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We are making rubbish every day, such as apple cores and banana skin. If we can make good use of some of them, we can benefit a lot from doing this. It is better to collect and use them rather than to throw them away. The “planting sun”store some food rubbish, make them ferment, create bio-energy, then take advantage of the sun to turn bio-energy into electricity for use. With this, we can ”plant“ electricity for some special situations.
School of Design, Hunan University