Monthly Archives: August 2008

More cleaning

A week ago a friend of mine donated a vitrine to our apartment, and today I’ve been working with converting it into a server closet. The first thing that needed to be done was to turn the back of the vitrine into Swiss cheese to be able to ventilate the computer-generated heat from the cupboard.

Air inlets

And here is the final result. The vitrine contains one server, a stereo, DSL modem and some other stuff, while the vinyl player and cordless telephone is located on the outside. The upper part is still empty, but I and my room-mates will probably find something to put into something in it. I am very satisified with the result, and the living room has been much cleaner now that almost all the cables have become hidden in the furniture.

Vitrine with server inside

Order restored!

I did a much-needed tidying of my room, and the order here in Linköping has therefore now been restored. Now I just need something to put on my walls, they are quite empty for the moment.

Desk
Piano and desk
Yamaha CP300
Bookcase

Starting today, I’m a sophomore

School started for real today, but still it’s actually surprisingly calm. The first lecture in Numeric Analysis started at 1500 today, and we warmed up with some new definitions and methods of thinking. Having only worked with exact math before, none of us are too proficient in numeric thinking and calculation.

The web-based course from the College of Dalarna in Mandarin also begun, and it was the first time I sat in discussion with other people with webcams, everybody talking to each other in Mandarin phrases. There has been an enormous lack of information about the course, so I’ve had to discover most of the things by myself. Things are a bit different and not as well-coordinated as here at the University of Linköping, and I doubt I would have understood the registration process if I hadn’t had one year of experience with how higher education works.
The course is at a newbie level, starting from the first page. Everybody in the course is really on the beginner level, and even though I had missed the fact that you had to see the lecture before attending the seminar, nobody seemed noticed that. Indeed I have studied some Mandarin already, as I had no trouble speaking and reading the words.

My Thinkpad T30 laptop almost died on me today, as the CPU fan took its last breath. The fan sounded like a chainsaw, and it is almost expected to happen just now, since the computer is five years old already. I can’t be without a computer, though, so I had to get it working again. Lenovo couldn’t help at all (I don’t feel like ranting today, so I’ll just leave out the part of the story where I sat 30 minutes on the phone talking to a clueless support assistant :) ). For a while I thought the only options were buying a new computer or somehow fixing the fan, since it seemed impossible to get a spare part.

What needs to be replaced

What needs to be replaced

I removed the keyboard and unscrewed the heat sink assembly, in which the fan is located. After a few minutes of thinking, I simply took the assembly apart, got the fan out, and then inserted a small amount of a light lubricant. Back with everything, put on some arctic silver, pray, and press the power button. Amazingly, it worked again! Though I still can hear imperfections in the fan sound, I think this will buy me enough time to find a spare, and it already seems like I’ve found a completely new fan assembly in Germany. Let’s see what will happen.

New PGP keys

I have generated a new PGP key. If you want to securely communicate with me, be sure to check my PGP keys page. The old key has been revoked.

The almighty Karnaugh map

The evening before an exam is always very special. It is crucial to do the correct preparations before the test next morning, not only regarding the subject, but having a good daily rhythm in terms of food and sleep is just as important. Math exams are the toughest, and the five hour time limit passes by quicker than any other five hours. There cannot be much doubting in the theories and formulae, any hesitation or mistake costs precious grades.

Tomorrow I’ll be redoing the course final in digital electronics, to increase my grade from 3 to 5, the highest achievable. The last time I did this exam I wasn’t prepared enough, and being the first large exam I did at the university, I didn’t have the routine and stamina to give my best. And this time I’m prepared, I doubt there’s anything in the course I’ve missed. But you never know…

The exam starts at 0800, and I’ll get up at 0620. I’ll start the day with an athlete’s breakfeast, traditional Swiss Bircher Müesli, and after packing the exam snacks, I’m off. Let’s hope this goes all the way!

Easy SMS reminders for your LiU calendar

This guide is only interesting for students at the Linköping University, LiU

Abstract

When I started at the university a year ago I wrote about how to get reminders about lectures and lessons directly into your mobile phone. Since then, LiU has switched calendaring systems and is now using a system called TimeEdit. This simple guide shows how to set up a reminder system for your school schedule and thereby never miss a single lesson.

Goal

As with the old guide, I will show you how to never miss a lecture or lesson at the uni by getting SMS reminders before they start. I will only use services provided by the university and you will be ready to go in just 15 minutes! You will see information regarding when and where to go, and it is possible to customize how long before the reminder will be sent.

I have been using this setup the last six months, and it is working fairly well. I don’t know if this method works for other institutions than LiTH, but an educated guess is that any student as well as teachers and administrators can benefit from this. Your milage may vary, though.

Another good thing with this approach is that the reminder will match the current schedule at all times. In my time at the university, lectures have become moved or even cancelled, and those who write the schedule down at the start of each semester tend not to know about such changes before it is too late. By following this guide, you’ll be safe!

How to do it, then?

  1. Go to the LiU calendar. Select your faculty.
  2. Pick your courses and/or student groups.
  3. At the bottom of the generated calendar, find the link “iCal”.
  4. Right-click and select “Copy to clipboard” or “Copy shortcut”, depending on your web browser.
  5. Log on to the e-GO system. If you don’t have an e-GO account, you can use a standard gmail account.
  6. In the top left corner, click on “Calendar” (“Kalender” if your’e using a Swedish system)
  7. Find “Add” button (Swedish: “skapa”).
  8. Click “Add by URL” (See the image)
  9. Paste the adress you copied from the LiU calendar into the Public Calendar Address bar.
  10. Click “Add”
  11. Now note the new calendar to the left, your LiU calendar has been added to your e-GO calendar. It is probably called “TimeEdit”.
  12. You can go back to the calendar main page and check if it looks alright

Reminders

Now we want to get the SMS reminders up and running.

  1. Click on the little arrow next to the “TimeEdit” calendar and select Calendar Settings
  2. I recommend that you change the name of the calendar, I simply named mine “LiU”
  3. Click on the “Notifications” link
  4. To get SMS reminders, you’ll need to verify that the phone number is yours. Click the “Set up your mobile phone to receive notifications” link on the bottom of the page
  5. Select your country and type in your mobile phone number
  6. Click the “Send verification code” button
  7. You’ll recieve a text message on your phone, containing a code. Enter that code in the text box.
  8. Click “Finish setup”
  9. Now you can select which reminders to recieve, and when they should be sent. I usually select 15 minutes.
  10. Click on “save” on the bottom of the page

Finishing touches

Your’e done, and all you need to do is to sit back and relax while the mobile phone takes care of the calendar. It seems quite reliable, in all this time I can only remember one time when I didn’t get the reminder at all. Quite a feat!

For some reason, though, it seems like the calendaring system sometimes sends out duplicate reminders. This is an issue with the LiU Timeedit system and not with the google calendar, and it’s been there for the last six months.

If you’re having problems, check the LiU documentation, and the Google docs. You can also drop me a comment here, or ask me if you run into me at the university.

Happy calendaring!

En sjöman älskar havets våg

Mmm…the Swedish west coast — It’s just too beautiful in the summer! Another beautiful week on Elida V.

Click any photo to browse the whole album!

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The musicians
Troubled weather
Jonathan and I sailing the J/80
Marstrand approach
Mollösund
A quirky mooring
Elida V
Sails of Elida
"A great view up here!"

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Impromptu bow thruster

We all like sheep have gone astray

I’ve been a member of the Church of Sweden all my life, and the last years I’ve been paying membership fees through my federal tax payments (one percent of my income). Since I became old enough to manage my own tax, I have made the concious decision to remain a member because I have felt that at least something good must be there somewhere, and that the Church hasn’t gone too far off from the path.

Until now. I can no longer stand for what the Church of Sweden is doing (Swedish) and I will withdraw my membership, hoping to sponsor a more Jesus-focused organization with my money. Prästerik has also been writing about the Church recently, a very good read (if you know Swedish :) )

Now, as a believing Christian I usually don’t care too much about different denominations, I find ecumenicalism to be very important all over the world. That, however, does not mean we should embrace and accept everything just because “other people do it”. When somebody is doing wrong you just cannot accept just for the sake of acceptance. The Church seems to care more (Swedish, again) about being seen than to reflect upon what a church really does in the first place. Because of these, and other reasons I found during the recent years, I can now say I disagree with what the Church is doing and will no longer stand for them. I mean…look at what they write about their faith on the website. I know that only 10% of my blog readers come from Sweden, but try to find the word “Jesus” on that page. At the time of writing, it can be found once, in a user comment. This is a Christian church, people!

Some people, especially in the Church, seem to think that the gospel should become “more polished” so that people will have easier accepting it and bringing more people to God, but I believe nobody will find Jesus the least bit interesting if we remove what he really is! And today there is really no limit to polished, colgate-smiling things to do and/or buy to make you Feel Better™, and then why would anybody choose the Church to find such things? Will anybody who “tries” will find it is only makeup and no substance?

Note that, when I write “Church” capitalized, I specifically mean the Church of Sweden, Svenska Kyrkan, and no other denomination.

Let’s see what you have to say. I don’t know if I’ve opened a can of worms here, but do comment and write what you think!

Much ado

Seems like I have got new neighbors in the apartment above me. They have been quite noisy two nights in a row, and yesterday it took until one o’clock in the morning before the music died down. I’ve been living here for a year now, and the last two days have been more noisy than the whole year. Let’s see if they calm down when the orientation week is over, otherwise I’ll leap into action:

No more holiday

Hope you like the new design! I have been using the Sandbox theme engine and am very happy with it. There are probably still some bugs, but I finally got a more professional look and feel on the site.

I am now back in Linköping for the autumn semester, and kick-started yesterday with two math exams. I had already passed them, but I wanted to raise my grades on them. The plan is to remove all three:s from my grade chart, and it is going well. School starts for real in a little more than a week, and during the first two months we’ll be studying two new topics; vector calculus and numerical analysis. I’ve never done anything in the numerical field of math before, so I am really looking forward to that course.

This fall I am also going to start a first course in Chinese! I haven’t learned especially much from my own studies, but I believe I’ll learn faster now.

I have a long year before me now…