Articoli rivista
Cultura
Anno XXXII - n.3 - luglio/settembre 1999 Quando la termodinamica incontra la meccanica: bilanci energetici di oggetti in movimento
In the study of subjects at the borderline between Thermodynamics and Mechanics, typical aspects of one of the two sciences are sometimes overlooked and incomplete, contradictory or partially erroneous descriptions are given. We find this type of difficulty in situations where there are objects in motion and, […]
Anno XLIX - n.1 - gennaio/marzo 2016 “Relatività”: le insidie di un nome
The name “relativity theory” was an unfortunate choice and Einstein was unhappy about it.Some critical aspects are briefly discussed about use and misuse of that name in epistemology, in popular culture and within the philosophical debate of the time in Italy […]
Anno XLVI - n.4 - ottobre/dicembre 2013 Scienza, Nanoscienza, Fantascienza
The term “nanoscience” is explained and illustrated by examples that can help to understand its scope and its importance for everyday life. […]
Anno XLVIII - n.1 - gennaio/marzo 2015 Sfaccettature dello spazio-tempo nella relatività generale: il calcolo di Regge
One of the most innovative and fruitful contribution to theoretical physics by Tullio Regge (1931-2014) is presented. Known as “Regge Calculus”, it consists of a formulation of the General Relativity developed in the celebrated paper “General Relativity without Coordinates”, published in 1961 in the Nuovo Cimento. […]
Anno XXXII - n.1 - gennaio/marzo 1999 Spazio, geometria e fisica. Un contributo ancora attuale di Federigo Enriques
In this paper the author describes Enriques’ ideas on the concept of space and on the relations between geometry and physics. Enriques criticized the views of Kant and Poincare, considered geometry as an empirical science and anticipated some aspects of recent Popper’s epistemology. […]
Anno XXVII - n.2 - aprile/giugno 1994 Storia di una goccia di rugiada (Traduzione da Quantum, sett.-ott. 1992, a cura di Silvano Sgrignoli)
This article deals with the very familiar phenomena in which vapour condenses, clouds are formed and, finally, it rains. It explains how this happens and why surface shape and not only temperature plays an important role in the process. […]
Anno XXIII - n.4 - ottobre/dicembre 1990 Sui quanti e la realtà
This “galilean dialogue” briefly considered the debate regarding the conceptual foundations of quantum mechanics, expecially referred to the Einstein/Bohr discussions about the interpretation of quantum formalism. In this presentation, Simplicio represents Einstein’s position, while Salviati defends Bohr. In the article, the problems arising from the so called “quantum non separability” […]
Anno XXV - n.4 - ottobre/dicembre 1992 Sui quanti e la realtà. Giornata seconda
One of the most interesting conceptual “puzzles” of theoretical physics of this century (say the quantum theory of measurement) is presented, using the technique of a galileian dialogue. After a concise description of the foundations of the problem, the most important contributions to the subject are summarized in a simple form, […]
Anno XXXI - n.4 - ottobre/dicembre 1998 Sul concetto di tempo: breve percorso storico alla luce delle attuali conoscenze di astronomia e di cosmologia
We show how since the first human rational speculation the concept of infinite has dominated the time and how the peculiarities with which it has been considered have been modified in the same time that the astronomical researches have become deeper. […]
Anno XXXI - n.1 - gennaio/marzo 1998 Sul galleggiamento dei corpi
The buoyancy conditions of solid homogeneous bodies floating in an ideal liquid are studied with special attention towards stable equilibrium. The case of a solid floating cylinder is discussed in detail. […]
Anno XLV - n.4 - ottobre/dicembre 2012 Sviluppi scientifici e tecnologici della superconduttività ad un secolo dalla scoperta
Superconductivity was discovered one hundred years ago. After a short history of its discovery we discuss the basics of the underlying physics, how it can be explained in school, examples of how it is now used and what might be the future possibilities. […]