Computer simulation, programming, software, technology, research, and more (since 2007)
Last week I went to Kraków in Poland for the HiPEAC conference. Turned into one of the more dramatic-ish trips I have been on. To get to Kraków I had to go via Copenhagen, taking an early flight out of Stockholm. Maybe the choice of that early flight was not such a good idea given the properties of the airport in Kraków…
Continue reading “Tricky Travel to Kraków”
Last week, I visited the Embedded World (2025). Only the exhibition, not the conference part. It was great to be back again, meeting old friends and making new acquaintances in the embedded business. It turns out I was rather lucky in getting there at all – there was that now infamous strike.
Continue reading “A Lucky Trip to the Embedded World (2025)”
We spent a few days in Vilnius at the end of October. Rather late in the tourist season, but the city was still open for business. It was a very good experience. Vilnius is one of the friendliest and cleanest places I have visited. Definitely on the “recommended” list. Here are some assorted notes from what we saw.
Continue reading “Vilnius – History, Russia, Ukraine”Last weekend, the yearly Flygdag (Airshow) of the Swedish Armed Forces took place in Uppsala at Ärna. Huge crowds, but it was still easy to get a good view of the aerial displays that took place. In this blog post, I just wanted to share a few photos.
Continue reading “Off-Topic: Swedish Armed Forces Airshow 2018”
How important is the documentation (manual, user guide, instruction booklet) for the actual quality and perceived quality of a product? Does it materially affect the user? I was recently confronted by this question is a very direct way. It turned out that the manual for our new car was not quite what you would expect…
This is just the first page, and as you can see if you know Swedish or German or both, it is a strange interleaving of sentences in the two languages.
The family and I spent last week on a cruise in the Mediterranean with Royal Caribbean Cruises (RCC). It was a wonderful vacation, and very family friendly. We did a number of shore excursions and got to see historical landmarks like the stadium at Olympia where the original Olympic games were held. Lounging by the pool on the ship was nice on our sea days, if a bit crowded. Service was fantastic, and you really do not need to think much at all about practical things while onboard. It just happens. Very relaxing. If I compare it to a typical all-inclusive hotel vacation, it is definitely higher quality with the added benefit of moving around and seeing multiple places in a week.
Electric bikes have started to become common,in Sweden in recent years. It’s been a big thing in other countries for a while, so I guess they have finally matured to the point that they can stand our climate. To be honest, I never quite saw the point of such a vehicle, until my wife took a job that perfectly fit their sweet spot, and I got to try hers. It was quite a revelation. I am usually rather hesitant to believe hype, but in this case, I think we do have the making of a really useful type of vehicle that offers a useful alternative for a particular niche in the transportation continuum.
Recently, I finally got to ride (if that is the right word) a Segway two-wheeler. Quite fun, actually. But when thinking hard about it, it really seems like a pretty pointless invention. Cool technology, fantastic control system design and programming – but still, it does not solve any real problem. As a product manager, my mind tends to view new things with an eye toward “what is the problem they are trying to solve” rather than how fun, attractive, or well-designed they are. Sometimes, good design is the point, of course. However, in this case, we are talking about a transportation device, and as such, the question is where it fits.
Adding electronics to systems that used to be mechanical has been the great wave of innovation for a quite a while now. Modern transportation just would not work without all the electronics and computers inside (someone once quipped that a modern fighter is just a plastic airplane full of software), and so much convenience has been provided by automation and smarts driven by electronics. However, this also introduces brand new ways that things can break, and sometimes I wonder if we really are not setting ourselves up for major problems when the electrons stop flowing.
Continuing on the thread from my previous post about the testing of products that fail to find problems that become obvious to (some) users after a very short time, I just read an article (in Swedish) about how the famed Tesla roadster cars behaved when they were confronted with Scandinavian winters.
Wow. The eruption of Eyjafjallajökull in Iceland and the resulting ashcloud has had an effect that I would never ever have expected. A near-total closing down of the European airspace is such a drastic thing to happen to nobody seems to have expected. It has certainly not been included in the list of worst-case scenarios to plan for in company and government contingency plans. Where does this leave us? In a very interesting situation indeed. Worst-case, we will have to do without air travel for months.
Almost exactly a year ago, I wrote a blog post about an adventure with delayed trains getting from Uppsala to Stockholm. As I said then, I am a train fanboy, preferring trains to most alternatives for most travel. Trains do have one big disadvantage though: when something goes wrong, you are unusually powerless and stuck. That happened to me last Friday. I spent some five ours in a dark train in a dark winter evening in the middle of the forest south of Laxå. Here is the story of that journey, and an observation about the impact of technology on our lives.
It was on a Friday the 13th, by the way. Not that I believe in that bad luck happens more on certain days, this certainly was an unlucky Friday (and very early Saturday).
We spent the past weekend in the Hague and Delft in the Netherlands. A short weekend trip, certainly, but still quite interesting. The obvious place to go visit in the Netherlands is Amsterdam, but these other places are well worth visiting too. Here are some observations on what I found interesting.
The first real snow reached Uppsala this weekend, lots of nice fluffy slippery cold snow on the ground and on the roads and everywhere else. It really is nice to have snow again, it lessens the effect of our dark winters and kind of puts you in a Christmas-like mood, especially now that the Christmas decorations are going up in town and shopping centers.
I also had to bring out the car for some errands and transports yesterday, and that new snow was probably the slipperiest I have ever driven on. It also provided an unsought opportunity for the electronic systems in our car to show themselves… both the stability and traction control and the anti-lock brakes were activated several times despite my pretty careful driving. For some reason, I never really believe that they would apply to me. I know that ESP and ABS are really good for safety, but for some reason I am a diehard skeptic that never quite believe these things work as they should. I guess this is another example of an embedded system that works as it should. Which really should not be a surprise.
I am a big fan of trains, I admit as much. I take the train almost every day to Stockholm, and I find that far superior to the stress and misery of driving a car or the poor comfort of a bus. I have always defended the railroad when people complain that trains are often late and unreliable.
But recently there have been a few cases of really bad delays hitting me… a couple of weeks ago, I missed a meeting at KTH by about 45 minutes after the train’s brakes broke. And today, we had an absolutely monumental delay — I arrived at my office some two-and-a-half hours late, which is pretty amazing (or abysmal) for a 40 minute train ride.
