5
Mai/13

105 kilometers on the bike

by under Sport
Spring in Küssnacht

Spring in Küssnacht

Did a long but beautiful bike tour today: Einsiedeln, Schönenberg, Menzingen, Zug, Küssnacht, Weggis, Vitznau, Brunnen, Schwyz, Einsiedeln.

The tour is about 105 kilometers and very beautiful. Starting in Einsiedeln I often go down to Schindellegi and from there to Menzingen either directly or over Schönenberg. Both villages are on the hills above lake Zürichsee.

From Menzingen it goes down to Zug at Lake Zug. Zug is a lot deeper located than Einsiedeln, so sprint has already progressed far over there in comparison to Einsiedeln. From Zug around lake Zug back to Küssnacht, a very famous village located exactly beweet lake Zug and lake Vierwaldstättersee.

In Küssnacht I took this photo of a huge blooming bush. I don’t know its name but it was very impressive in its current blooming state. Lake Vierwaldstättersee is the most famous lake in Switzerland. Its great and I took my route from Küssnacht over Weggis and Vitznau, beautiful holiday locations to Brunnen.

In Brunnen I had already 80 kilometers and made a short break. The last 25 kilometers were more up than down and I was already quite exhausted, but managed to reach Einsiedeln 4 and a half hours after I had started.

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18
Apr/13

Mandelbrot in Excel

by under Science, Software Development
Mandelbrot in Excel
Mandelbrot in Excel

I am still on this Mandelbrot trip and had the idea that it should be possible to do the calculation in Excel.

Here is the result. It took me only minutes to implement it and as you can see in the different sheets, I have also implemented the Julia set in the same workbook.

The sheets are for 3 different resolutions and you see that the range where both sets are visible is from -2.2 / -1.5 to 0.8 / 1.5 for the Mandelbrot set and from -1.8 / -1.5 to 1.8 / 1.5 for the Julia Set.

I realized the different colors with conditional formatting which is a nice feature of Microsoft Excel. Points which are part of the set are black, points which are not part of the set are colored. The color depends on the number of iterations necessary to decide that they are diverting and is going from red and yellow to white.

You can download the Excel workbook from here. You might have to allow the basic script!

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13
Apr/13

Julia Set

by under Science, Software Development
Julia Set

Julia Set

I am a fan of the Mandelbrot set since I have seen it the first time. I developed a screen saver for windows which displays the Mandelbrot set and zooms in randomly.

I also tried to develop something similar for the iPhone but did not succeed for the time. When I was investigating possibilities to draw lines in HTML code, I saw that with HTML 5 there is a new tag <Canvas> which allows exactly what I need.

Here is the result. I have created a page which shows the Mandelbrot set and the same for the Julia set. Both are very impressive. You can zoom in by clicking somewhere in the graph and even move the graph with the mouse.

Here is the page with the Mandelbrot set and
here is the page with the Julia Set.

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10
Mrz/13

Engadiner 2013

by under Sport

Engadiner 2013

Engadiner 2013

I had my best time until now. This was the fourth Engadiner ski marathon I did. The race was very fast this year and it was quite easy. I was not exhausted like in other years. Only the very last kilometer at the end was hard.

I am still in group “Allgemein A” which is not bad but would like to get once fast enough to start in the “Elite” group. But this maybe will never happen.

The whole event is really funny. We have to start at 3 am in the morning and go by car to Landquart from where we take a 2 hours train to St. Moritz and from there its another ride on a bus of about 20 minutes.

This lets us arrive in Maloja just before 7:00 where we put our skis to the start to be in one of the front lines when the race begins. We booked breakfast in “Maloja Palace” which is the very best option for waiting until the race starts at 8:50.

This year I did more skating than before and the marathon in Einsiedeln was a very good preparation. The marathon in Einsiedeln is much harder and I was at my very end in the finish.

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16
Feb/13

Skilift Bennau

by under Einsiedeln
Skilift Bennau

Skilift Bennau

First time I was in Bennau for skiing. Its just 5 minutes with the car on the other side of Einsiedeln. I was surprised, how good you can ski there.

There are 2 escalators in parallel and a small beginners lift for kids. The slope is not too steep and not too flat so you can go down with quite a speed.

With my new skis it was much fun and I even tried to go down in the deep snow besides the prepared slope. But there was just too much snow. I think it was almost one meter. So much that you almost vanished in it.

Living in Einsiedeln is just great with all this possibilities you have in summer and winter.

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26
Jan/13

Network camera

by under Science
Edimax IC-3110W

Edimax IC-3110W

I just bought a network camera and was wondering how easy it is to install such a thing at home. Network cameras are very cheap nowadays. I just payed CHF 130,– including delivery. My model is a wireless model which has motion detection, email delivery and a night modus.

You have to connect it to power and enable the device on your router and it is connected. There is a nice web interface to change settings and you can just browse the IP and see the video. It even comes with an iPhone app which does video streaming.

Making it accessible from outside was much harder and cost me a couple of nights. Finally it worked when I assigned the camera a fix IP address and put it into the de-militarized zone in my router. With a normal Cablecome internet contract you do not get a fix IP address, so you have to use DynDNS.com or No-IP.com to solve this problem.

But now it works, and after having installed everything, I must say that it was easier than expected.

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