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We often forget to reduce usage on water when actually using it, but we should treasure what we have before the resources on the earth are used up. Human Faucet is combined with hydroelectricity. A simple face icon will appear on the surface of the faucet when in use. The more amount of water used, the more it becomes unhappy, like a real person. The color also changes with the emoticons to tell user whether the water is cold or hot.
Yu-Ling Hsu, Ya-Chin Hsiao