Steve Rooke wrote:
Not wishing to push this O/T thread more O/T but coming from England, and now in New Zealand, we have these sodium streetlights which I think are a pain in the neck. They have only two narrow spectra of yellow light and although they produce light it makes it hard, if not impossible, to make out colours. I wonder if they are being used in other members countries?
Sweden has them. It's the classical sodium D1 and D2 lines. Kind of neat that one can calibrate ones spectrometer by the highway. :)
I think white is becoming more popular now. Cheers, Magnus _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
