Quantum electrodynamics
In particle physics, quantum electrodynamics (QED) is the relativistic quantum field theory of electrodynamics. In essence, it describes how light and matter interact and is the first theory where full agreement between quantum mechanics and special relativity is achieved.
2 episodes
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The Electron
Melvyn Bragg and guests discuss the discovery of this atomic particle in 1897 and what our growing knowledge of electrons has revealed about our world and may yet reveal.
29 September 2022
Featuring: Victoria Martin, Harry Cliff, Frank Close
The Photon
Melvyn Bragg and his guests discuss the photon, the fundamental particle associated with light.
12 February 2015
Featuring: Frank Close, Wendy Flavell, Susan Cartwright