Articoli rivista
Didattica
Anno LIV – n.3 – luglio/settembre 2021 A Caccia di Spettri I. Costruiamo uno Spettroscopio con uno Smartphone
Home-made spectrometers, based on the use of inexpensive diffraction gratings and a smartphone camera, can be assembled and employed to perform quantitative measurements of spectra from different sources with surprising accuracy. In this paper, we describe some different home-made spectrometers and discuss the calibration procedures and other technical details to perform the measurements. […]
Anno LIV – n.3 – luglio/settembre 2021 A Caccia di Spettri II. Atomi, Stelle e Colori
Home-made spectrometers, presented in the previous work, can be used to perform experiments that address some relevant and engaging topics in Physics. In this paper we will first show some accurate measurements of the spectral lines of discrete spectra, enabling us to accurately determine the Rydberg constant and the wavelength separation of sodium. […]
Anno XLIII - n.1 - gennaio/marzo 2010 A che altezza si formano le nuvole?
A thermodynamical model of how the formation, uplift and height of clouds depends on ground temperature and relative humidity is described. […]
Anno XLVIII - n.1 - gennaio/marzo 2015 Acustica in cucina
The paper presents three simple acoustic experiments carried out using a smartphone and some objects available in any kitchen. […]
Anno XLIII - n.4 - ottobre/dicembre 2010 Alcune applicazioni terapeutiche del laser in oftalmologia
After an introduction on the shape and function of the cornea, this paper describes some applications of infrared and ultraviolet lasers in eye surgery for correcting its curvature and for treating some diseases of the retina. […]
Anno XXXI - n.2 - aprile/giugno 1998 Alcune considerazioni didattiche e tecniche sull’uso del V-Scope
In this paper we present and discuss some of the results on the calibration of the V-Scope data-acquisition system. In particular we evaluate the total uncertainty in V-Scope based measures. Analyzing by V-Scope measurments the dynamic of a simple and double pendulum we show for the last the first space phases boundary of non linear resonances. […]
Anno XXVI - n.3 - luglio/settembre 1993 Alcune proposte di utilizzo della telecamera e del videoregistratore nel laboratorio didattico di fisica
This article, after examining advantages and disadvantages of the traditional use of cameras in physics laboratories at school, deals with the main characteristics of modern videocameras and VCRs; it also suggests a few applications of the relevant techniques which can be useful for classroom activity. […]
Anno XLVII - n.2 - aprile/giugno 2014 Alcuni paradossi
We suggest four paradoxes that can be proposed to high school students as problems, asking them to search for possible solutions. Unlike the usual physics problems and exercises, in a physics paradox the crime is clear but solving it might be, […]
Anno XXV - n.4 - ottobre/dicembre 1992 Allestimento di una piccola stazione meteorologica dotata di psicrometro on-line
A simple meteorological station, connected on-line to a personal computer, was used by first-year students of physics at the University of Bologna. It gave the students the opportunity to: (i) work with an example of a technologically up-to-date system for data acquisition, […]
Anno XXVIII - n.1 - gennaio/marzo 1995 Analisi della velocità di propagazione di un impulso termico trasmesso per conduzione in un metallo
In this paper we are dealing with the phenomenon of propagation of a thermal pulse in solid metals. We are comparing results drawn from a mathematical model with data measured by connecting temperature probes to a computer on-line. […]