However, on a technical level, the project was tailor-made for his subjects, so he had no hesitation in transferring it to them. It was certainly more laborious than the usual school exercises that only serve to test whether one knows how to distinguish between a locomotive and a coffee pot, without caring if he then pretends to make coffee with the locomotive and attach the train to the coffee pot. Instead, that was exactly what he wanted from his pupils: designs of the coffee pots so that they could make coffee, and of locomotives suited to pull trains. It is difficult, since you need to know not only the lesson of the day, but also all the ones before, and to know how to combine fire, water, metal and coffee now in a locomotive, and now in a mocha pot, but it is what you need, and with
