Articoli rivista

ultimo numero della rivista Anno XXIX - n.4 - ottobre/dicembre 1996
Cultura

I cambiamenti concettuali nella chimica dopo l’avvento della meccanica quantistica

Although the methods of quantum mechanics may be usefully employed in studying the physics of molecules, they are unable to solve some typical chemical problems such as predicting the outcomes of new synthetic processes. The reason for this is the lack of a satisfactory quantum mechanical description of the time evolution of transformation processes in complex systems. […]

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ultimo numero della rivista Anno XXIX - n.2 - aprile/giugno 1996
Didattica

I circuiti oscillanti accoppiati: un’analogia classica per spiegare la formazione delle bande di energia nei solidi

The splitting of the resonant frequencies of N oscillatory LC circuits interacting by the mutual induction between their coils is a classical analog for the formation of energy bands in the system of interacting atoms in a crystal lattice. This article describes how to carry out an experimental demonstration of this phenomenon. […]

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ultimo numero della rivista Anno XLVIII - n.1 - gennaio/marzo 2015

I crateri formati dalle meteoriti

A brief analysis of meteorites and their effects on earth is given. In particular, the paper focuses on the relationship between the energy of a meteorite fallen on the earth and the width of the crater. The reader will find a very simple experiment that simulates the fall of a meteorite and allows to measure energy and the diameter of the crater. […]

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