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: http://www.naic.edu/~nolan/amateur.html
Дата изменения: Thu Feb 24 23:02:00 2005 Дата индексирования: Mon Oct 1 21:34:29 2012 Кодировка: Поисковые слова: water |
First: an organization relevent to all amateurs (and professionals): International Dark-Sky Organization. This group spends its energy helping protect dark skies, and educating the public, government, and utilities on the efficient use of lighting. Most outdoor lighting is horrendously inefficient, sending as much light up into the sky as down on the ground where it is (presumably) wanted.