It was created by the Pohang Institute of Intelligent Robotics in South Korea. The robot is really two units, which hold to each other and the window using neodymium magnets. The magnets are powerful enough to hold through 0.98-inch (25mm) thick windows. [MBC News (translated) via Plastic Pals]
Spider-Roomba Climbs Windows, Cleans Both Sides
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European cities like Paris are much, much older than American cities like New York, and that age difference has led to many interesting differences in the layout of each city. For example, the wealthy population of America often live in suburbs away from the city while in Europe, the rich live inside the city. Why is that?