Updates from February, 2008 Toggle Comment Threads | Keyboard Shortcuts

  • Prasanna 8:52 pm on February 29, 2008 Permalink | Reply  

    Joking ?? 

    B. Tech Student : (To himself) What??! Who has set up this experiment? Voltmeter in series and Ammeter in parallel ? Standards of the insti are falling monotonically. Sigh.

    Ph. D Teaching Assistant : Hey why are you fiddling with the circuit? I have got everything ready for you. You just have to take readings and show them to me.

    B. Tech : But the circuit is messed up! Let me just swap the Voltmeter and the Ammeter.

    Ph. D. : You don’t understand basic electrical sciences! Tell me if I give five amperes to a resistor, how much current will I get out of the other end?

    B. Tech : (Completely blown off) Ummm .. Five amperes?

    Ph. D. : No! You’ll get something less than five. That’s why it is called a resistor! Sigh .. the standards of the institute are falling badly.

    And that, my friends, is the best joke I’ve heard for a long long time.

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    • Srinidhi 9:05 pm on February 29, 2008 Permalink | Reply

      Stud wonly :P, but I don’t think TA’s are that bad

    • Prasanna 9:25 pm on February 29, 2008 Permalink | Reply

      This is not fiction 😛

    • Middle 1:22 am on March 1, 2008 Permalink | Reply

      haha… at first glance I thought there was a communication gap but since you vouch it is true, then the incident is at once too funny and too creepy!!!

    • Middle 1:23 am on March 1, 2008 Permalink | Reply

      Finally… did the guy realize the mistake? Or did he make you take readings on this legendary circuit?

      Here is an idea… you can call such a circuit by a name and use that as a lingo for cupping!

    • Prasanna 2:17 am on March 1, 2008 Permalink | Reply

      @Middle

      I don’t think he realised his mistake.

      Nice idea 😀

    • Deepak 10:03 am on March 1, 2008 Permalink | Reply

      I didnt know that RESEARCHERS@IITM are this bad. I guess I would laugh to myself from now on whenever I see a guy sporting the EUREKA shirt … 🙂

    • Prasanna 10:11 am on March 1, 2008 Permalink | Reply

      @Deepak

      I don’t think it’s a good idea to generalize. 😛

    • Arjun N Bharadwaj 1:02 pm on March 2, 2008 Permalink | Reply

      LOLZ!!! I had a similar horrendous experience in the Physics Lab. I had to spend 10 minutes convincing the TA that ‘F’ in the experiment actually stands for Magnetic Field and not Force 😦 !! And add to that they are arrogant. He gave me 7.5 even though my answer matched with the theoretical value.

    • Ramya 4:05 pm on March 2, 2008 Permalink | Reply

      @arjun..
      I too had a tough time convincing that TA …. not only about the field but also about y=ut+1/2*a*t^2 and the direction of horizontal component of earth’s magnetic field n necessity to align the plain of the coil along magnetic meridian. If Newton or Gauss were ever to hear his explanations….they would commit suicide da…

    • Prasanna 12:33 am on March 3, 2008 Permalink | Reply

      @Arjun & Ramya

      I thought I would stop meeting such people after my first year 🙂

    • Nishanth 8:20 am on March 4, 2008 Permalink | Reply

      LOL… and he is doing a PhD at IIT? Maybe he came to the wrong class.. or maybe he wants to disprove Kirchoff’s law, conservation of matter and redefine current in the process..

    • bharathwaj 11:10 am on March 4, 2008 Permalink | Reply

      I am not surprised at all!

      after all, i live with ppl of this kind u see 🙂

      slowly i might become one also 😦

    • Prasanna 11:13 am on March 4, 2008 Permalink | Reply

      @Nishanth

      😀

      @bharathwaj

      You are gawd ..

    • bharathwaj 11:16 am on March 4, 2008 Permalink | Reply

      hehe 😛

      you should listen to them profs as well…

      if dx/dt = something, there are some who are qualified enough to cancel the ‘d’ in the the Numerator and Denominator and write the equation as x/t = something.

      so, u can imagine the plight of quantum mechanics

    • Prasanna 11:17 am on March 4, 2008 Permalink | Reply

      I can’t believe that!

    • bharathwaj 11:21 am on March 4, 2008 Permalink | Reply

      u want me to recommend some courses of this kind, so that u can enjoy your life all the more? 😉

    • Prasanna 11:25 am on March 4, 2008 Permalink | Reply

      No no, please…..

    • Karthik 9:50 am on March 9, 2008 Permalink | Reply

      @bharathwaj: Are you serious?

    • Naveen 11:44 pm on November 23, 2009 Permalink | Reply

      I noticed this a long time after it was published, but seriously… What the!?! I guess I am the next one in line to undergo interrogation about resistors and vacuum pumps…

      @Bhaand: LOL @ cancelling d’s in dx/dt. 😀

  • Prasanna 6:04 pm on February 23, 2008 Permalink | Reply
    Tags: afocal, , , , moon, sangam, ursa major   

    Night Skies .. 

    Sangam

    Can you guess the time of the day when the above photo was taken? (Click on the photo for a bigger version). Would you believe it if I said 2 AM? Oh yes, 2 AM it is! Maybe the stars in the photo can convince you 🙂

    We, Astronomy Club, IIT Madras held a session yesterday night at the Sangam Grounds. I tried out some shots of the sky using a Canon Powershot A540 with its shutter open for 15 seconds. And in the wee hours of the night I get photos like the one above! Clearly, this was my first time in taking such long exposures!

    I managed to capture Ursa Major (which came out very well). That’s the one below

    Ursa Major

    I also captured some afocal shots of the moon.

    Moon From Sangam

    My (alomst) first shot at Astrophotography!

    Aside: my Hackergotchi Tutorial is first on google! <Search>

     
    • Suraksha 7:23 pm on February 23, 2008 Permalink | Reply

      Whoa! Really nice shots! And I’ve seen that 2 am sky – it’s amazing! 🙂

    • anonymous24 10:38 pm on February 23, 2008 Permalink | Reply

      Thanks!

      You mean you’ve seen such long exposures before?

    • Suraksha 11:23 pm on February 23, 2008 Permalink | Reply

      Nope, just a 2 am sky that looks like a 6 pm sky! 🙂

      And slight doubt, you call yourself anonymous24 and put your face up for the whole world to see? 😛

    • anonymous24 11:25 pm on February 23, 2008 Permalink | Reply

      Naming the domain was a miscalculation. Now, it doesn’t matter, does it 😛

    • Arjun N Bharadwaj 10:19 am on February 24, 2008 Permalink | Reply

      Heh-heh 😀
      Ursa Major looks god-level…Why you can even see Arundhati…
      Hey and if possible add Akarsh’s ‘Bhooth’ Picture too 😛

    • Prasanna 10:39 am on February 24, 2008 Permalink | Reply

      Thanks

      😀 And no, thanks. That would be too many photos 😛

  • Prasanna 12:02 am on February 21, 2008 Permalink | Reply
    Tags: , , , monkey, snake   

    Scary? 

    We share our hostel with the man below.
    Ganga Monkey
    And him too??
    Ganga Snake
     
    • Arjun N Bharadwaj 6:51 pm on February 21, 2008 Permalink | Reply

      Hey, you know what?? They must put these pictures in the GCU handbook!!! Let’s see if junta still want to join IITM 😀 .

    • anonymous24 7:18 pm on February 22, 2008 Permalink | Reply

      @Arjun

      I would add Freshie night pics too 😀

    • v 9:45 am on February 24, 2008 Permalink | Reply

      The first fellow has a home in our college too. But the second…scary!

    • anonymous24 9:48 am on February 24, 2008 Permalink | Reply

      @v

      Welcome 😀

    • Nishanth 8:22 am on March 4, 2008 Permalink | Reply

      OOh interesting.. Relatives of the second guy are bcoming quite common in some of our hostels.. First one.. well I am sufficient 😛

    • Prasanna 11:14 am on March 4, 2008 Permalink | Reply

      😀

    • ng srinivas 10:13 pm on March 17, 2008 Permalink | Reply

      Where are the crabs da? 😛

  • Prasanna 5:33 pm on February 18, 2008 Permalink | Reply
    Tags: , , howto, tutorial   

    Hackergotchi Tutorial 

    I’ve put down few steps to make your own Hackergotchi in less than 10 minutes. I’ve used the GIMP. Nevertheless, it should be easy to use these steps in other Image Editing Softwares as well. (Click on the thumbnails to view full size)

    Original

    1) Find a good photo of yours, preferably with a plain background. If you can’t find one such photo, you’ll realize the power the Fuzzy Select tool (also called Magic Wand by some others). We start with this photo (Google was generous enough to find a picture of a baby this purpose 🙂 ).

    HGC5

    2) Now, use the Fuzzy Select (Magic Wand) Tool. Play around with the option called threshold. You always have Ctrl+Z to go back. Select any region which does not fall under what you define as Face and keep deleting them. ( Process can be made faster by holding down the Shift key while selecting. This will keep adding all the selections)

    Be sure to have the Feather Edges option checked. We don’t want rough edges.

    HGC73) Now use the Free Select Tool (Lasso) to select and delete the areas that are still left over. Magnifying the image will be of great use to remove unwanted areas very close to the face. Edges of the selection come out better when the image is magnified.

    HGC8HGC9

    There, we have the face. To get better edges, we could do a few more things.

    HGC24) Select the white region (area other than the face). This can be done by clicking on the white area with the Fuzzy Select Tool.

    Now, do Select -> Grow.. and grow the selection by 1 px. Delete.

    HGC35) The edges should be better now. Select the white area again using the same method described above. A good idea is to make this area transparent. Select Colors -> Color to Alpha. If you can’t find this under the Colors Menu search somewhere else. Basically, we want to make the white region transparent. Select White in the Color to Alpha dialog box and press OK. We just have to drop a shadow and we’re done.

    HGC126) To add a shadow, select the face. For this, select the transparent area using the Fuzzy Select Tool just as we did for the white area. Invert this Selection by doing Select -> Invert or Ctrl + I. We now have the face selected. Now select Filters -> Light and Shadow -> Drop Shadow. Again, if you can’t find this option, search somewhere else.

      final

      We’re done!

       
      • Arjun N Bharadwaj 12:47 pm on February 19, 2008 Permalink | Reply

        You have inspired me to try my hand at it 🙂

        Maybe, by tomorrow morning mine will be ready.
        Thanks…

      • anonymous24 3:02 pm on February 19, 2008 Permalink | Reply

        Good 😀 Do show me

      • Iain Cheyne 7:00 am on May 1, 2008 Permalink | Reply

        Did you try the foreground select tool with feathering turned on? It would do the selection job much more quickly.

    • Prasanna 1:48 pm on February 16, 2008 Permalink | Reply
      Tags: IIT Life, oxidation, pond   

      Guess Where? 

      Guess Where

      Any idea where this photo was taken ? 🙂

      Update: Photo taken at the IIT Madras Oxidation Ponds, not a beautiful lake 🙂

       
      • Ganesh KB 1:58 pm on February 16, 2008 Permalink | Reply

        Bessie broken bridge?

      • anonymous24 2:01 pm on February 16, 2008 Permalink | Reply

        No. You’re too far away 😛

      • Kaushik Anand 4:44 pm on February 16, 2008 Permalink | Reply

        Not sure but i think the building at the back is the IITM Research Park

      • anonymous24 5:00 pm on February 16, 2008 Permalink | Reply

        @Kaushik
        The building at the back is your hostel! Now, that’s a clue 😛

      • Kumar Appaiah 6:26 pm on February 16, 2008 Permalink | Reply

        Oxidation ponds. The senior speaks out of experience!

      • anonymous24 6:54 pm on February 16, 2008 Permalink | Reply

        😀

      • Arjun N Bharadwaj 7:56 pm on February 16, 2008 Permalink | Reply

        Now, that was a Million Dollar Question. Who could have guessed that?? 😀

      • anonymous24 7:59 pm on February 16, 2008 Permalink | Reply

        @Arjun
        🙂 Try going to this place. You can’t believe that you’re walking inside a city!

      • bharathwaj 3:10 pm on February 19, 2008 Permalink | Reply

        walking thro’ the less explored parts of the campus is real bliss… do it.. to enjoy it thoroughly…

        the campus is just awesome for all these non-academic endeavours.

    • Prasanna 7:36 pm on February 15, 2008 Permalink | Reply
      Tags: fim song, Random, tamil   

      Naakka Mukka 

      ‘நாக்க முக்கா’ வா! அப்படின்னா ?

      சமீபத்துல ஒரு நண்பன் சொல்லி ‘நாக்க முக்கா’ என்ற பாட்டை கேட்டேன். அட! என்ன சொல்ல்றதுனே தெரியல. கேட்ட உடனே ஒரே டான்ஸ், கூத்து தான்! அதை பாடிய பெண்மணிக்கு அப்படி ஒரு குரல்! அப்போதுலேர்ந்து மனசுக்குள்ள நாக்க முக்கா ஒடிட்டே இருக்கு. ஆனா நாக்க முக்கா – னா என்னவா இருக்கும்னு ஒரு கேள்வி எழும்பியது. அதுக்கு விளக்கம் எதுவும் இல்லை என்பது தெரிஞ்ச விஷயம் தான். இருந்தாலும் ஒரு கை பார்க்கலாம்னு தொடங்கினோம். காமெடியா போச்சு!

      நாகேஷ், பழநி மற்றும் கார்த்திக், மூன்று கல்லூரி பசங்க இதை பற்றி பேச்றாங்க –

      நாகேஷ் : டேய் பசங்களா!‌ இந்த நாக்க முக்கா பாட்டை கேட்டீங்களா ?

      கார்த்திக் : கேட்டேன் டா! என்ன கொடுமை சரவணா!

      பழநி : டயலாகு லாம் விடாதே. பாட்டு சூப்பரா இருந்தது.

      நா : ஆமாம் டா! என்னால டான்ஸ நிறுத்தவே முடியல! நாக்கமுக்கா னா என்னவா இருக்கும் ?

      கா : இது நல்லா இருக்கு! டேய்! முக்காலா சொக்காப்புலா -க்கு மட்டும் அர்த்தம் இருக்கோ ? எதுக்கு டா வீணா டயத்த வேஸ்ட் …

      : நாக்க அமுக்கு!! ஹா ஹா ஹா… கார்த்திக்கு நல்லாவே பொருந்துது 🙂 (ஆடிக்கொண்டே) நாக்க அமுக்கு!! நாக்க அமுக்கு!!

      கா: உன்ன நாக்குல குத்த்டா மூக்குல குத்தடா ?சொல்லு சொல்லு நாக்கா மூக்கா … ம்ம் ??

      நா : சூப்பர் டா! ஆனா இப்படியும் இருக்கலாம். ஹிந்தில ‘நாக்’குன்னா மூக்கு! அதுனால இதை எழுதிய கவி indirect-ஆ நீ வடக்கிந்தியனா தமிழ்நாட்டுக்காரனா – னு கேக்கறார்.

      கா : போட்டு தாக்கிட்டே டா டேய்! நாகேஷு ! ரொம்ப நாளா எதோ அரசியல் கட்சி ஆரம்பிக்க போறேன்னு சொல்லிகிட்டு இருந்தியே! நானும் இப்ப உன் கட்சி .

      நா : வெரி குட் டா! என்ன பெயர் வெக்கலாம் ? நா. கா . மு . க – னு வெக்கலாமா ? நாகேஷ் கார்த்திக் முன்னேற்ற கழகம் ! நல்லா இருக்குல ?

      : நல்லா தான் இருக்கு. அப்ப நான் உன் கட்சில இல்லயா ? கைவிட்டுடியே ?

      கா : போதும் டா. நாக்க அமுக்கு!

       
      • Leela 9:09 pm on February 15, 2008 Permalink | Reply

        Lolz. Nice.

      • anonymous24 9:16 pm on February 15, 2008 Permalink | Reply

        @லீலா

        நன்றி 🙂

      • Volcano 10:23 pm on February 15, 2008 Permalink | Reply

        This is too good to read!!!

      • Shyam 10:42 pm on February 15, 2008 Permalink | Reply

        nice but many typos da..

      • Smriti 10:50 pm on February 15, 2008 Permalink | Reply

        Nice one! And Shyam, I can’t find any typo?!

      • anonymous24 10:51 pm on February 15, 2008 Permalink | Reply

        @Volcano
        Thanks

        @Shyam
        Thanks and check your browser 😛

        @Smriti
        Thanks! 🙂

      • Kaushik Anand 10:53 pm on February 15, 2008 Permalink | Reply

        Stud post da…..but knowing ur affinity towards carnatic music i thought you wud shun such songs

      • anonymous24 11:01 pm on February 15, 2008 Permalink | Reply

        @Kaushik
        I do listen to a variety of genres 🙂 and Thanks

      • Nishanth 11:36 pm on February 15, 2008 Permalink | Reply

        brilliant lol.. semma analysis.. 😀

      • ng srinivas 11:50 pm on February 15, 2008 Permalink | Reply

        Nice one da 🙂

      • Arjun N Bharadwaj 8:33 am on February 16, 2008 Permalink | Reply

        I dont know tamizh. 😦 Next time, I meet you, tell me what this post is all about… 🙂

      • anonymous24 9:35 am on February 16, 2008 Permalink | Reply

        @ Nishanth
        Joblessness da :P. And thanks to some of my friends who came up with ideas 😀

        @NG
        Thanks!

        @Arjun
        Sure

      • prakash 10:43 am on February 16, 2008 Permalink | Reply

        Sthudd only,,,,very informative post on Naaka mukka

      • akarshsimha 8:05 pm on February 16, 2008 Permalink | Reply

        அப்போதுலேர்ந்து மனசுக்குள்ள நாக்க முக்கா ஒடிட்டே இருக்கு.

        He pained me with that song during the Principles of Measurement Lab class…
        He pained SVV and Prakash during the previous (App Mech) class with this song.

        I’m so much of a Tamizh n00b, that I can’t understand half of what is written above.

      • v 9:50 am on February 24, 2008 Permalink | Reply

        Most new songs have lyrics that are completely incomprehensible. Nice one.

      • vasanth 7:03 am on April 7, 2008 Permalink | Reply

        lyrics in english please, i love this song.

    • Prasanna 3:14 pm on February 14, 2008 Permalink | Reply
      Tags: , gnome, indian, indic computing, language, scim, typing   

      Type in Indian Languages 

      Scimನಮಸ್ಕಾರ வணக்கம் सुस्वागतम्

      Recently I got this urge to type in Indian Languages on my comp. And so I came across SCIM and m17n. I use Debian GNU/Linux and the GNOME Desktop Environment. Getting this to work was a cakewalk!

      Here are the steps to follow.

      • Open a terminal. And install the following packages.
      • sudo apt-get install m17n-db m17n-lib-bin
        sudo apt-get install scim scim-m17n scim-gtk2-immodule scim-modules-socket scim-modules-table

      • That’s it! You now have everything needed on your computer.
      • Run scim . You’ll notice a keyboard-shaped icon SCIM Keyboard Icon on your GNOME Panel. Right click on this and go to ‘SCIM Setup’. Play around with this. There are lots of interesting features like Keyboard shortcuts which you can configure to make life easier switching languages.
      • Now right click on the area where you are typing and Select SCIM Input method.
      • Once this is done, you can Left Click on the above icon, select your language and start typing!

      Mac OS X users could try this. Others, maybe you could try this.

      ನಮಸ್ಕಾರ வணக்கம் नमस्कार

       
    • Prasanna 10:19 pm on February 13, 2008 Permalink | Reply
      Tags:   

      Hackergotchi 

      HackergotchiReward to myself for getting over with an AM110 Quiz – My own Hackergotchi !

      Thanks to inspiration from Sup3rkiddo’s Blog.

      Watch out for a tutorial on How to create your own Hackergotchi coming up soon 🙂

       
      • Akarsh Simha 12:40 am on February 14, 2008 Permalink | Reply

        Hey! It looks amazing!
        Especially the rotation you’ve given to it.

        I think your tutorial will be very beneficial… preferably with screenshots 😀
        Maybe you can put a copy on the LUG Wiki too 😛

      • anonymous24 12:51 pm on February 14, 2008 Permalink | Reply

        @Akarsh

        Thanks!

    • Prasanna 10:25 pm on February 12, 2008 Permalink | Reply  

      Small is Beautiful 

      (11th Feb 2008, Mugging Session for Quiz 1)

      Well, we constitute the only branch of engineering at IIT Madras that can fit into a single hostel room – Engineering Physics

      Now who can beat that? 😀

      You were right, Mr. Schumacher. Small is indeed Beautiful.

       
      • Arjun Bharadwaj 11:06 pm on February 12, 2008 Permalink | Reply

        Vanakkam!! Welcome to the world of blogging 🙂

        I guess, the ‘Battle of Telescope’ (Fought between Dean and the students 😛 ) is singularly a blog-worthy experience. Put post ASAP. 😀

      • anonymous24 11:19 pm on February 12, 2008 Permalink | Reply

        @Arjun

        Thanks. And +1 for the idea! Will put it one of these days 🙂

      • Volcano 11:22 pm on February 12, 2008 Permalink | Reply

        This is really amazing!!… I had never thought about that before… It definitely offers an advantage 🙂
        A sort of counter RGing which is not possible in the other branches 🙂

      • anonymous24 11:26 pm on February 12, 2008 Permalink | Reply

        @Volcano

        You’re right. Counter RGing was a nice way to put it.

      • Akarsh Simha 7:18 am on February 13, 2008 Permalink | Reply

        Welcome to blogging.
        Nice one…
        Can we have an enlarged version of the pic?

      • Leela 10:33 pm on February 13, 2008 Permalink | Reply

        Nice start. 🙂
        Keep blogging.

      • anonymous24 10:36 pm on February 13, 2008 Permalink | Reply

        @Leela

        Thanks 🙂

      • madhu. 8:17 pm on February 15, 2008 Permalink | Reply

        put up sv n n2o’s photoes of our pmt class..surely junta will like them..

      • ramya 12:17 am on February 16, 2008 Permalink | Reply

        welcome to blogging !!

        Wonderful!!!! This concept is awesome.. 🙂
        Hope it will inspire RG Gods some day…. 😛

      • N 10:02 am on February 16, 2008 Permalink | Reply

        I agree!

      • anonymous24 10:15 am on February 16, 2008 Permalink | Reply

        *Bows to the great N*

      • bharath 2:47 pm on April 15, 2008 Permalink | Reply

        counter RGing?? ante?

    • Prasanna 5:03 pm on February 12, 2008 Permalink | Reply
      Tags: Linux, magic   

      Magic Cookies ? 

      There exist all sorts of weird things in computer jargon, cookies, for instance. But how about ultra cool Magic Cookies ? Sounds great right ? But did you know that the term cookies itself is derived from the term Magic Cookies?

      Why would have these been christened Magic Cookies? Maybe because they just work! Or perhaps someone was trying to solve some problem, somehow he came up with these, got excited and called them Magic.

      How about a situation where magic stops working? Yes, I was caught in such a situation. I am a GNU/Linux user who regularly SSHes into his account on his department server (Yes, with X forwarding) sitting in his room. In down-to-earth words, I login to my department server from my room and I can open Firefox installed in that computer and see it here. This is a very useful feature in a place where the internet generally cups.

      This was working perfectly till some time back. Suddenly, this stopped working (Maybe due to a kernel upgrade?). The error:

      Xlib: Invalid MIT-MAGIC-COOKIE-1 key
      Error: Can’t open display: localhost:10.0

      So, I googled and found lots of people having the same trouble. I tried some of the solutions. But none of them worked. One of them was something to do with xauth . I realized I didn’t have this particular package installed. So I installed xauth . And before I did anything with xauth , ssh -X was working perfectly.

      Maybe Magic Cookies are magic!

       
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