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Watch Royal Institution Christmas Lectures Season 8 Episode 4 Online

  • 5.1/10
  • Subtitles: English

The fourth lecture in the series, 'Simple Signs and Complicated Communications', is considered lost, as there is no known copy of it. If you do have a copy of the recording, the Royal Institution would love it if you got in touch at xmaslectures@ri.ac.uk to help us make all our CHRISTMAS LECTURES available for future generations.