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The Essay, Strange Encounters Episode guide

  1. On the Revolutions of Astronomy

    4/4 Galileo's ideas will change old concepts of the Universe. But his attitude brings conflict

    First broadcast: 27 Sep 2007

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  2. Animal, Vegetable, Mineral

    3/4 Two 1820s German chemists show that living matter and minerals can be chemically identical

    First broadcast: 26 Sep 2007

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  3. The Pillars of Wisdom

    2/4 Richard Fortey is in the 1820s with geologist Charles Lyell, finding Earth-shaping forces.

    First broadcast: 25 Sep 2007

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  4. Breaking the Time Barrier

    1/4 Archaeologist Clive Gamble sees evidence of the Stone Age in a gravel pit in north France.

    First broadcast: 24 Sep 2007

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