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These outdoor heaters are stupid and a waste of electricity (lemmy.world)
submitted 7 months ago by to c/justpost@lemmy.world
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They are in front of the elevators at an outdoor multi story parking garage around my area. That's all I wanted to share, thanks.

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[โ€“] 2 points 7 months ago (1 child)

Im wondering how large a phased array of infrared sources would be

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  • [โ€“] 1 point 7 months ago

    Given that they have to be a distance apart relative to the wavelength they're emitting, I'd guess about 10 times larger than a single emitter with the same output. However, because it's able to create beams with cross-sections similar to the profile of its targets, I'd argue it could just have a lower output and resolution with similar performance to a single emitter for half that. Those are wild guesses. Hopefully an engineer is lurking around here somewhere.

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