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On Wed, 22 Jan 2014 11:36:13 -0500, wrote:
On Wed, 22 Jan 2014 09:11:38 -0500, Poco Loco wrote: I don't need light when I am not there. I guess you missed that part. If you insist on lighting up empty rooms and the perimeter of your house when nothing is there. I guess you are pitching in to use a more efficient light source but you are still polluting the sky with unwanted light. http://pollutionfacts.org/content/light-pollution-facts When we were at Bryce Canyon, the park rangers put on a presentation of star gazing at night in the park. Leading up to the telescope viewing was an indoor slide show. They had several slides to show how the light pollution has been working its way across the western US from California. I'd never thought of it, but that show made a big impression. I have been vacationing in the west for about 10 years and when you actually get some place where it is dark, you really appreciating how badly we have polluted the night sky. Most of the kids today have never actually seen stars. It is virtually impossible to make out most of the constellations if you are anywhere near a city. That has now become a problem out in the country too. It just doesn't get dark anymore. That was one of the points the ranger made - most kids have never seen the Milky Way. At Bryce, that night, the Milky Way was very visible. I don't think I'd seen it for years and years, probably not since leaving the farm in southern Minnesota. |
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