How Do They Do It? 8x10
Season 8 · Episode 10
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Overview
How do they make the Japanese toilets that treat you to a wash and blow dry? How has the US Navy built a helicopter that doesn't need a pilot?
Season 8 · Episode 10
How do they make the Japanese toilets that treat you to a wash and blow dry? How has the US Navy built a helicopter that doesn't need a pilot?
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