Meet James Dyson: The inventor who failed 5,127 times before building a $20B empire

PC: BBCSir James Dyson is widely recognised for changing the way people think about household appliances, though the idea that built his company did not arrive in a sudden flash of inspiration. It emerged from a practical irritation that many people had simply accepted. Frustrated by a vacuum cleaner that steadily lost its suction, Dyson began wondering whether the problem could be solved differently. That question led him into years of trial, redesign and repeated disappointment before he produced a machine that worked the way he believed it should.The process became far longer than anyone might have expected, stretching across thousands of experiments rather than a handful of sketches. Looking back, Dyson has often described those years not as a story of persistence alone, but as an exer