You Never Know

… when obscure knowledge comes in handy! You can dismantle an old gutter without efforts, and without any special tools: Just by gently setting it into twisted motion, effectively applying ~1Hz torsion waves that would lead to fatigue break within a few minutes. I knew my stint in steel research in the 1990s would finally […]

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Lest We Forget the Pioneer: Ottokar Tumlirz and His Early Demo of the Coriolis Effect

Two years ago I wrote an article about The Myth of the Toilet Flush, comparing the angular rotation caused by the earth’s rotation to the typical rotation in experiments with garden hoses that make it easy to observe the Coriolis effect. There are several orders of magnitude in difference, and the effect can only be […]

Read More Lest We Forget the Pioneer: Ottokar Tumlirz and His Early Demo of the Coriolis Effect

All Kinds of Turbines

Dave asked an interesting question, commenting on the heat-from-the-tunnel project: Has anyone considered the fact that the water can be used to first drive turbines and then distributed to supply the input source for the heat pumps? I am a water turbine fan, and every time I spot a small hydro power plant on a […]

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Non-Linear Art. (Should Actually Be: Random Thoughts on Fluid Dynamics)

In my favorite ancient classical mechanics textbook I found an unexpected statement. I think 1960s textbooks weren’t expected to be garnished with geek humor or philosophical references as much as seems to be the default today – therefore Feynman’s books were so refreshing. Natural phenomena featured by visual artists are typically those described by non-linear […]

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Mastering Geometry is a Lost Art

I am trying to learn Quantum Field Theory the hard way: Alone and from text books. But there is something harder than the abstract math of advanced quantum physics: You can aim at comprehending ancient texts on physics. If you are an accomplished physicist, chemist or engineer – try to understand Sadi Carnot’s reasoning that […]

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