How Do They Do It?

S15 E17 Pearls, Damascus Steel Knives and Hippo Rollers

本集简介

How do they grow America's only freshwater pearls in Tennessee? How are the world's sharpest knives made, and how do they forge the world's sharpest knives?

上一集

2019/10/18 S15 E16

Charcoal, Soba and Vaulting Poles

How do they use ancient techniques and modern technology to produce thousands of tonnes of barbecue charcoal? How do they cook up Japan's soba noodles?

下一集

2019/10/22 S15 E18

Sugar Beets, Feather Dusters, and Balloons

How do they turn ugly root vegetables into sweet sugar? How do they make feather dusters? And, how do they make billions of balloons to keep parties popping?

当前季

S15

2019-10-08

哇，窗口太小啦

How Do They Do It?