According the writers and historians Luca Antoccia and Carlo Pedretti "Leonardo can boast of having had an indisputable primacy, which places him at the head of the beginnings of modern scientific illustration, indeed, no ...

The project theorists emphasize the importance of the instruments and tools applicable to it, so the so-called systemic ones such as Hubka and Eder in their "Theory of Technical Systems" specify the need of knowing the ...