And thanks to your history teacher they may well think that ever idea one could think of could be (A) taken to an existing manufacturer, and (B) could be put into production despite being rejected by all and sundry.
James Dyson is a chapter of history in itself. He had so much self belief in his invention that was determined to do whatever it took to get it to where he believed it would be. He took a gamble of immeasurable dimensions, and of course as we know, it paid off.
However, what often gets lost in translation is that the Dyson story is the exception to the norm, and whilst it was James Dyson's self-belief and determination which got the cleaner into production, he was 'lucky' if I may call it that, that his invention was an improvement on an almost consumable, everyday object owned by practically every householder countrywide. This, added to the fact that vacuum cleaners had seen few dramatic changes since their invention (and what changes were made were subtle and phased in gradually), meant that consumers were hungry for a drastic change -any change at all.
With their brand-new 3-in-1 cleaner, Vax had dipped their toes in the water already so far as bold changes went, targeting those who liked a change and / or a gimmick. They had been so very successful, but the thrill of their cleaners was finite because as time progressed it became clear to consumers that the ability to wash their carpets was not quite the adventure they had thought it might be. By the time Dyson cleaners were really getting noticed, a lot of Vax owners were getting ready to change their vacuum cleaner for a new one, and in my mind I will always believe that Dyson owes a lot of it's sales to the Vax story. His [Dysons] timing was impeccable.
But the difference between Vax and Dyson is that Vax continued to be just a manufacturer of finished goods, where as Dyson has gone on to become a cult, or, as I do believe it to be known in today's world, a 'brand'. Dyson says it is because their products are the best, that they perform better, and have all the modern technology and research lavished upon them. What he never says, of course, is that there is a whole load of clever marketing going on too. You only have to look at the build quality of a Dyson and then look at the price tag to see they've managed to achieve what few others can; a below average quality product which works well and sells for the highest price possible. Twenty years ago a cleaner with plastic tubes was considered to be leaning on the lower end of the market. Dyson has turned that point alone on it's head.