It took James Dyson 15 years and 5,127 prototypes to develop the first bagless cyclonic vacuum.
15 years and 5,127 prototypes!
For my latest newsletter, I wrote about Dyson’s long journey and related stories on persistence. trungphan.substack.c…
https://nitter.moomoo.me/TrungTPhan/status/1629892194499981312#m