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This is the common scenario: we go to bed worrying where to put our glasses and we wake up again with them missing. To solve this problem, let’s go back to the key moments before we go to sleep. We will find that the most crucial movement is us putting down our glasses and turning off the light. Therefore by combining these two actions, we transform the movement into a feedback mechanism - you put your glasses at the right spot and the light will go off automatically.
national cheng kung university
Tainan City, Taiwan