Preview Mode Links will not work in preview mode

Physical Attraction


New? Head to the episode guide or drop us a line with the contact form.

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: www.patreon.com/PhysicalAttraction - 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 www.autocracynow.libsyn.com 

Dec 7, 2018

The laws of thermodynamics govern the flow of energy - from your coffee cup to the sparse plasma floating between stars to the formation of black holes. 

And, in short, they are:

You can't win.
You can't break even.
You can't get out of the game.

These laws, which were first derived by dreaming of ideal heat engines, turned out to have profound and vital physical and philosophical consequences. Far from just relating to an arbitrary concept called "temperature", they can teach us about how the Universe began - and how it will all, inevitably end.

This episode deals with the Third Law of Thermodynamics - regarding the impossibility of attaining absolute zero. We'll also discuss the seeming paradox that, while you cannot reduce matter to a temperature of absolute zero in a finite time, you can have negative absolute temperatures.... according to certain definitions of temperature.  

You can listen to all of our archived episodes up at www.physicspodcast.com or listen to our sister podcast, Autocracy Now, at www.autocracynow.libsyn.com.

On the physicspodcast website, you will find a contact form where you can discuss any comments, questions, concerns, suggestions for future show topics or interview guests - we'd love to hear from you. You can also donate to the show there, or buy some bonus episodes to help support us: we have a Patreon, or you can label your Paypal donation and I will send you the episodes.

You can also contact us via Twitter @physicspod or @autocracynow. Thanks for listening, and tell fellow thermodynamic systems about the show!