The Thames Barrier, the colour of prehistoric birds

12 December 2011
Presented by Richard Hollingham, Sue Nelson


This week in the Planet Earth Podcast - Sue Nelson goes to the Thames Barrier to find out how engineers use science to decide whether or not to raise or lower it, helping to stop storm surges from flooding London; while Richard Hollingham meets a scientist who developed a technique that reveals the colour of truly ancient fossilised birds.


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