Silicon

26 Mar, 2026 540 Chemistry

Misha Glenny and guests discuss the physics, biology and chemistry of the element silicon which is at the heart of some of the most useful and beautiful objects on the planet. While it is still being created throughout the universe, the silicon we have here was made billions of years ago in dying stars. In its compounds we have long used silicon for glass and, more recently, purified silicon has become the foundation of modern electronics. Perhaps less appreciated is the role silicon compounds play in the biology of life on Earth, on the levels of carbon dioxide in the atmosphere and the cycling of elements between land, oceans and atmosphere that sustains us.

Listen on BBC Sounds website

Guests

  • Kate Hendry No other episodes
    Oceanographer at the British Antarctic Survey and Bye-Fellow of Queen's College, University of Cambridge
  • Professor Andrea Sella 4 episodes
    Professor of Chemistry at University College London
  • Professor Monica Grady 10 episodes
    Professor Emerita in Planetary and Space Sciences at the Open University

Reading list

  • Silica Stories
    Christina De La Rocha and Daniel J. Conley (Springer, 2017) Google Books →
  • The Biogeochemical Cycle of Silicon in the Ocean
    Bernard Queguiner (John Wiley & Sons, 2016)

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Programme ID: m002t2v2

Episode page: bbc.co.uk/programmes/m002t2v2

Auto-category: 546.681 (Inorganic Chemistry - Silicon)