Why do street lights glow orange?
Orange street lights are common in most London boroughs. They certainly are where I live, about 1.5 miles from the river. The original [and existing] purpose of the orange street lights, is they can penetrate fog extremely well. I cannot remember the last time we had fog here, but you just never know, especially with the River Thames so close. This link below will explain the orange street lamp : – Sodium vapor lamp – Wikipedia, As a result they are widely used for outdoor lighting such as street lights … dark pink glow when first struck, and a pinkish orange light when warmed up. … http://www.en.wikipedia.org/wiki/Sodium_… The main drawback to the orange street lamp, which I only found out when I was called as a witness and was quite unable to be sure what colour top the guy was wearing who did the bad deed. So, case dismissed. Some London boroughs, I think Wandsworth, have already got rid of their ora