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Latest Light pollution Stories

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

New study reveals: 'White' light suppresses the body's production of melatonin -- a compound that adjusts our biological clock and is known for its anti-oxidant and anti-cancerous properties -- more than orange light.

2011-08-06 00:00:30

LED Lighting manufacturer Evluma announces plans to expand its product line beyond the popular 40W & 50W outdoor dusk-till-dawn Clearlight and intends to enter the indoor lighting market with a dimmable LED PAR 64 ceiling light designed for use in ballrooms and conference centers.

2011-07-26 06:00:00

BURLINGTON, Mass., July 26, 2011 /PRNewswire/ -- Residents of Boston will be seeing the city in a whole new, brighter light thanks to new light-emitting diode (LED) street lighting from Philips.

2011-07-11 08:00:00

SATELLITE BEACH, Fla., July 11, 2011 /PRNewswire/ -- Lighting Science Group Corporation (OTC: LSCG) Chairman and Chief Executive Officer Jim Haworth issued the following statement regarding the movement to pass the Better Use of Light Bulbs Act, H.R.

2011-05-13 12:42:00

PEACHTREE CITY, Ga., May 13, 2011 /PRNewswire/ -- When an engineering study of the city of Bryan, Ohio, indicated that there was a need--and opportunity--for more energy-efficient street lighting, city officials began to research the best alternative to meet the city's needs.


Latest Light pollution Reference Libraries

7_680ea780e47f127f8391cefcc37578012
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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Word of the Day
postliminy
  • In Roman antiquity, the return of a person who had been banished, or taken prisoner by an enemy, to his old condition and former privileges.
  • In international law, that right by virtue of which persons and things taken by an enemy in war are restored to their former status when coming again under the power of the nation to which they belonged.
The word 'postliminy' comes from a Latin word meaning 'threshold'.