Articoli rivista
Anno XXIX - n.2 - aprile/giugno 1996 La scoperta della superfluidità
Superfluidity and superconductivity have strong analogies to each other. Why then did over a quarter of a century passed between the discoveries of these two phenomena? […]
Anno XXVI - n.3 - luglio/settembre 1993 La sedia di Piekara, un modello meccanico dei livelli energetici degli atomi (Traduzione da The Physics Teacher, vol. 29, n. 4, Aprile 1991 a cura di Silvia Pugliese Jona)
Piekara’s Chair is a macroscopic, classical model useful for explaining several atomic physics concepts and phenomena such as energy levels, spontaneous and stimulated emission, absorption and Boltzmann statistics. In this article the Model is described and possible classroom uses are suggested. […]
Anno XLII - n.1 - gennaio/marzo 2009 La serendipità nella scoperta dei raggi X e della radioattività
At the end of 1895 Röntgen discovered x-rays while investigating cathode rays; in 1896 Becquerel was searching for penetrating radiations similar to x-rays when he found the uranium rays (radioactivity). The stories of both discoveries are briefly outlined and analyzed and the role of serendipity is discussed. […]