Portrait of Lord Melvyn Bragg, host of In Our Time

Exotic matter

There are several proposed types of exotic matter: Hypothetical particles and states of matter that have "exotic" physical properties that would violate known laws of physics, such as a particle having a negative mass. Hypothetical particles and states of matter that have not yet been encountered, but whose properties would be within the realm of mainstream physics if found to exist.

4 episodes

Episodes in this category also belong to the following categories:

  1. Dark matter

    Melvyn Bragg and his guests discuss dark matter, the mysterious and invisible substance that is believed to make up most of the universe.

    12 March 2015

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    Featuring: Carolin Crawford, Gresham Professor of Astronomy Carlos Frenk, Anne Green

     
  2. Superconductivity

    Melvyn Bragg and guests discuss ideas about why some materials lose their electrical resistance at low temperatures and expel their magnetic field and why that matters.

    26 January 2023

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    Featuring: Nigel Hussey, Suchitra Sebastian, Stephen Blundell

     
  3. The Neutrino

    Melvyn Bragg and his guests discuss the neutrino, a mysterious subatomic particle which is one of the most numerous, and least understood, objects in the universe.

    14 April 2011

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    Featuring: Frank Close, Susan Cartwright, David Wark

     
  4. Wormholes

    Melvyn Bragg and guests discuss the origins of the idea that there might be shortcuts between galaxies and the challenges when proving these are not just unlikely but impossible.

    26 September 2024

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    Featuring: Toby Wiseman, Katy Clough, Andrew Pontzen