image credit: IBRoomba cc
Introduced in 2002, Roomba is a series of autonomous robotic vacuum cleaners sold by iRobot. Under normal house conditions, the Roomba is able to autonomously vacuum the floor while navigating a living space and avoiding obstacles.
Roombas come equipped with color-changing LEDs that indicate remaining battery power and dirty spots. The LED lights combined with a seemingly random cleaning path has led some intrepid photographers to take long exposure photographs. The results, a kind of 'light painting' are mesmerizing.
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