Scientists have invented a 'smart' spray-paint can system that robotically reproduces photographs as large-scale murals, simply by being waved around a giant canvas. Scientists have invented a 'smart' ...
Towering over the eastern Estonian city of Tartu is a lean chimney stack that features a 98-foot-tall mural of a girl holding a potted plant in her cupped hands. The image required 14 hours of labor ...
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