Articoli rivista
Anno XXVI - n.1 - gennaio/marzo 1993 Geometria dello spazio-tempo e paradossi relativistici
The classical skier paradox is revisited, with the aim of showing that a strictly geometric approach (i.e. one that makes no use of Lorentz transformations and the like) is more apt at revealing the true nature of the physical problem being studied. […]
Anno XLII - n.2 - aprile/giugno 2009 Giochi di equilibrio
Equilibrium is an obvious topic in physics: it is interesting, not too difficult and it has many applications. But, as quantitative experiments are few, it is not always presented in lab sessions. The paper presents a variety of devices on which a problem solving oriented session might be based. […]
Anno XLIII - n.2 - aprile/giugno 2010 Giochi ed esperimenti con le bottiglie di plastica
Some simple low cost demonstrations using plastic bottles of mineral water are reported. The experiments explore the pressure and weight of gases, Archimede’s law, gases dissolved in water, the Cartesian diver and other phenomena. […]
Anno XXVIII - n.2 - aprile/giugno 1995 Giorno solare vero e giorno solare medio: misura del tempo con una meridiana
Because of the change of Earth’s revolution velocity, true solar time shows small periodic fluctuations compared with mean solar time, measurable with watches. Studying the Earth’s motion we can calculate this time difference (known as the equation of time) and moreover we can understand how sun-dials marking true solar time work. […]