China plans to launch satellites that will illuminate city streets




Huge sums are spent every day on lighting city streets at night, and in the interests of economy and ecology it would be nice to reduce these sums. But to reduce the quality of illumination or the number of lamps is not reasonable from a security point of view. What to do? The Chinese authorities believe that for this it is possible to use natural light, which will be reflected by special satellites from the Sun and illuminate the whole city at night.

The start of the ambitious project is scheduled for 2020, and the experiment will be the city of Chengdu – the capital of Sichuan province, which is located in the south-west of the country. According to the authors of the project, in 2 years 3 satellites with a mirror reflecting surface will be sent to Earth’s orbit, which will reflect light directly to the city of Chengdu. If all succeeds, the satellites will shine 8 times brighter than the moon, and the savings on electricity will be 1.2 billion yuan (about $ 240 million) per year. As one of the project developers, Wu Chunfeng, from the Chengdu Research Institute of Aerospace Science, Engineering and Microelectronics, Chengdu, said

“The brightness and service time of the satellites are easily adjustable, and the accuracy of the lighting can be controlled within tens of meters. The three “artificial moons” will work alternately to significantly reduce the consumption of electricity by the urban infrastructure, especially in the winter period. ”

It is expected that the satellites will go into orbit at an altitude of 500 kilometers above the Earth and will illuminate the region with a diameter of 10 to 80 square kilometers.

The Chinese Xinhua News Agency also reports that the idea of ​​the project originated from the creators under the impression of the work of one of the French artists who depicted necklaces suspended from mirrors that illuminate the streets of Paris at night.


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