17 हंगाम
287 भाग
How Do They Do It? - Season 9 Episode 8
How do they make steel cables strong enough to hold up a 50,000 tonne bridge; why do modern hunters use medieval weapons; and how do shops know which clothes sizes...
- वर्ष: 2021
- देश: Canada, Singapore, United Kingdom, United States of America
- शैली: Documentary
- स्टुडिओ: Discovery
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