Esther SchindlerMar 19
Denmark Just Switched to Red Streetlights By shifting the wavelength of the light, the city sought to maintain essential road safety for drivers while protecting the natural behaviors of local wildlife.

Denmark Just Switched to Red S...
Denmark Just Switched to Red Streetlights to Solve an Urban Crisis Most Modern Cities Still Ignore

Drivers in Denmark are facing a surreal sight as a primary corridor is suddenly bathed in an intense, unearthly red light.

The Daily Galaxy - Great Discoveries Channel
Show threadBrian Smith

@estherschindler.bsky.social

An interesting idea, I remember when we had orange streetlights (Low Pressure sodium) wonder if it has been tried anywhere else,

@RantyHighwayman have you come across anything like this

Mar 19 at 10:01pmWeb
Show threadBrian SmithMar 19

@estherschindler.bsky.social @RantyHighwayman

Also didn't ships used to use red lights inside the bridge at night, so that lookouts could keep their night vision.

Show threadHighlandLawyerMar 19
@BrianSmith950 @estherschindler.bsky.social @RantyHighwayman
I keep a red-light torch in my winter coat pocket for when out and about (rural area with almost no street lighting). Learned about it being better for preserving night vision way back when, when doing astronomy- in those days you put a red filter over an ordinary torch.
Show threadDe Tierende Struikrover6d ago
@HighlandLawyer @BrianSmith950 @estherschindler.bsky.social it's on the edge of my current knowledge, but I have heard the same as well