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About me

Where ?

Swedish flag


Europe, Sweden=yellow

I live in the very north of Europe, in Stockholm the capital of Sweden.

Sweden is one of the biggest countries in Europe but not very much people live here, about 9 million. We have a lot of space to walk about.

Hi, I'm Lars Karlsson
Brown bear

And no, we don't have any polar bears here, but about 4000 brown bears in the forests. If you find something that look like this, run like hell!

Rudolph with the red nose

Rudolph with the red nose is everywhere in north of Sweden!


Also a couple of hundreds of thousands moose (elks) running around.

Do I have any hobbies ?

Home Theatre:

In the darker half of the year I earlier spent a lot of hours at my hobby home theatre.

Now it have started again with a speaker renovation project.

Here is some info:

Sound and Home Theatre page


It's so nice to save all the memories from different places I have visited and all the interesting things that I have found. I also try to share that feeling to you with the image shows here on my homepage.

My photography page:

Färjeläger Adelsö


I have always been so fascinated about the universe. So big, so strange, so beautiful, so exiting. Are we alone? The last 15 years we know something we didn't know earlier. There are plenty of planets around other stars, not only our Sun have planets!

Hale Bopp and NOT


A big interest in my life are economy, investments in stock market is one part of that. You must have some money to live on when retired!



Cars has always been one of my major interests. Technology changes and nowadays we talk about battery cars.

Car meeting reports and my own cars:

My earlier cars

Traveling and bicycling:

I like to travel when I don't know what to expect. Driving the car and find new things. Find where to live in the last minute. But I don't need to travel very far away, if the weather is nice and the sun is shining, I take a day off and take a bike ride in Stockholm where I live.

You find a lot of photo reports from my travel page:


Education and Work


I'm interested in a lot of things so I have choose a wide range of educations, to name some of them:
Economy, Technology, Physics, Data Analysis, Laser-physics, Solid state physics, Atomic Physics, Molecular Physics, Biophysics, Astrophysics.

I think it's wise to have a good overview than just a narrow knowledge / experience.

Solver of problem:

A lot of people asked me to solve problems, most in the technical area. I have 30 years of experience from the industry and University. Experience from electronics, high and low voltage systems, electrical interference, radio and radar system, biotechnology, technical sales, marketing, mathematical and physical problems, CCD technology, optical systems, technical support, pneumatics, precision engineering and mechanical engineering, software development, finance, investment.

I did that as an employee or as a consultant.


I was and still are very interested in math and physics and it's very helpful in the astronomy hobby.

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