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Latest Light pollution Stories

2012-03-27 23:03:11

Valoya Ltd, a leading provider of LED lights for horticultural use, was chosen by the University of Helsinki, Finland, for their strawberry cultivation without sunlight. Helsinki, Finland (PRWEB) March 27, 2012 Researcher Dr. Timo Hytönen and his research team at the University of Helsinki tested several artificial light sources for improving vegetative growth and flowering of wild strawberries. The LED lights from Valoya Ltd were among the tested products and proved to be superior in...

Exposure To 'White' Light Suppresses Melatonin
2011-09-12 09:39:25

  Exposure to the light of white LED bulbs, it turns out, suppresses melatonin 5 times more than exposure to the light of High Pressure Sodium bulbs that give off an orange-yellow light. "Just as there are regulations and standards for 'classic' pollutants, there should also be regulations and rules for the pollution stemming from artificial light at night," says Prof. Abraham Haim of the University of Haifa. "White" light bulbs that emit light at shorter wavelengths are greater...


Latest Light pollution Reference Libraries

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2004-10-19 04:45:43

Light Pollution -- Light pollution refers to excess light, created by human activities, that brightens the night sky enough to hide many stars from observers. For the average person, light pollution means that even on a clear, moonless night, only a few stars may be visible. When a city grows up near an astronomical observatory, light pollution can make the observatory effectively useless. Unlike most forms of pollution, light pollution isn't persistent: turn the lights off, and the...

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