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Time Episodes

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  1. Cosmic Time

    4/4 Michio Kaku considers Einstein's theory of relativity and the variability of time.

  2. Earth Time

    3/4 This edition looks at the planet's time, asking where we came from and where we are going.

  3. Lifetime

    2/4 Michio Kaku looks at the human life span and scientific research into extending it.

  4. Daytime

    1/4 Michio Kaku meets a family whose body clocks force them to wake at 4am every day.