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Dec 20, 2021, 5:36 pm192 pts
Streetsblog
If a bureaucrat invited the citizenry to listen to a short lecture about about photocells, the light-detecting sensors that tell streetlights when it’s time to switch on of off, you might not expect many takers. But at the end of November, the City of Boston did just that, with a two-minute clip that launched…
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