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Street sweepers violently scrub asphalt using rotary brushes
HERE’S THE INTERESTING PART
Public works departments employ gigantic street-level toothbrushes to conquer litter. These hulking vehicles use stiff bristles arranged on spinning vertical discs to aggressively whip debris out of the gutters. The trash is then shoved into a central cylindrical broom that furiously flings it upward onto a conveyor belt, effectively eating the city's mess.
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