Blog hub
Essays
The ideas underneath: the mathematics and concepts that hold sound and its analysis together.
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EssayThe brothers who said no to Philips: the 1942 Galician tape recorder
Two Galician brothers invented a machine that recorded sound on steel wire in a family workshop, in the middle of the post-war years and with barely any electronic components available. When Philips wanted to buy the technology from them, they said no. This is the real story, with its bittersweet ending.
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EssayPISA 2025 Spain: AI and digital distraction, with data
I analysed the PISA 2025 microdata for Spain: digital distraction in class is associated with lower scores; AI chatbot use doesn't follow a simple pattern.
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EssayData sovereignty: from principles to architecture
How the GDPR, the AI Act and the Digital Bond Manifesto translate into technical decisions: no analytics, no cookies, with an explicit legal basis.
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EssayAI as a tool, not as the final product
Why I see generative AI as a tool that amplifies what you already know, not a substitute for judgment. With real data, not hype.
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EssayWhat a Jupyter notebook is and why to start with it
A Jupyter notebook blends explanation and runnable code in one document. What it is and why I think it's a great way into programming, especially for teaching.
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EssayThe Fourier transform: from time to frequency
Why sound can be understood as a sum of frequencies, what the Fourier transform does with that idea, and how it explains the spectrum.
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