Hearing Aids/3D Puzzles/Toilets

Series 1 - Episode 4 Hearing Aids/3D Puzzles/Toilets

Sun 11 Jun 7:30pm - 8pm Discovery Science
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Sun 11 Jun, 8:30pm - 9pm Discovery Science +1
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Summary

How the designs of hearing aids, 3D puzzles and toilets were conceived, and the ways in which they have evolved.
Science