The Way Things Work

The Sound of a Mammoth (Sound waves, echoes, hearing) (1x17)

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The islanders guide their mammoth herd through a large canyon in search of fresh pasture, but lose them in various pits, ravines, and crevices after a stampede. The islanders become confused by the echoes of the mammoths' calls, and require the Inventor to construct a device to bring them all back. Topics covered: echoes, sound waves, hearing, ear anatomy.