Articoli rivista
Anno XLII - n.1 - gennaio/marzo 2009 Un laboratorio all’aperto
The article suggests an easily reproducible statistical procedure for searching natural phenomena for regularities. […]
Anno XXIX - n.1 - gennaio/marzo 1996 Un laboratorio di meteorologia nella scuola media dell’obbligo
The article is pertinent to a pluridisciplinary experience concerning the different meanings of the Italian word “tempo” which exact translation would be either “time” or “weather”. The experience has been conducted within a triennial program in the first class of a secondary school. […]
Anno XXXV - n.1 - gennaio/marzo 2002 Un meraviglioso paradosso elettromagnetico
A 40 W bulb lamp lights up although a thick copper is shorting its terminals. This paradoxical situation may help to stimulate curiosity and induce a critical attitude towards the parameters that must be taken in account when analysing electrical phenomena. […]
Anno XXXIV - n.2 - aprile/giugno 2001 Un metodo dinamico per la determinazione della costante dielettrica di un liquido
In order to find the dielectric constant of an insulating fluid the authors measured the resonance frequency of a parallel plate capacitor that had the fluid as dielectric. The results show that the method is suitable but some improvements are needed to increase the experimental sensitivity. […]
Anno XLVII - n.1 - gennaio/marzo 2014 Un metodo per misurare la velocità del suono 2
A simple experiment for measuring the velocity of sound in air using two hollow metal cylinders, a microphone and a digital oscilloscope is described. Knowing the distance between microphone and cylinders the velocity of sound is easily computed by measuring the time interval between banging them together and the microphone’s reception of the sound. […]
Anno XXXII - n.2 - aprile/giugno 1999 Un microfono on-line per “vedere” la riflessione del suono in un tubo per “sentire” l’accelerazione di gravità
On-line data acquisition systems have disclosed new possibilities for teaching physics laboratory. A cheap and easy apparatus, as the one here described, allows to easily perform interesting experiments or to re-design old experiments making them suitable for schools that have no laboratory, […]
Anno LVI - n.3 - luglio/settembre 2023 Un modello esponenziale per l’attenuazione della luce
It is empirical evidence that some substances absorb light radiation by transmitting only a fraction of it. The reduction in the intensity of light transmitted through a medium seems to depend on the thickness of the substance. However, in what way? […]
Anno XXXV - n.3 - luglio/settembre 2002 Un modello fisico: il lago ghiacciato
We have created and studied a model of the cooling and freezing dynamics of a lake when outside temperatures are below 0 ºC. […]