (IDK how accurate that is but the CPU itself says 27 C).  The fan doesn't sound unbalanced and it isn't making sounds in rhythm (Not the usual rrrrrrrRRRRRR... rrrrrrrRRRRRR... rrrrrrrRRRRRR... rrrrrrrRRRRRR), just a constant fan. I am thinking about oiling the fans, but I can't decide if it is the PSU fan or a case fan or the CPU fan. If it's the CPU fan I will most likely just replace that with a quiet fan. How can I tell which fan is making the noise (if not multiple)?  One thing that I am thinking may be the problem is my CPU fan isn't PWM so would swapping that out help? There is no "linear voltage" or etc thing in BIOS so I think it may be running at full speed. Also, I could have too much airflow because it is also making a whistling noise that you can hear close to it that sounds like when I accedentially put part of the side cover over my floor vent to get it out of the way. What nutrients can humans absorb in the mouth? For instance, I realise being able to absorb simple sugars in the mouth is pivotal in the rapid action of oral glucose gel. Thus I was wondering what nutrients in general can be absorbed directly within the mouth, and at what speed? How can I prove that $\mathbb{Q}[x,y]/\langle x^2+y^2-1 \rangle$ is an integral domain?  Also, I need to prove that its field of fractions is isomorphic to the field of rational functions $\mathbb{Q}(t)$?    (The question is taken from ) How to prove for each positive integer $n$, the sum of the first $n$ odd positive integers is $n^2$? I'm new to induction so please bear with me. How can I prove using induction that, for each positive integer $n$, the sum of the first $n$ odd positive integers is $n^2$?  I think $9$ can be an example since the sum of the first $9$ positive odd numbers is $1,3,5,7,9,11,13,15,17 = 81 = 9^2$, but where do I go from here.