[time-nuts] [OT] Ikea Lamp
Magnus Danielson
magnus at rubidium.dyndns.org
Sun Jan 31 15:10:48 UTC 2010
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
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