The paper deals with the evaluation of the Fukushima-Daiichi Nuclear Power Plant (NPP) accident in Units 1 to 4: an attempt is made to discuss the scenario within a technological framework. considering precursory documented regulations and predictable system performance. An outline is given at first of the NPP layout and of the sequence of major events. Then. https://www.nuovoitaly.com/product-category/cultural-art/