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fdgjgbdfhgb | 2 years ago

All street lamps in Paris turned off at midnight :)

https://www.leparisien.fr/paris-75/paris-pourquoi-les-rues-d...

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Cyberdog|2 years ago

The street lights use some sort of timer that's tracking dates? Don't they typically just use light sensors to know when to turn on? It seems to me that'd be a simpler solution and also provide light during solar eclipses, thick storms, etc.

anonymfus|2 years ago

First, these systems generally predate invention of semiconductor light sensors.

Second, how much light you need is proportional to human activity, not only to darkness. At deep night artificial lighting should be minimal to save energy, minimise disturbance to nature and people's sleep, while during early morning when kids go to schools it should be maximal.

Third, you need a central control over street lights anyway because you need to implement blackouts during wartime.

iforgotpassword|2 years ago

Why should we pick a simple solution like that? Is it the 90s or what? Only a complete clown would pick anything other than a network of zigbee relays controlled by an unmaintained node.js app written by an out-of-business contractor, pulling in sunrise/sunset data from an external API and syncing its local time via a homegrown NTP alternative.

I mean look at electric cars.

aussieguy1234|2 years ago

Finally, night time photography without the street light pollution.

blahedo|2 years ago

Oh! The street lamps on my campus didn't come on tonight when it got dark—it didn't occur to me then but this could totally be why.

WarOnPrivacy|2 years ago

Improved nighting is an awesome gift. I'm jealous.

alickz|2 years ago

The City Without Lights