4/26/2009

National Dark-Sky Week

via http://www.ndsw.org/

National Dark-Sky Week (NDSW) is an event in the United States, usually occurring in April, during which people in the United States are encouraged to turn out their unnecessary outdoor lights in order to temporarily reduce light pollution. Light pollution is a hazy blanket of light in the atmosphere caused by improper lighting fixtures which direct light up into the sky instead of down toward the ground. Not only does light pollution waste energy, but it also creates great problems for stargazers. This “blanket of light” causes the beauty of the night sky to fade, and if the problem of light pollution is not addressed now, we are destined to lose the beauty of the cosmos that have been a part of human civilization since its beginning.


Интересно.

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