James Dyson spent 15 years and built 5,127 prototypes in developing the Dual Cyclone vacuum cleaner. Lucky!
Dual Cyclone Persistence
Apr 16th, 2009 by Jason Bresnehan
Strategies and tactics to get lucky in business and in life
Apr 16th, 2009 by Jason Bresnehan
James Dyson spent 15 years and built 5,127 prototypes in developing the Dual Cyclone vacuum cleaner. Lucky!