Fresh Dialogue 7
Fresh Dialogue 7

Author: Lisa Farjam

Publisher: Princeton Architectural Press

Published: 2007-03-29

Total Pages: 132

ISBN-13: 9781568986982

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The AIGA's Fresh Dialogue series brings together emerging designers in annual podium discussions and provides them with a forum to talk about their work, thoughts, and ideas. Fresh Dialogue 7: Making Magazines presents three young publishing gurus who are reinventing how magazines are made.They've thrown off the templates and formulas of traditional publishing in favor of new and innovative approaches to magazine making. Representing the next generation of publishing kingpins, the book features Tod Lippy, creator of the luscious biannual arts publication Esopus; Lisa Farjam, the force behind Middle-East culture magazine Bidoun; and master storyteller David Haskell, editor-in-chief of Topic magazine. The moderator is magazine industry mover, shaker, and supreme tastemaker James Truman.

Dual-Spin Dirac Equation and Maxwell's Equations
Dual-Spin Dirac Equation and Maxwell's Equations

Author: Xiafu Zhang

Publisher: Dorrance Publishing

Published: 2024-08-29

Total Pages: 367

ISBN-13:

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When studying the Dirac equation and Maxwell's equations, replacing the current second-order Pauli spin matrices with fourth-order spin matrices reveals that the Dirac equation contains a pair of spins, and the Maxwell’s equations contain spins and Runge-Lenz vector. This book refers to the pair of spins as "dual-spin". The dual-spin matrices are the main components of these equations. Based on the existence of infinite representations of dual-spin matrices, they can be expressed as operators. This book proposes a new representation for Dirac equation and the Maxwell’s equations using these dual-spin operators, and mathematically proves its existence. With the new representation, this book also demonstrates the harmonious unity of the internal structure of the equations and the inherent connection between the two equations, and introduces new symmetries, new solution methods, as well as new approaches to Lorentz transformations by this dual-spin representation. Furthermore, the original Dirac equation only contained one spin, but the author has discovered that there are two spins, which is a breakthrough in cognition.

The Templeton Twins Have an Idea
The Templeton Twins Have an Idea

Author: Ellis Weiner

Publisher: Chronicle Books

Published: 2012-08-03

Total Pages: 240

ISBN-13: 145212020X

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This special edition of The Templeton Twins Have an Idea: Book One also includes a sneak preview of The Templeton Twins Make a Scene: Book Two and a Q&A with the author. Suppose there were 12-year-old twins, a boy and girl named John and Abigail Templeton. Let's say John was pragmatic and played the drums, and Abigail was theoretical and solved cryptic crosswords. Now suppose their father was a brilliant, if sometimes confused, inventor. And suppose that another set of twins—adults—named Dean D. Dean and Dan D. Dean, kidnapped the Templeton twins and their ridiculous dog in order to get their father to turn over one of his genius (sort of) inventions. Yes, I said kidnapped. Wouldn't it be fun to read about that? Oh please. It would so. Luckily for you, this is just the first in a series perfect for boys and girls who are smart, clever, and funny (just like the twins), and enjoy reading adventurous stories (who doesn't?!).

Symbol Correspondences for Spin Systems
Symbol Correspondences for Spin Systems

Author: Pedro de M. Rios

Publisher: Springer

Published: 2014-10-10

Total Pages: 204

ISBN-13: 3319081985

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In mathematical physics, the correspondence between quantum and classical mechanics is a central topic, which this book explores in more detail in the particular context of spin systems, that is, SU(2)-symmetric mechanical systems. A detailed presentation of quantum spin-j systems, with emphasis on the SO(3)-invariant decomposition of their operator algebras, is first followed by an introduction to the Poisson algebra of the classical spin system and then by a similarly detailed examination of its SO(3)-invariant decomposition. The book next proceeds with a detailed and systematic study of general quantum-classical symbol correspondences for spin-j systems and their induced twisted products of functions on the 2-sphere. This original systematic presentation culminates with the study of twisted products in the asymptotic limit of high spin numbers. In the context of spin systems it shows how classical mechanics may or may not emerge as an asymptotic limit of quantum mechanics. The book will be a valuable guide for researchers in this field and its self-contained approach also makes it a helpful resource for graduate students in mathematics and physics.

Compact Manifolds with Special Holonomy
Compact Manifolds with Special Holonomy

Author: Dominic D. Joyce

Publisher: OUP Oxford

Published: 2000

Total Pages: 460

ISBN-13: 9780198506010

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This is a combination of a graduate textbook on Reimannian holonomy groups, and a research monograph on compact manifolds with the exceptional holonomy groups G2 and Spin (7). It contains much new research and many new examples.

Equilibrium States for a Class of Dual-spin Spacecraft
Equilibrium States for a Class of Dual-spin Spacecraft

Author: Thomas W. Flatley

Publisher:

Published: 1971

Total Pages: 98

ISBN-13:

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The attitude motion of a dual-spin spacecraft consisting primarily of two symmetric bodies with a common axis of rotation and a constant relative spin rate is analyzed. Each of the main bodies contains a spring-mass-dashpot damper with a degree of freedom parallel to their common axis. The equations of motion are studied by means of a perturbation analysis in which only the damper masses are assumed small. The problem then becomes the determination of perturbations to a reference motion which is similar to the general precession of the torque-free rigid body in classical mechanics. One of the key parameters associated with such motion is the nutation angle (or the angle between the nominal spin axis and the inertially-fixed angular momentum vector). By determining the zeroth and first order behavior of this angle for this system, a general analytical stability criterion is established. This criterion not only determines the stability or instability of an arbitrary initial state of the system, but reveals the nature of any instability which might exist. In reduced form, the stability criterion verifies results in the recent literature obtained by Routhian and Floquet analyses of linearized equations representing special cases of this system.

Strings and Geometry
Strings and Geometry

Author: Clay Mathematics Institute. Summer School

Publisher: American Mathematical Soc.

Published: 2004

Total Pages: 396

ISBN-13: 9780821837153

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Contains selection of expository and research article by lecturers at the school. Highlights current interests of researchers working at the interface between string theory and algebraic supergravity, supersymmetry, D-branes, the McKay correspondence andFourer-Mukai transform.

Exactly Solved Models
Exactly Solved Models

Author: Fa Yueh Wu

Publisher: World Scientific

Published: 2009

Total Pages: 661

ISBN-13: 9812813896

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This unique volume provides a comprehensive overview of exactly solved models in statistical mechanics by looking at the scientific achievements of F Y Wu in this and related fields, which span four decades of his career. The book is organized into topics ranging from lattice models in condensed matter physics to graph theory in mathematics, and includes the author's pioneering contributions. Through insightful commentaries, the author presents an overview of each of the topics and an insider's look at how crucial developments emerged. With the inclusion of important pedagogical review articles by the author, Exactly Solved Models is an indispensable learning tool for graduate students, and an essential reference and source book for researchers in physics and mathematics as well as historians of science.