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 ...

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 ...

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 ...

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 ...

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 ...

Last week, we took a look at fluorescent lighting, which is dramatically reducing our energy use for illuminating indoor spaces. This week, we'll cover mercury vapor lighting, which is the most common ...

While the national government doesn't require fluorescent light packaging to prevent mercury vapor release, several states have addressed this health issue with their own, more specific ...

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 ...