Risultati della ricerca
Anno XXXVIII - n.1 - gennaio/marzo 2005 Considerazioni sulla relatività
The philosophical meaning of Einstein’s relativity goes beyond common sense. Applications of the special theory overcome the human scale and require important abstractions. […]
Anno XXXVIII - n.1 - gennaio/marzo 2005 Einstein e la massa relativistica
Einstein’s writings are examined in order to see how he treated the concept of mass and in particular if he ever introduced relativistic mass. The conclusion is that relativistic mass never appears – with the possible exception of the book The Evolution of Physics where some passages might lead the reader to think that mass depends on velocity. […]
Anno XXXVIII - n.1 - gennaio/marzo 2005 L’elettrodinamica dei corpi in movimento e i libri di testo: riflessioni sul significato culturale dell’insegnamento della relatività
Textbooks are the result of the author’s specific scientific, epistemological, educational choices. Original memories can help teachers and students to elicit the roots of the authors’ choices and their peculiarities with respect to other possible choices. The issue is discussed by re-constructing the historical-epistemological roots of the most popular approaches to teaching Special Relativity through a careful analysis of the original papers by Einstein and Minkowski. […]
Anno XXXVIII - n.1 - gennaio/marzo 2005 L’elettrodinamica dei corpi in movimento in classe: studenti di scuola secondaria a confronto con Fisica, Epistemologia e Storia del pensiero scientifico
The paper reports the main results of an experience in teaching Special Relativity to 17-18 year old students of a Scientific Lyceum. The course stressed in depth understanding of crucial concepts and mastering content knowledge from epistemological and cultural perspectives. The results show that involving students in high cultural challenges is possible and suggest that their dislike of physics might be due not to its intrinsic difficulty but to the perception that the difficulty is not repaid by what it usually offers. […]
Anno XXXVIII - n.1 - gennaio/marzo 2005 Rileggere Einstein sulle radiazioni
The concepts of spontaneous and stimulated emission are well known from Einstein?s 1917 paper on radiation, but his theory of radiation comprises many other concepts-the paper is a treasure trove of physics. […]