I miss the sodium lamps. They were being transitioned out during my university years. First year all the lights on campus were that cool, single frequency yell

I miss the sodium lamps. They were being transitioned out during my university years. First year all the lights on campus were that cool, single frequency yellow, by senior year there was just one, stuck in a lonely corner of campus, buzzing it's familiar call. I think the single emission spectra was a big part of the appeal. The complete lack of color left things somewhat eerie, but in a distinctly nonthreatening way. Just an alien peace.