English
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Unexpected Delays on the Road to Zadar: A Travel Story
On our last leg to Croatia from Maribor to Zadar we were expecting an easy and relatively short ride of 400km. We could not have been more wrong. After 50km towards the border the gps started to show alerts about traffic jams ahead and delays increasing into the +2 hours range. We decided to exit…
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Selling Second-Hand Books: My First Experience with BoekenBalie
I had a long weekend free and decided to complete my library dabase. In the process I discovered a couple of books I have 2 copies of. Some time ago we were discussing with friends about buying and selling second hand books and they were using BoekenBalie because it is an easy process to sell…
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Hotel Citymap and Jack & Joe Steak and Burger Club in Maribor
Our second stop on our way to Croatia was in Maribor. We stayed in the Citymap Hotel which has free parking and 2 low power charging stations. They didn’t work with my charging card which was one of the exceptions on our trip. But it did accept my credit card so I was able to…
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Wels Steak and Grill in Austria
During our trip to Croatia last summer we were traveling from Regensburg to Maribor and had to find a place to charge and have lunch. We passed Wells and looked for a place to charge. It turned out there were some free charging stations next to a shopping mall and and a movie theatre. At…
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Joan as Police Woman in Leuven 2025 Concert Review: A Night to Remember
On November 24 2025 Joan as Police Woman played a concert in 30cc in Leuven. I saw her play in Leuven long ago in the period that she had released Real Live and To Survive, 2 albums I have at home and really like. I hadn’t followed newer albums so I didn’t know what to…
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Premier Inn City Center Hotel and restaurant Meridiano Regensburg
During our summer vacation we went to Croatia. On our way to Croatia we made a first stop to sleep at the Premier Inn in Regensburg. It is called the City Center Hotel but the neighbourhood looked more like some kind of business district with very little activity when we arrived. That probably explained the…
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Evariste Galois. 1811-1832, Laura Toti Rigatelli (ISBN 978-3-7643-5410-7, Birkhäuser)
I found this biography of Evariste Galois after reading about him in Eric Temple Bell’s Men of Mathematics. It is part of the Vita Mathematica series of the publisher with biographies of mathematicians, most of them published in German. The author is an Italian professor in mathematics with a special interest in the history of…
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Richard Feynman. A Life in Science, John Gribbin and Mary Gribbin (ISBN 978-1-78578-372-2, Iconbooks)
During my physics studies at university I became a fan of Feynman. His path integral formulation of quantum mechanics was a revelation after years of plodding through the standard formalisms by Heisenberg and Schrödinger and the mists surrounding the question what it all meant physically. Especially the fact that this approach was also applicable to…
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Exercised. Why something we never evolved to do is healthy and rewarding, Daniel E. Lieberman (ISBN 978-0-525-43478-8, Vintage Books)
I heard about this book in a podcast about running. 2 journalists discussed their own running habits and struggles and one of them mentioned this book as a good one to read. I definitely found it interesting as it gives insights from an evolutionary perspective to why so many people struggle to exercise even though…
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Bombelli’s formula to calculate the square root of 2
We owe following formula to Bombelli, approximately 1572 :
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