Quezon City.  As schools get ready for next week’s Brigada Eskwela cleanup, repair and maintenance activities, the ...

DeSantis. The orange lights can provide the same intensity of illumination as the mercury-vapor lights currently in use in Naperville, but will use only half as much electricity. DeSantis said in ...

When I was growing up in suburban California in the 1960s and ’70s, the world after dark was lit by warm incandescence and whitish mercury-vapor street light. Although the latter had a spectral ...

Mercury vapor released from broken compact fluorescent light bulbs can exceed safe exposure levels for humans, study finds Date: July 6, 2011 Source: Mary Ann Liebert, Inc., Publishers Summary ...

But municipal governments enthusiastic about energy-saving lighting have generally ignored the implications of color temperature. Now that mercury- vapor lights are being phased out be- cause of ...

Several dozen lights are being replaced at the center of town in Downers Grove. Crews are switching out nearly 70 mercury vapor lights near the parking lot and walkways at village hall and the ...

The exact hue depends on the mercury vapor pressure and usually contains a fair amount of ultraviolet light. These tubes have an interesting history dating back to 1901, the year [Peter Cooper ...