Articoli rivista
Anno XXX - n.3 - luglio/settembre 1997 SFM: Microscopia a scansione di forza
A brief introduction to scanning probe microscopes and electron scanning microscopes is followed by a description of the scanning force microscope operating principle, of its performance and limits; some SFM images of semiconductor samples are shown as examples of the potentialities of this technique. […]
Anno XXVII - n.1 - gennaio/marzo 1994 Migliorare l’insegnamento valutandone l’efficacia
The article is an introduction to Prof. Wilkinson’s paper which is published in this same issue. It discusses the writing of questionnaires to find out how students evaluate their classroom situations, and briefly compares the international and Italian researches in this field. […]
Anno XXXIX - n.1 - gennaio/marzo 2006 Miopia in età scolare e visione da vicino
This work considers the experimental evidence of the eye growth from visual signals. There is presented an eye model in which both the power of the lens and the distance lens-screen can be varied in order to show the accommodation and the elongation that the eye would become because of continual near vision. […]
Anno XLI - n.1 - gennaio/marzo 2008 Misura del momento d’inerzia di un libro
The relationship between the moment of inertia of a body and its period of twisting oscillation was studied in the classroom by suspending a book, in three different orientations according to its symmetry axes, to the edge of a table with a length of tape. […]
Anno XXVI - n.2 - aprile/giugno 1993 Misura dell’accelerazione di gravità con un semplice dispositivo on-line
This paper describes a measurement of the acceleration due to gravity done using a simple device connected to a computer on line. […]
Anno XXVII - n.1 - gennaio/marzo 1994 Misura della circonferenza terrestre col metodo di Eratostene.
This article describes an experiment done by first-year secondary school pupils, who measured me radius of the Earth with the method of Erathosthenes. For this purpose, cooperation was sought for and put into effect on long European distances, ranging from the island of Pantelleria in the Mediterranean to Goteborg in Sweden. […]