How Do They Do It?

S15 E7 Ballpoint Pen, Ration and Mat

本集简介

How do they make some world's smoothest writing ballpoint pens that don't leak or fade? And, how do they make pizza for soldiers on the frontline?

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How did the ancient Greeks invent parchment with techniques still used today? And how do they make shuttlecocks, the fasting moving object in sport?

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In Cremona, how do they make modern violins that sound as good as the legendary Stradivarius? And, how do they build houses with volcanic rock?

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哇，窗口太小啦