Risultati della ricerca
Anno XXXII - n.1 - gennaio/marzo 1999 Comunicazioni in rete telematica e costruzione collaborativa di concetti scientifici: le precipitazioni atmosferiche
In this paper we present some of the results of a research project, carried on since 1990, to evaluate the potentiality offered by the new information and communication technologies, to the innovation of science teaching (physics in particular) in school. Eight Italian middle school classes, […]
Anno XXXII - n.1 - gennaio/marzo 1999 Risoluzione di problemi aperti in Fisica come piccole ricerche
As we realized after a detailed monitoring that students can easily get lost in solving problems of physics, this article propose a new didactic tecnique .nearer to the researcher work whose purpose is to stimulate students to sustain their interest in physics, […]
Anno XXXII - n.1 - gennaio/marzo 1999 Joule e l’equivalente meccanico del calore: tra storia della fisica e didattica
After the introduction of Joule’s work, his paddle wheel experiment is analysed. The conceptual simplicity of this experimental apparatus makes itself a useful didactic model. Therefore its reproduction, the execution of the experiment and the possible didactic purposes will be described. […]
Anno XXXII - n.1 - gennaio/marzo 1999 Le influenze lunari e la nascita dei bambini
The widespread idea that the moon affects the number of births at full moon. fewer births at new moon – is not supported by any fact. A survey on births at the cities of Padua and Venice during the year 1996 shows no correlation whatsoever between moon phases and birth rates. […]
Anno XXXII - n.1 - gennaio/marzo 1999 La fisica dei fumetti
In this paper three examples are reported about the presence of physics in comics: a proposal to increase youth’s interest towards scientific subjects. […]
Anno XXXII - n.1 - gennaio/marzo 1999 Membrane saponose e loro tensione superficiale
Soap bubbles and soap films are interesting and amusing. This article describes an experiment on soap films which can be used at secondary school level that involves forming a film with the shape of a deformed quadrilateral in an area bounded by two rigid straws and two pieces of thread of equal length attached to their ends (Fig. […]
Anno XXXII - n.1 - gennaio/marzo 1999 Una lampada al sodio di basso costo
Low pressure discharge lamps, filled with mercury or sodium, are commonly used for highways and tunnels illumination, especially against fog. A simple, low cost, monochromatic light source may be obtained by means a sodium lamp of this type. […]
Anno XXXII - n.1 - gennaio/marzo 1999 I problemi orali di Fisica della Scuola Normale Superiore di Cachan (Francia)
In 1998 a book was published in which some physics problems from oral admission examinations at Ecole Normale Sup6rieure in Cachan (France) were collected. These are all problems dealing with physical phenomena of our daily life, used to investigate the ability of candidates in constructing a good model of different physical situations. […]
Anno XXXI - n.4 - ottobre/dicembre 1998 Sul concetto di tempo: breve percorso storico alla luce delle attuali conoscenze di astronomia e di cosmologia
We show how since the first human rational speculation the concept of infinite has dominated the time and how the peculiarities with which it has been considered have been modified in the same time that the astronomical researches have become deeper. […]
Anno XXXI - n.4 - ottobre/dicembre 1998 Blu del cielo e realtà degli atomi
After having worked on the evolution of the theories regarding why the sky is blue, a series of experiments is presented in order to make the phenomenon of light scattering easily understandable to students and to provide a possible teaching sequence on the topic. […]
Anno XXXI - n.4 - ottobre/dicembre 1998 Determinazione della retta di regressione nel caso di incertezze su entrambi le variabili
The article describes a numerical method to determine the parameters of the linear regression when are present errors in both coordinates. […]