Season 15 · Episode 7 of 20
Aired Nov 9, 2017
Ballpoint Pens, Pizza, Reed Rugs
Thu, Nov 9, 2017
·
25 min
Streaming on Discovery+, HBO Max, DirecTV On Demand, Science GO + 8 more
0 of 20 watched this season
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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Airs
Thu, Nov 9, 2017
25 min
Show
How Do They Do It?
287 episodes
Episode
S15 · E7
in How Do They Do It?