Articoli rivista
Anno XLI - n.4 - ottobre/dicembre 2008 Un gioco di P. A. M. Dirac
An ingenious and amusing activity originally devised by Dirac illustrates a topological symmetry property of the three-dimensional rotation of solids. Some mathematical aspects of this property and its relevance to the quantum physics description of fermions are explained. […]
Anno XXIII - n.1 - gennaio/marzo 1990 Un’idea per un trasduttore di temperatura
This article shows how students can be taught the concept of using a transducer to measure the temperature with a very simple electronic circuit in which a NTC thermistor acts as sensor. Only a basic knowledge of the main properties of transistors and thermistors is required. […]
Anno XXVIII - n.3 - luglio/settembre 1995 Un’indagine sulle preconoscenze dei ragazzi in merito alla struttura della materia
This paper presents the results of an enquiry on the ideas about Structure of Matter initially held by secondary school students. […]
Anno XXXVIII - n.4 - ottobre/dicembre 2005 Un’intervista a Einstein
Two weeks before Einstein died he was visited by a historian of science. They sat in Einstein’s study and discussed some of his illustrious predecessors in the evolution of physics. […]
Anno XXVI - n.3 - luglio/settembre 1993 Un itinerario didattico introduttivo all’insegnamento dell’ottica
We present a recently developed project for teaching optics to 14-15 year old students. Pointing out some shortcomings of the traditional approaches, we take into account the students’ common sense “preconceptions” investigated in various inquiries. The teaching pattern we propose is rooted in everyday experience and the aim is to answer immediately questions such as: “how can we see what we see?”. […]
Anno XLII - n.1 - gennaio/marzo 2009 Un laboratorio all’aperto
The article suggests an easily reproducible statistical procedure for searching natural phenomena for regularities. […]
Anno XXIX - n.1 - gennaio/marzo 1996 Un laboratorio di meteorologia nella scuola media dell’obbligo
The article is pertinent to a pluridisciplinary experience concerning the different meanings of the Italian word “tempo” which exact translation would be either “time” or “weather”. The experience has been conducted within a triennial program in the first class of a secondary school. […]
Anno XXXV - n.1 - gennaio/marzo 2002 Un meraviglioso paradosso elettromagnetico
A 40 W bulb lamp lights up although a thick copper is shorting its terminals. This paradoxical situation may help to stimulate curiosity and induce a critical attitude towards the parameters that must be taken in account when analysing electrical phenomena. […]