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It took four years and 5,127 prototypes for Sir James Dyson to create the first cyclone vacuum cleaner. Today his company is worth over $5bn. In today's episode, The Disrupters comes out of the studio and into a semi-anecoic chamber in the secretive Dyson Institute of Engineering and Technology, to meet one of Britain's foremost inventors. He talks about why trying something new, even at the risk of failure is so important, and why passion is the most important reason to start a business. Presenters: Kamal Ahmed and Rohan Silva Producer: Georgia Catt