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The “Emergency revolving leaf” is a simple emergency relief device design. People can use it to revolve, and makes noise and light coverage increased.
This idea came from Chinese Bamboo Rattles, it's done by crash make a noise to attract people. Therefore, when people have trouble at night, they will survived by use "Emergency revolving leaf" until they were rescued.
National Taiwan University of
Science and Technology
Taipai City, Taiwan
Yi Chen Chen
New Taipei City, Taiwan