Category: science
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I have finally completed all 6 masterclasses from The Engineering EEcosystem. The masterclasses contain very valuable information. Eric Bogatin is great at explaining electrodynamics from a practical perspective without going into Maxwell’s equations. I really enjoyed his style of teaching. Now I even remember Eric’s famous rule #9 and that the answer to all questions…
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I’m a huge fan of the #RP2040 microcontroller. It is a powerhouse with a decent price tag and has excellent community support. Yesterday, I tested a firmware prototype. Nothing serious, just switching a few outputs controlled by an interrupt. The idea seemed easy; I know that it is possible from the datasheet, and I got…
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I wish everyone a merry Christmas and a happy new year. So far, there is no snow in Helsinki. Therefore, the Christmas market looks a bit gray at the moment. 2025 was a busy year, and I’m happy to relax now for a few days. My highlights of the year: Receiving funding from the Erkko…
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What is the purpose of window functions used in discrete Fourier transform (DFT)? Where to find a good reference discussing different window types?
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Beer review – the ultimate step for every paper Yes, you read right; I typed beer review. That is because one of our coauthors has the charming tradition of homebrewing a keg of beer for every published paper.
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In the past month, I reviewed several papers for scientific journals. For me, being a reviewer is on the one side, a necessity. Universities, and especially doctoral programs demand the publication of peer-reviewed articles, and from that I conclude that participation in the peer review process as a reviewer to balance the system is also…
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I’m happy to share that the paper 🌐DOI:10.1038/s41598-025-06818-9 has just been published in Scientific Reports. It demonstrates how polycaprolactone (PCL) powder can be melted in a focused ultrasonic field in the presence of water. This also gives control over the porosity of the printed objects. As PCL is already used in biomedical applications, this new…
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My paper got published today, and I’m really impressed with the bold upselling strategies of this particular publisher.
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I found this 5-year-old image in my photo archive. It is probably a good illustration for fast charging of electric cars. Photo can be reused under CC-BY 4.0 license.
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A few weeks ago, I showed my prototype on the breadboard. After that, I converted it to a PCB and ordered it from China. It was the first time that I ordered an assembled board from China. It was a very great experience to see how easy it is to convert an idea into a…