Articoli rivista
Anno XLV - n.1 - gennaio/marzo 2012 Quanta energia è irradiata scaricando un condensatore?
Reasoning on what happens when connecting two charged capacitors suggests a general procedure for evaluating the energy associated with the propagation of electromagnetic waves. […]
Anno XXVIII - n.2 - aprile/giugno 1995 Quanti sono gli elettroni di conduzione nei metalli?
We test experimentally the free electron gas model for electric conduction in metals by means of measurements of the Hall coefficient. Full details for the construction of the experimental apparatus are given. […]
Anno XXXI - n.4 - ottobre/dicembre 1998 Quantizzazione della conduttanza in contatti d’oro unidimensionali
Using a very easy experiment, conductivity quantization can be observed. In this way quantum mechanics becomes something students can also experiment. […]
Anno XXIV - n.4 - ottobre/dicembre 1991 Quattro masse e una bilancia
The article presents the solution of an old problem about a pair of scales, known to be inaccurate, and four unknown masses. […]
Anno XLV - n.2 - aprile/giugno 2012 Quei testi dell’Apocalisse. Legge dell’apprendimento iperbolico
In recent years the knowledge levels in science of freshmen dropped constantly in Italy and in other countries. This might be because the excess of information in today?s secondary school textbooks makes identifying and mastering the important concepts difficult. Results found by different groups that examined pre-university textbooks in a number of different countries are reported. […]
Anno XXXV - n.4 - ottobre/dicembre 2002 Radiografie fatte con un orologio
Beta and gamma rays are able to penetrate into solid bodies. This property of radioactivity can be verified in a very simple and efficacious manner, making an experiment, even in a school laboratory, with poor matter. […]
Anno XXVIII - n.3 - luglio/settembre 1995 Rappresentazione grafica delle incertezze sui dati sperimentali mediante l’uso del foglio elettronico LOTUS 123
This article deals how to represent the experimental data with their absolute error with Lotus 123 […]