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The Hidden Tool That Stops Street Camping ”Blue Chirper” is a solar-powered sound device designed to discourage overnight camping in public areas. Installed on buildings or street fixtures, it emits high-pitched chirping noises at regular intervals—inaudible to many adults but unpleasant enough to gently encourage people to move along. Ideal for cities looking for non-aggressive ways to manage loitering in busy zones. Credits: @ StephenMcMahon-s9k / YT @ bluechirper / IG #tech #technology #engin
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The Blue Chirper is a genius audio invention!
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A Denver apartment building has installed the city’s first Blue Chirper — a device that flashes blue strobe lights and plays cricket-like sounds to deter loitering and encampments outside Curtis Street Lofts. The Ballpark district has already seen anti-homeless measures like spikes, planter boxes, and parking blocks, making the Blue Chirper the latest example of so-called “hostile architecture” in Denver’s urban core. Does this sound like a deterrent or a sleep machine? Clearly it has to be a so
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