# How do you find a theoretical particle? Page: https://stenobird.com/podcast/oxford-sparks-big-questions-420721/how-do-you-find-a-theoretical-particle Text version: https://stenobird.com/podcast/oxford-sparks-big-questions-420721/how-do-you-find-a-theoretical-particle.md Podcast: [Oxford Sparks Big Questions](https://stenobird.com/podcast/oxford-sparks-big-questions-420721) Published: 2025-08-06T11:30:00+00:00 Episode link: https://oxfordsparks.libsyn.com/how-do-you-find-a-theoretical-particle Audio file: https://traffic.libsyn.com/secure/oxfordsparks/OX-_Particles-v2.mp3?dest-id=790107 Processing state: not_requested JSON: https://stenobird.com/v1/public/podcasts/oxford-sparks-big-questions-420721/episodes/how-do-you-find-a-theoretical-particle Duration seconds: 735 ## Resource How do you detect a particle that emits no light - in other words, something invisible? This is the intriguing challenge faced by scientists hunting for 'dark matter'. In our series finale, we talk to Elizabeth Bloomfield from Oxford's Department of Physics about dark matter, how we know it exists, and why her research is taking her deep beneath a mountain in Italy in the quest to find it. ## Actions - request_transcript: `POST https://stenobird.com/v1/public/podcasts/oxford-sparks-big-questions-420721/episodes/how-do-you-find-a-theoretical-particle/transcription-requests` — Idempotently request low-priority transcript generation for this episode. - read_markdown: `GET https://stenobird.com/podcast/oxford-sparks-big-questions-420721/how-do-you-find-a-theoretical-particle.md` — Read the agent-friendly Markdown representation of this episode resource. A page view does not enqueue transcription. Agents should invoke `request_transcript` explicitly when they need this episode processed. ## Transcript Full transcripts are not published on public pages unless there is a clear rights basis.