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Engineering notes, with the working shown.

This is the published half of an org-roam notes tree — mechanical engineering, CFD, electronics, and chemistry, kept the way they were worked out rather than smoothed into a textbook. Alongside the notes: a set of static calculators for the numbers that come up again and again, and write-ups from actual bench work.

notes180 links359 tools31 last edit2026-07-28
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Calculators

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Ohm's law solver Reynolds number & flow regime Sprinkler & fire pump hydraulics (NFPA 13/20) Bolt tightening torque & shear stress PCB trace width Compressible flow (gas dynamics)
Note graph — 122 notes · 359 links
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