How important is blowing

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Unilever introduced a soap packaging production line, only to discover that this line had a flaw: soaps were often left out of the boxes. They couldn’t possibly sell empty boxes to customers, so they had to hire a postdoctoral researcher in automation to design a solution for sorting out the empty soap boxes. The postdoctoral researcher assembled a research team of over a dozen people, and by combining techniques such as mechanics, microelectronics, automation, and X-ray detection, and investing hundreds of thousands of dollars, they successfully resolved the problem. Whenever an empty soap box passes by on the production line, the detectors on either side detect it and activate a robotic arm to push the empty soap box away. 　 　A township enterprise in southern China also purchased the same production line. When the owner discovered this problem, he became furious and told a worker, \"Fix this shit for me, or get the hell out of here!\" The worker quickly came up with a solution: he placed a ceiling fan next to the production line and turned it on at full speed, so that the empty soap boxes would be blown away. This story tells us how important it is to be able to blow.