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BBC Radio 4 is a radio channel that started transmitting on the 30th September 1967. It replaced BBC Home Service.

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In Our Time

Discussion & Talk

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Factual: History

Melvyn Bragg and guests discuss the ideas, people and events that have shaped our world.

BBC Radio 4 LW

Melvyn Bragg

Andrea Sella

Athene Donald

Justin Wark

Thomas Morris

In Our Time: States of Matter

States of Matter

03/04/2014

BBC Radio 4 - In Our Time, States of Matter

Melvyn Bragg and his guests discuss the states of matter, from solids to plasmas.

Melvyn Bragg and guests discuss the science of matter and the states in which it can exist, from solids, liquids and gases to high-energy plasmas.

Melvyn Bragg and his guests discuss the science of matter and the states in which it can exist. Most people are familiar with the idea that a substance like water can exist in solid, liquid and gaseous forms. But as much as 99% of the matter in the universe is now believed to exist in a fourth state, plasma. Today scientists recognise a number of other exotic states or phases, such as glasses, gels and liquid crystals - many of them with useful properties that can be exploited.

With:

Andrea Sella
Professor of Chemistry at University College London

Athene Donald
Professor of Experimental Physics at the University of Cambridge

Justin Wark
Professor of Physics and Fellow of Trinity College at the University of Oxford

Producer: Thomas Morris.

Intelligent speech, the most insightful journalism, the wittiest comedy, the most fascinating features and the most compelling drama and readings anywhere in UK radio.

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