EMF 2024 - A Quick Retrospective


Selfie of me in front of a Tesla Coil. A big metal tube shooting sparks.

Six years ago, I went to my first EMF Camp. The next event was cancelled by Covid. The one after that saw me come down with Covid - although I presented remotely. So I was beyond thrilled to be able to attend & speak this year. There's always a risk that you can never recapture […]

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Infrared Infrastructure


Portacabin with hotspots.

I recently went to EMF Camp (which is Glastonbury for geeks - lots of random electronics, talks, art, and camping). Naturally, I took along my Infrared camera and pointed it at interesting things! First up… sewage! Festivals often have big tanks to take away human effluence. But how can you, a normal human, tell how […]

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Chatting Solar Panels at EMF Camp


A lot of very blurry faces overwhelmed by the light saturation.

I fucking loved my first visit to #EMFcamp. After two years of lockdown, I was over-excited at the chance to be with all my friends in a field this year. I was over-excited about doing a talk about my beloved solar panels. I was over-excited about sleeping in a goddamned camper-van! I was even - […]

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Convert WebVTT to a Transcript using Python


YouTube showing subtitles.

I want to convert YouTube's auto-generated subtitles into a plain transcript. Why is this so hard? This blog post gives a more detailed explanation than my answer to this StackOverflow question. Here's what the subtitles look like when you view a video: And here's what the code which generates those subtitles looks like: 00:00:00.930 --> […]

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Reflections on #EMFcamp - a Science-Fact Convention


Terence and Liz in front of Lasers at emfcamp.

At a science-fiction convention, you queue for hours to hear a bit-part actor describe what it was like on the set of a forgotten sci-fi show. At a science-fact convention, you have a beer with a person who is literally changing the world with a laser cutter, some diodes, and a smattering of Python. Welcome […]

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