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Temperature is very important for cooking, when blind people cooking they doesn't know the current temperature of the water, they only can use mouth to test the temperature, this is very dangerous. This spoon use the "memory metal" to sense temperature, with the center temperature changes of the spoon, the putter will lengthen or shortened, indicating the blind people the current temperature location, let the blind can be very accurately know the current temperature of soup is suitable for food.
National Cheng Kung University
I Jui Lee