1:23:09

The chemical history of a candle - with David Ricketts

56:33

Comment Michael Faraday a-t-il inventé cela ? – avec David Ricketts

1:18:30

Andrew Szydlo's Chemistry of Coal

1:56:14

Roger Penrose: Why The Big Bang Was Not The Beginning

1:06:26

Physics experiments that changed the world – with Suzie Sheehy