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Graviton and Kalb-Ramond field with Lorentz violation
The contents of this book are mainly based on the combination of all material developed from my master’s studies. Initially, we provide a general state of the art panorama as well as a brief motivation of studying Lorentz violation in the context of vectors and tensors. Next, we discuss about the general features of the bumblebee models involving gravitational waves, i.e., graviton. More so, we provide a thermodynamical investigation in such a context. The main features of the Kalb-Ramond field is also exhibited taking into account curved and flat spacetimes. To the latter case, the calculation of the propagator is presented when the Lorentz symmetry is no longer maintained. Finally, the interparticle potential to the Kalb-Ramond field is calculated.
Jayme Tiomno
Jayme Tiomno (1920-2011) was one of the most influential Brazilian physicists of the 20th century, interacting with many of the renowned physicists of his time, including John Wheeler and Richard Feynman, Eugene Wigner, Chen Ning Yang, David Bohm, Murray Gell-Mann, Remo Ruffini, Abdus Salam, and many others. This biography tells the sometimes romantic, often discouraging but finally optimistic story of a dedicated scientist and educator from a developing country who made important contributions to particle physics, gravitation, cosmology and field theory, and to the advancement of science and of scientific education, in many institutions in Brazil and elsewhere. Drawing on unpublished documents from archives in Brazil and the US as well as private sources, the book traces Tiomno's long life, following his role in the establishment of various research facilities and his tribulations during the Brazilian military dictatorship. It presents a story of progress and setbacks in advancing science in Brazil and beyond, and of the persistence and dedication of a talented physicist who spent his life in search of scientific truth.
Curso de física básica
Este curso universitário de Física Básica destina-se aos estudantes de Engenharia, Física, Matemática, Química e áreas correlatas. O objetivo é apresentar uma discussão detalhada e cuidadosa sobre os conceitos e princípios básicos da Física, com ênfase na compreensão das ideias fundamentais. O Volume 1, Mecânica, corresponde ao 1º semestre do curso. Os tópicos discutidos compreendem cinemática, dinâmica, leis de conservação, gravitação, mecânica dos corpos rígidos e forças de inércia. Há 240 problemas propostos, todos com respostas. Os problemas foram elaborados com vistas a ilustrar os principais conceitos e resultados, contribuindo para sua melhor compreensão, indicar aplicações a uma variedade de situações concretas, aprofundar e generalizar resultados. Nesta 5ª edição, o texto foi inteiramente revisto e atualizado, bem como aprimorado, com nova apresentação gráfica e novas ilustrações.
How Knowledge Moves
Knowledge matters, and states have a stake in managing its movement to protect a variety of local and national interests. The view that knowledge circulates by itself in a flat world, unimpeded by national boundaries, is a myth. The transnational movement of knowledge is a social accomplishment, requiring negotiation, accommodation, and adaptation to the specificities of local contexts. This volume of essays by historians of science and technology breaks the national framework in which histories are often written. Instead, How Knowledge Moves takes knowledge as its central object, with the goal of unraveling the relationships among people, ideas, and things that arise when they cross nationa...
Rainbows
The rainbow is a compelling spectacle in nature—a rare, evanescent, and beautiful bridge between subjective experience and objective reality—and no less remarkable as a cultural phenomenon. A symbol of the Left since the German Peasants’ War of the 1520s, it has been adopted by movements for gay rights, the environment, multiculturalism, and peace around the globe, and has inspired poets, artists, and writers including John Keats, Caspar David Friedrich, Edgar Allan Poe, and Nathaniel Hawthorne. In this book, the first of its kind, Daniel MacCannell offers an enlightening and instructive guide to the rainbow’s multicolored relationship with humanity. The scientific “discovery” of...
1983
No detailed description available for "1983".
