Ever wondered about the heart-rate accuracy of the cheapest Apple Watch compared to a medical-grade ECG chest strap? I did — and to find out, I wrote a Python script that compares heart-rate data from an Apple Watch SE (logged via WorkOutdoors.app on WatchOS) with +
A review of Nick Lane’s “The Vital Question” is easy to write: just re-arrange a dozen of his own passages. The book itself, though, is not easy to read. Unless… you understand at least the main principles of physics, chemistry and Latin. However interesting the +
I’d like to learn tai chi. For relaxation and defense. I’m ready to invest substantial amounts of effort and time. Who would you recommend as a mentor to me? +
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