23 季节
705 插曲
现代奇迹 - Season 9 Episode 12 第 12 集
How do you stop a speeding bullet? From body armor to armored cars and trucks, we review the history of the race between the bullet and a successful way to stop it. It's not exactly easy to design material that can catch gunfire traveling up to 3,000 feet per second. We'll look at little-known advances like bulletproof layering hidden in walls, futuristic smart materials that "remember" how to stop a bullet, and a system that deploys a shield within milliseconds when it detects an oncoming round.
- 年: 2022
- 国家: United States of America
- 类型: Documentary
- 工作室: History, H2
- 关键词: technology, invention, disaster, construction, machine
- 导向器: Bruce Nash
- 投:
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