Writing

Field notes

Short writing on instrumentation, sensing, software and building companies. Most days, when there is something worth writing down.

1. 22 October 2026InstrumentationWhy electrochemistry should leave the benchA potentiostat is the most useful instrument most people have never heard of. The reason it stays in the lab is not physics — it is packaging.
2. 20 October 2026SensorsScreen-printed electrodes, explainedThree contacts, one drop of sample, and a surface you throw away after each measurement. Why the electrode matters as much as the instrument.
3. 18 October 2026WaterWhat ten parts per billion actually meansThe drinking-water limits for lead are small enough to sound theoretical. They are not — they are the reason sample handling, not just instrumentation, has to be right.