Salvatore Esposito – författare

Through just a handful of papers, Ettore Majorana left an indelible mark in the fields of physics, mathematics, computer science and even economics before his mysterious disappearance in 1938. It is only now that the importance of Majorana's work is being realised: Majorana fermions are intensely studied today, and his work on neutrino physics has provided possible explanations for the existence of dark matter. In this unique volume, Salvatore Esposito explores not only Majorana's known papers but, even more interestingly, unveils his unpublished works as well. These include powerful methods and results, ranging from the atomic two-centre problem, the Thomas-Fermi model and ferromagnetism to quasi-stationary states, n-component relativistic wave equations and quantum scalar electrodynamics. Featuring biographical notes and contributions from leading experts Evgeny Akhmedov and Nobel Laureate Frank Wilczek, this fascinating book will captivate graduate students and researchers interested in frontier science as well as in the history of science.

Through just a handful of papers, Ettore Majorana left an indelible mark in the fields of physics, mathematics, computer science and even economics before his mysterious disappearance in 1938. It is only now that the importance of Majorana''s work is being realised: Majorana fermions are intensely studied today, and his work on neutrino physics has provided possible explanations for the existence of dark matter. In this unique volume, Salvatore Esposito explores not only Majorana''s known papers but, even more interestingly, unveils his unpublished works as well. These include powerful methods and results, ranging from the atomic two-centre problem, the Thomas–Fermi model and ferromagnetism to quasi-stationary states, n-component relativistic wave equations and quantum scalar electrodynamics. Featuring biographical notes and contributions from leading experts Evgeny Akhmedov and Nobel Laureate Frank Wilczek, this fascinating book will captivate graduate students and researchers interested in frontier science as well as in the history of science.

Through just a handful of papers, Ettore Majorana left an indelible mark in the fields of physics, mathematics, computer science and even economics before his mysterious disappearance in 1938. It is only now that the importance of Majorana''s work is being realised: Majorana fermions are intensely studied today, and his work on neutrino physics has provided possible explanations for the existence of dark matter. In this unique volume, Salvatore Esposito explores not only Majorana''s known papers but, even more interestingly, unveils his unpublished works as well. These include powerful methods and results, ranging from the atomic two-centre problem, the Thomas–Fermi model and ferromagnetism to quasi-stationary states, n-component relativistic wave equations and quantum scalar electrodynamics. Featuring biographical notes and contributions from leading experts Evgeny Akhmedov and Nobel Laureate Frank Wilczek, this fascinating book will captivate graduate students and researchers interested in frontier science as well as in the history of science.

HISTORICAL PRELUDE Ettore Majorana's fame solidly rests on testimonies like the following, from the evocative pen of Giuseppe Cocconi. At the request of Edoardo Amaldi, he wrote from CERN (July 18, 1965): "In January 1938, after having just graduated, I was invited, essen­ tially by you, to come to the Institute of Physics at the University in Rome for six months as a teaching assistant, and once I was there I would have the good fortune of joining Fermi, Bernardini (who had been given a chair at Camerino a few months earlier) and Ageno (he, too, a new graduate), in the research of the products of disintegration of /-L "mesons" (at that time called mesotrons or yukons), which are produced by cosmic rays [ . . . ] "It was actually while I was staying with Fermi in the small laboratory on the second floor, absorbed in our work, with Fermi working with a piece of Wilson's chamber (which would help to reveal mesons at the end of their range) on a lathe and me constructing a jalopy for the illumination of the chamber, using the flash produced by the explosion of an aluminum ribbon short circuited on a battery, that Ettore Majorana came in search of Fermi. I was introduced to him and we exchanged few words. A dark face. And that was it.

Without listing his works, all of which are highly notable both for the originality of the methods utilized as well as for the importance of the results achieved, we limit ourselves to the following: Inmodernnucleartheories, thecontributionmadebythisresearcher to the introduction of the forces called ‘Majorana forces’ is universally recognized as the one, among the most fundamental, that permits us to theoretically comprehend the reasons for nuclear stability. The work of Majorana today serves as a basis for the most important research in this ?eld. In atomic physics, the merit of having resolved some of the most - tricate questions on the structure of spectra through simple and elegant considerations of symmetry is due to Majorana. Lastly, he devised a brilliant method that permits us to treat the positive and negative electron in a symmetrical way, ?nally elimin- ing the necessity to rely on the extremely arti?cial and unsatisfactory hypothesis of an in?nitely large electrical charge di?used in space, a question that had been tackled in vain by many other scholars [4].

Without listing his works, all of which are highly notable both for the originality of the methods utilized as well as for the importance of the results achieved, we limit ourselves to the following: Inmodernnucleartheories, thecontributionmadebythisresearcher to the introduction of the forces called ‘Majorana forces’ is universally recognized as the one, among the most fundamental, that permits us to theoretically comprehend the reasons for nuclear stability. The work of Majorana today serves as a basis for the most important research in this ?eld. In atomic physics, the merit of having resolved some of the most - tricate questions on the structure of spectra through simple and elegant considerations of symmetry is due to Majorana. Lastly, he devised a brilliant method that permits us to treat the positive and negative electron in a symmetrical way, ?nally elimin- ing the necessity to rely on the extremely arti?cial and unsatisfactory hypothesis of an in?nitely large electrical charge di?used in space, a question that had been tackled in vain by many other scholars [4].

This book presents a selection of the most recent research results from the Italian physics education research community, aimed at enhancing the teaching and learning of physics. The motivation for this publication arises from the lack of a comprehensive reference for teachers on research results in physics education. Despite various physics curriculum reform initiatives, such as the introduction of modern physics into high school curricula, their effectiveness in improving the quality of physics teaching in schools has been limited.The book offers a contextualized view of the main topics in physics education, along with a comprehensive overview of the current challenges faced by physics education in Italy and abroad. It also presents research findings that could potentially enhance students' learning of physics. Throughout the book, the implications of these studies are outlined, acknowledging issues and knowledge gaps that will guide future research in physics education. Specifically, rather than covering all the contents addressed in the physics curriculum, the book presents research contributions that suggest potentially effective strategies, methods, and practices at different school levels, from primary school to secondary school and university level. Regarding physics content, the book presents teaching proposals highlighting conceptual aspects and exemplary methodologies of interpretation in physics, such as the physics of fluids and quantum mechanics. It also includes research contributions on different methods and proposals for implementing practical activities, reflecting on the role of the laboratory in learning the discipline and providing examples of integrating experimental and cognitive skills.The book also addresses the role of affective variables, such as physics identity, self-efficacy, and attitudes toward physics in the learning process. Additionally, studies on teachers’ professional development are presented, which can inform the design of proposals for educational paths and methods, within a framework of close collaboration between schools and physics departments.

This book presents a selection of the most recent research results from the Italian physics education research community, aimed at enhancing the teaching and learning of physics. The motivation for this publication arises from the lack of a comprehensive reference for teachers on research results in physics education. Despite various physics curriculum reform initiatives, such as the introduction of modern physics into high school curricula, their effectiveness in improving the quality of physics teaching in schools has been limited.The book offers a contextualized view of the main topics in physics education, along with a comprehensive overview of the current challenges faced by physics education in Italy and abroad. It also presents research findings that could potentially enhance students' learning of physics. Throughout the book, the implications of these studies are outlined, acknowledging issues and knowledge gaps that will guide future research in physics education. Specifically, rather than covering all the contents addressed in the physics curriculum, the book presents research contributions that suggest potentially effective strategies, methods, and practices at different school levels, from primary school to secondary school and university level. Regarding physics content, the book presents teaching proposals highlighting conceptual aspects and exemplary methodologies of interpretation in physics, such as the physics of fluids and quantum mechanics. It also includes research contributions on different methods and proposals for implementing practical activities, reflecting on the role of the laboratory in learning the discipline and providing examples of integrating experimental and cognitive skills.The book also addresses the role of affective variables, such as physics identity, self-efficacy, and attitudes toward physics in the learning process. Additionally, studies on teachers’ professional development are presented, which can inform the design of proposals for educational paths and methods, within a framework of close collaboration between schools and physics departments.

This book presents a selection of the most recent research results from the Italian physics education research community, aimed at enhancing the teaching and learning of physics. The motivation for this publication arises from the lack of a comprehensive reference for teachers on research results in physics education. Despite various physics curriculum reform initiatives, such as the introduction of modern physics into high school curricula, their effectiveness in improving the quality of physics teaching in schools has been limited.The book offers a contextualized view of the main topics in physics education, along with a comprehensive overview of the current challenges faced by physics education in Italy and abroad. It also presents research findings that could potentially enhance students' learning of physics. Throughout the book, the implications of these studies are outlined, acknowledging issues and knowledge gaps that will guide future research in physics education. Specifically, rather than covering all the contents addressed in the physics curriculum, the book presents research contributions that suggest potentially effective strategies, methods, and practices at different school levels, from primary school to secondary school and university level. Regarding physics content, the book presents teaching proposals highlighting conceptual aspects and exemplary methodologies of interpretation in physics, such as the physics of fluids and quantum mechanics. It also includes research contributions on different methods and proposals for implementing practical activities, reflecting on the role of the laboratory in learning the discipline and providing examples of integrating experimental and cognitive skills.The book also addresses the role of affective variables, such as physics identity, self-efficacy, and attitudes toward physics in the learning process. Additionally, studies on teachers’ professional development are presented, which can inform the design of proposals for educational paths and methods, within a framework of close collaboration between schools and physics departments.

This biography sheds new light on the life and work of physicist Ettore Majorana (including unpublished contributions), as well as on his mysterious disappearance in March 1938. Majorana is held by many, including Nobel Laureate, Enrico Fermi, to have been a genius of the rank of Galilei and Newton. In this intriguing story, the author, himself a leading expert on the work of Majorana, supplements the existing literature with new insights, anecdotes and personal accounts of contemporaries of Majorana.

This biography sheds new light on the life and work of physicist Ettore Majorana (including unpublished contributions), as well as on his mysterious disappearance in March 1938. Majorana is held by many, including Nobel Laureate, Enrico Fermi, to have been a genius of the rank of Galilei and Newton. In this intriguing story, the author, himself a leading expert on the work of Majorana, supplements the existing literature with new insights, anecdotes and personal accounts of contemporaries of Majorana.

HISTORICAL PRELUDE Ettore Majorana's fame solidly rests on testimonies like the following, from the evocative pen of Giuseppe Cocconi. At the request of Edoardo Amaldi, he wrote from CERN (July 18, 1965): "In January 1938, after having just graduated, I was invited, essen­ tially by you, to come to the Institute of Physics at the University in Rome for six months as a teaching assistant, and once I was there I would have the good fortune of joining Fermi, Bernardini (who had been given a chair at Camerino a few months earlier) and Ageno (he, too, a new graduate), in the research of the products of disintegration of /-L "mesons" (at that time called mesotrons or yukons), which are produced by cosmic rays [ . . . ] "It was actually while I was staying with Fermi in the small laboratory on the second floor, absorbed in our work, with Fermi working with a piece of Wilson's chamber (which would help to reveal mesons at the end of their range) on a lathe and me constructing a jalopy for the illumination of the chamber, using the flash produced by the explosion of an aluminum ribbon short circuited on a battery, that Ettore Majorana came in search of Fermi. I was introduced to him and we exchanged few words. A dark face. And that was it.

Without listing his works, all of which are highly notable both for the originality of the methods utilized as well as for the importance of the results achieved, we limit ourselves to the following: Inmodernnucleartheories, thecontributionmadebythisresearcher to the introduction of the forces called ‘Majorana forces’ is universally recognized as the one, among the most fundamental, that permits us to theoretically comprehend the reasons for nuclear stability. The work of Majorana today serves as a basis for the most important research in this ?eld. In atomic physics, the merit of having resolved some of the most - tricate questions on the structure of spectra through simple and elegant considerations of symmetry is due to Majorana. Lastly, he devised a brilliant method that permits us to treat the positive and negative electron in a symmetrical way, ?nally elimin- ing the necessity to rely on the extremely arti?cial and unsatisfactory hypothesis of an in?nitely large electrical charge di?used in space, a question that had been tackled in vain by many other scholars [4].