Articoli rivista
Anno XXIX - n.3 - luglio/settembre 1996 La potenza della suggestione
About one hundred physics textbooks have been examined in this article to research the answer given to a simple question of hydrostatics shown in fig. 1. The number of wrong answers turned out to be surprisingly high. […]
Anno XXVIII - n.1 - gennaio/marzo 1995 La pressione
The concept of pressure should be easy to understand; despite that, I’ve found frequent misunderstandings in students, teachers, and books. Is this quantity related to interaction or to the state of a system? Is it a vector, or scalar (or tensor) quantity? […]
Anno XXIV - n.3 - luglio/settembre 1991 La pressione della luce
The idea that light produces pressure evolved through a series of adoptions and rejections, from the hypothesis of Newton to the experiment of Lebedev, depending on the theory used to describe the nature of light. This article reviews the history of this development. […]
Anno XXIV - n.4 - ottobre/dicembre 1991 La propagazione rettilinea della luce: una unità didattica per la scuola media
This is a detailed report of the study of the basic properties of light propagation with a middle-school class of 12 year pupils. It required about 20 hours of classroom time. The pupils performed experiments on the linear propagation of light and on the reflection on plane and concave mirrors using simple apparatus. […]
Anno XXXIX - n.2 - aprile/giugno 2006 La proposta di riforma Boselli e l’insegnamento della fisica
A law involving science curricula, proposed about one century ago, is analysed and its modern and still valid interpretation of science teaching and of the relationship between school education and the productive world is highlighted. […]
Anno XXIX - n.2 - aprile/giugno 1996 La radio a cristallo
After describing the working principles of the crystal radio, the author puts them into practice designing, assembling and testing a simple radio system. Didactic suggestions are given. […]
Anno XLV - n.3 - luglio/settembre 2012 La radio a cristallo: un progetto e una ricerca
The so called crystal radio is a simple receiver that can generate strong interest and emotions. Starting with the improvised ‘Blue Gillette blade’ detector used in the mythical ‘foxhole radios’ by the American soldiers during WWII, we explore some new and unusual detectors that can be assembled ‘in the kitchen’. […]