Articoli rivista
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 XXXVI - n.3 - luglio/settembre 2003 Una macchina elettrostatica… statica!
An E.H.T. generator which may be used in all experiments and demonstrations instead of the old fashioned electrostatic machines is described. It has none of the drawbacks of the old machines and its design gives special attention to the safety of the operator. […]
Anno XXXVII - n.4 - ottobre/dicembre 2004 Una misura del calore prodotto per attrito
This paper describes a simple method for measuring the heat developed by friction, in which a thermometer in used as a calorimetric device. […]
Anno XXV - n.2 - aprile/giugno 1992 Una misura della densità dell’aria
We describe, in this paper, a measurement of the density of air, using the equation of state for gases and Archimede’s law. […]
Anno XXIV - n.4 - ottobre/dicembre 1991 Una misura didattica del flusso di energia radiante
In this article radiant energy flux is measured referring the temperature of a small blackened body to the temperature of a similar reflecting body. The reliability of the method is checked using electric lamps of different power output. Then the apparatus is used for measuring the efficiency of a solar cell, […]
Anno XXXIII - n.2 - aprile/giugno 2000 Una misura semplice di π
A very simple experiment allowing to measure π is presented. No particular equipment or theoretical knowledge is required. The experiment could be performed during one of the first laboratory activities in a physics course. […]
Anno XXVIII - n.4 - ottobre/dicembre 1995 Una misurazione elettrolitica della carica dell’elettrone
A simple electrolytic experiment suited to students’ practical work allows to find an approximate value for the charge of the electron in a relatively short time and without having to make sensitive direct measurements of mass with 1 mg scales, not easily found in school labs. […]