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防弹衣是如何工作的？
313,134 views
|
麦克斯·G·利维 |
TED-Ed
• August 2024
Read transcript
截至 1975 年，理查德·戴维斯被近距离射击了 192 次。但他不仅安然无恙，甚至每一次射击都是他推销新产品——防弹背心的演示。那么，这样一件轻便、柔韧的衣物是如何阻止子弹的呢？其秘密在于十年前发明的一种合成纤维材料——凯夫拉（kevlar）。麦克斯·G·利维在本视频中对凯夫拉惊人的强度进行了探究。 [导演：Vitalii Nebelskyi 和动作创意机构，旁白：Addison Anderson；音乐：Cem Misirlioglu]
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