The Chinese city of Chengdu has a whimsical plan for conserving electricity. In 2020, it hopes to launch an artificial moon—or illumination satellite—that would complement the actual moon’s brightness to light up the city below, reducing the need for streetlights. This is according to Wu Chunfeng, chairman of the Chengdu Aerospace Science and Technology Microelectronics System Research Institute (CASC), who discussed the project at an innovation and entrepreneurship conference in Chengdu last week.
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