How Do They Do It?
Pearls/Knives
Season 15 Episode 17 of 20
How do they grow America's only freshwater pearls in Tennessee? Plus, a look at how the world's sharpest knives are forged
How Do They Do It? airs on Discovery Channel +1 at 5:00 PM, Wednesday 17 June. (Subtitles.)
Topics
Education ➝ Science ➝ Factual Topics
General