A problem too often overlooked is how the yellow-tinted light of high-pressure sodium (HPS) fixtures, which are typically found lighting streets and some parking lots, impacts your perception of the ...

And it will have taken about eight years in all to swap out all of those old-style streetlights across Mankato with high-efficiency LED lights. It was the summer of 2017 when a private electrician ...

Here’s how astronauts see us, or at least used to, back when we had astronauts: That’s set to change, at least a bit, as the city rolls out 16,300 ceramic metal halide street lights with the help of ...

You are able to gift 5 more articles this month. Anyone can access the link you share with no account required. Learn more. Kennebunk citizens may not be aware that the town has been on a program to ...

Rick Newman's backyard in east Boca Raton has that Old Florida vibe: A swimming pool is surrounded by live oaks and palms. For years, the trees' lush canopy has kept the area shaded against the sun, ...

The new LED lights cost about the same as the old high-pressure sodium lights but will last about 15 to 20 years. Years in the making, the warm glow of brighter streetlights are finally flickering on ...

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A University at Buffalo-led study analyzes the chemical binding behind sodium's transformation from shiny metal to transparent insulator under high pressure. Photo: Dnn87, Creative Commons Attribution ...

To continue reading this content, please enable JavaScript in your browser settings and refresh this page. Think back to mixing primary-color paint in grade school ...