Railroad crossing sign virtually disappears in glare from misdirected, unshielded floodlights. Light Pollution: TO:

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Date: 2005-10-03 18:21:50		Railroad crossing sign virtually disappears in glare from misdirected, unshielded floodlights. Light Pollution: TO: Add to Reading List Source URL: selene-ny.org Download Document from Source Website File Size: 364,82 KB Share Document on Facebook