How It's Made
Hearing Aids/3D Puzzles/Toilets
Season 1 Episode 4 of 13
How the designs of hearing aids, 3D puzzles and toilets were conceived, and the ways in which they have evolved
How It's Made airs on Quest at 4:30 AM, Tuesday 9 September. (Subtitles.)
Learn more about How It's Made and other education/science/factual topics on our factual page
Topics
Education ➝ Science ➝ Factual Topics
Technology