Risultati della ricerca
Anno XXXVII - n.2 - aprile/giugno 2004 La “bottiglia zampillante” di Anacleto 2003
Every year the Olympiad Group of the Association for the Teaching of Physics suggests to high school students a non-competitive physics test, the ‘Anacleto Games’. The test consists in answering a series of questions and making an experiment. Although the activity is suggested at a very elementary degree, […]
Anno XXXVII - n.2 - aprile/giugno 2004 Fontanella fotovoltaica
A ‘photovoltaic fountain’ uses solar energy to drive a water pump. The nature of the energy source is made evident by the immediate response of the height of the water jet to changes in the intensity of the sunlight. […]
Anno XXXVII - n.1 - gennaio/marzo 2004 Collaborazione di ricercatori europei sulla preparazione degli insegnanti
Researchers in Science Education co-operate, within the thematic network STEDE (Science Teacher Education Development in Europe), in comparing how teachers are prepared in different institutions and in contributing to improve teacher education. The work dealing with the first point is presented by reporting the documents prepared in some of the participating institutions. […]
Anno XXXVII - n.1 - gennaio/marzo 2004 Una trattazione unitaria difenomeni “diversi”: il caso del modello esponenziale
This paper reports a teaching approach to physics, developed for high schools and pre-service teachers formation courses, focused on modelling physical phenomena described by similar mathematical equations in different fields of physics. We start by analysing the phenomena and finding the relevant physical variables. […]
Anno XXXVII - n.1 - gennaio/marzo 2004 La fisica ingenua resiste
Examples derived from a physics teacher’s experience are offered, that confirm previous well documented knowledge about the persistence of ‘common sense’ representations of physical phenomena in students. The needs to modify the approach to teaching physics and to revise its sense and aims are then discussed. […]
Anno XXXVII - n.1 - gennaio/marzo 2004 Le due definizioni di rendimento termico
In a previous paper, the same author showed that the usual definition of thermal efficiency of heat engines becomes intrinsically ambiguous when applied to cycles in which the system exchanges heat in both senses with the same thermal reservoir, and proposed two ways in which (in order to resolve this ambiguity) the elementary definition can be precised, […]
Anno XXXVII - n.1 - gennaio/marzo 2004 Modello di occhio nell’insegnamento dell’ottica
A simple eye model having a structure very similar to a real eye is described. The model allows students to understand geometrical optics in a biological context. […]
Anno XXXVI - n.4 - ottobre/dicembre 2003 La cura delle metastasi epatiche diffuse mediante il metodo TAOrMINA
TAOrMINA (Advanced Treatment of Organs by Neutronic Irradiation and Autotransplantation) is a technique developed at the University of Pavia for treating diffuse cancer in explantable organs. Neutron capture is the most selective among the treatments based on irradiation. First the affected cells are enriched in 10B, […]
Anno XXXVI - n.4 - ottobre/dicembre 2003 Dal radar alla risonanza magnetica nucleare
A brief report of the history of the discovery of Nuclear magnetic resonance, which underlines the important effect on the post-war world physics in the field of the basic research work on microwaves and electronics done at the MIT ‘Radiation Laboratory’. […]
Anno XXXVI - n.4 - ottobre/dicembre 2003 Chirurgia acustica
Bursts of focused ultrasound energy three orders of magnitude more intense than diagnostic ultrasound are emerging as a noninvasive option for treating cancer and other medical procedures. […]