The marathon world record stands at 2 hours 2 minutes and 57 seconds. Is it possible for a human to run the race in less than 2 hours flat? Part 1--the marathon's surprising history, and how to build the perfect distance runner.

The marathon world record stands at 2 hours 2 minutes and 57 seconds. Is it possible for a human to run the race in less than 2 hours flat? Part 1--the marathon's surprising history, and how to build the perfect distance runner.

The marathon world record stands at 2 hours 2 minutes and 57 seconds. Is it possible for a human to run the race in less than 2 hours flat? Part 1--the marathon's surprising history, and how to build the perfect distance runner.

#2 The Impossible Marathon, Part 1

A show about numbers and us. Documentary stories about ourselves, our world, our universe--guided by a curiosity for math and numbers.

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#2 The Impossible Marathon, Part 1

#2 The Impossible Marathon, Part 1