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60-Second Adventures in Thought: Track 5

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Can a cat be both alive and dead? Can a computer think? How does a tortoise beat Achilles in a race? Voiced by comedian David Mitchell, these fast-paced animations explain six famous thought experiments, from the ancient Greeks to Albert Einstein, that have changed the way we see the world. Subjects as vast as time travel, infinity, quantum mechanics and artificial intelligence, are squeezed into 60-second clips that will tickle your funny bone and blow your mind.

By: The OpenLearn team (The Open University,)

  • Duration 15 mins
  • Updated Wednesday 28th September 2011
  • Posted under Philosophy
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Track 5: The Twin Paradox

An identical twin in space illustrates Einstein's special theory of relativity.

© The Open University 2011

Tracks in this podcast:

Track   Title Description
1 Achilles and the Tortoise    Ancient mathematical trickery proves that a mighty hero cannot overtake a tortoise. Play now Achilles and the Tortoise
2 The Grandfather Paradox    A well known story that questions the logic of time travel. Play now The Grandfather Paradox
3 The Chinese Room    An argument against computers ever being truly intelligent. Play now The Chinese Room
4 Hilbert’s Infinite Hotel    A never-ending hotel, always full of guests, helps to explain the nature of infinity. Play now Hilbert’s Infinite Hotel
5 The Twin Paradox    An identical twin in space illustrates Einstein's special theory of relativity. Play now The Twin Paradox
6 Schrödinger’s Cat    This famous experiment tackling quantum theory involves a cat in a potentially lethal box. Play now Schrödinger’s Cat




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