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Safety knife / The knife to prevent accident

Safety knife

We may hurt ourselves when we use knives to cut food or open boxes. We want use new materials to avoid cutting ourselves. The blade can detect human body temperature and body electric resistance. Thus the blade will blunt itself when it detects cutting toward a human.
The blade can automatically become soft when it detects human beings.Then it will recover to a sharp one when moved away from humans

University

Zhejiang University

Zhejiang University
Ningbo, China

Zhao Yijun,
Zhejiang University