Gases
Gas is one of the four fundamental states of matter (the others being solid, liquid, and plasma).A pure gas may be made up of individual atoms (e.g. a noble gas like neon), elemental molecules made from one type of atom (e.g.
3 episodes
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Kinetic Theory
Melvyn Bragg and guests discuss the growth of ideas about gas pressure, from Newton's theory that static particles push against each other to Maxwell and Boltzmann's moving atoms.
23 May 2019
Featuring: Steven Bramwell, Isobel Falconer, Ted Forgan
Plasma
Melvyn Bragg and guests discuss plasma. First observed in 1879, plasma is the most abundant matter in the universe, far more than solid, liquid or gas.
13 October 2016
Featuring: Justin Wark, Kate Lancaster, Bill Graham
The Vacuum of Space
Melvyn Bragg and guests discuss the Vacuum of Space, from the innards of the atom to the outer reaches of space.
30 April 2009
Featuring: Frank Close, Jocelyn Bell Burnell, Ruth Gregory