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Physical Attraction

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We are a physics podcast. But not just that - interviews with scientists, scholars, authors and reflections on the history and future of science and technology are all in the wheelhouse. Over the years, for over 200 episodes, we've had shows on the astrophysics of stars, a comprehensive history of nuclear fusion, thermodynamics, particle physics, climate change, economics, philosophy, the psychology of conspiracy theories, and even the lives of Louisiana Senator Huey Long, or scientists under Stalin in the Soviet Union. 

We are an independent show: everything you hear is created by one person out of passion and love. My aim in producing this show is never to talk down to people, but instead to discuss fascinating and vital subjects with scientific rigour, compassion, and an eye for narrative: to educate, inform, and entertain. I hope that you, the listener, will find something you like here. 

You can read about us here, which includes a comprehensive episode guide for new listeners covering all of the shows that we've done, as well as links to transcripts of many of the episodes.  

You can contact us here - everything goes through to my email and I try to answer each one. Your comments and questions help me to improve the show and also motivate me to carry on, so I highly appreciate reading anything you feel like sending. 

If you like what we do and want to help us keep doing it, you can donate here. I am extremely grateful for those of you who have done so. 

You can also subscribe to the Physical Attraction: Extra! Feed over at Patreon: - where for a small fee per bonus episode, you can help to support the show, and get some juicy bonus content too. The Patreon includes unique bonus episodes that stand alone, or alongside our existing series. But you will also get episodes as soon as I finish producing them, which is often months in advance: so, if you can't wait for your fix, that's where to go. 

We had a sister podcast, Autocracy Now, which deals with the lives of famous historical dictators. You can find some of their episodes on our feed, or the show itself at 

Aug 21, 2019

Hello and welcome to this episode of Physical Attraction. I’ve been excited about this for a while. Today, on the show, for the first time ever, we have not one but TWO guests, who have co-written an excellent book together. They are both currently researching nuclear fusion, and they have written a book about the future of fusion energy called… well, the Future of Fusion Energy.

Dr Justin Ball is currently studying plasma theory at Lausanne, and Jason Parisi works on turbulent transport in highly magnetized plasmas just a few buildings away from me here at the University of Oxford.

Their book is an excellent guide to the science, history, and future of fusion energy, and of real help in compiling the marathon efforts in the show so far, so I was excited to be able to grab both of them for an interview to talk about fusion. Since this comes after I’ve already been yakking about fusion for ages, the conversation does assume some knowledge of what nuclear fusion is, but should be easy to follow if you’ve listened to some of the episodes in this series already.

Thank you for listening to this episode of Physical Attraction. My guests were Justin Ball and Jason Parisi. If you’d like to find out more, please do get their book – The Future of Fusion Energy – which is a highly entertaining and informative read. They also both have websites in the same format – and – and they can both be found on Twitter if you’re into that sort of thing.

Remember, comments, questions, concerns, feedback, etc. can all be directed to me on Twitter at physicspod, or via the contact form on our website at – it’s always so wonderful to hear from listeners, and this is your chance to help me make the show as good as it can be! You can help us out by leaving a review on iTunes, purchasing past bonus episodes from the website, or just telling as many people as possible about the show to help spread the word if you like what we do.

Until next time, then, take care.