Articoli rivista
Anno XXXI - n.1 - gennaio/marzo 1998 La fisica per…volare
Home-made one-stage, two-stage and three-stage water rockets were launched at an exhibit on “Physics for… flight”. The design details of the two-stage rocket are described. […]
Anno XXXVIII - n.2 - aprile/giugno 2005 La Fisica: scienza e linguaggio
An analysis of the character and structure of the physical description of the world starts by discussing a simple case of measurement in geometry. In the relationship between linear dimensions and surface extent of similar plane figures one can distinguish (i) a general part that does not depend on the particular figure and (ii) a numerical parameter that depends on the figure and on the linear element that is being considered. […]
Anno XL - n.4 - ottobre/dicembre 2007 La fisica su una giostra – Alcuni esperimenti significativi
A home-made little carousel is equipped for experiments on motion in a rotating frame. A Foucault’s Pendulum, a ball on a platform, water from a Coriolis fountain, an air puck are launched on the platform and the different perceptions of rotating and stationary observers are analyzed. […]
Anno XXXIX - n.3 - luglio/settembre 2006 La formazione di gocce nei liquidi in caduta libera
The narrowing of a falling stream of liquid is a well-known demonstration of the equation of continuity. We consider the behavior at the bottom of the stream where the stream swells and forms droplets. Drop formation is illustrated by detailed photos of experiments. […]
Anno XXXV - n.1 - gennaio/marzo 2002 La fotografia digitale nello studio della meccanica classica
The author describes an imaging method he uses in the physics lab in connection with experiments involving bodies in motion. The bodies are photographed with a good digital camera that allows long exposures. The resulting files are immediately loaded in a PC, […]
Anno XXXIII - n.4 - ottobre/dicembre 2000 La legge di conservazione dell’energia: applicazione al rotolamento con e senza strisciamento
The motion of common rolling bodies is a source of helpful hints towards understanding the properties of rigid bodies in general. In introductory courses dissipative phenomena are usually ignored, both at the highschool and at the university level. In this paper we analyse the role of friction on rolling and we show that the interplay between mechanics and thermodynamics facilitates understanding the behaviour of such systems. […]