David Southworth

My working life has centred on temperature metrology, over forty years of calibration, training, technical writing and international project work. That background shapes how I approach everything else: a stated figure is only meaningful once you understand the conditions behind it, and the same is true of most claims.

Precision and presence

Precision is not coldness. The care it takes to make a measurement you can defend is the same care that good writing or a calm interface asks for.

How I work

I build websites, web apps and tools, I write technical and reflective pieces, and I help people get to grips with AI and digital tools through training. I use AI to assist with structure and expression in my professional writing; the ideas remain my own, and for poetry I use only my own words. I work plainly, say what I can stand behind, and leave out what I cannot.

A privacy-first instinct runs through the work. Where something does not need to collect data, it does not. Both FeelingVault and Between the Waves are built on that principle.

Background, in brief

• Over forty years in temperature metrology: calibration, ITS-90, measurement uncertainty.
• Technical writing and plain-English communication for specialist audiences.
• AI and IT training for individuals and small businesses.
• Web and mobile development, including a shipped iOS app.
• Counselling training, and the value of listening deeply.
• Photography, poetry, journaling and parkrun.
• UK-based, working locally and remotely.

If any of this connects with something you are working on, see the projects or get in touch.

Published work

Articles on temperature measurement, calibration and metrology published in Practical Wireless, Cal Lab and the instrumentation and measurement trade press.