Articoli rivista
Anno XXXIV - n.1 - gennaio/marzo 2001 Le code delle comete: effetto delle forze di radiazione
The combined effects of the Sun’s gravitational attraction and of the pressure of radiation allow to calculate the maximum dimensions of electrically neutral dusts in one of the tails of a comet. […]
Anno XXXVII - n.1 - gennaio/marzo 2004 Le due definizioni di rendimento termico
In a previous paper, the same author showed that the usual definition of thermal efficiency of heat engines becomes intrinsically ambiguous when applied to cycles in which the system exchanges heat in both senses with the same thermal reservoir, and proposed two ways in which (in order to resolve this ambiguity) the elementary definition can be precised, […]
Anno XXV - n.2 - aprile/giugno 1992 Le forze sono sorelle gemelle?
This article analyses notorious problems concerning Newlon’s third law against the historical background. A proposal is made to reformulate this law by substituting the term ‘interaction’ far ‘action’ and ‘reaction’. […]
Anno XXIV - n.4 - ottobre/dicembre 1991 Le giornate “Informatique et Pedagogie des Sciences Physiques” in Francia
Information about the French biennial Conferences on Computers in physical science teaching. […]