A concise but rigorous treatment of variational techniques, focussing primarily on Lagrangian and Hamiltonian systems, this book is ideal for physics, engineering and mathematics students. The book begins by applying Lagrange's equations to a number of mechanical systems. It introduces the concepts of generalized coordinates and generalized momentum. Following this the book turns to the calculus of variations to derive the Euler–Lagrange equations. It introduces Hamilton's principle and us...

"If John Irving ever wrote a horror novel, it would be something like this. I loved it.” —Stephen KingNoah Turner sees monsters.His father saw them—and built a shrine to them with The Wandering Dark, an immersive horror experience that the whole family operates.His practical mother has caught glimpses of terrors but refuses to believe—too focused on keeping the family from falling apart.And his eldest sister, the dramatic and vulnerable Sydn...

**From the New York Times bestselling author of Bird Box and Malorie comes a chilling story that revolves around a mysterious small town, revealing its sinister secrets one by one.NAMED ONE OF THE BEST BOOKS OF THE YEAR BY THE WALL STREET JOURNAL • “Must-read horror.”—Publishers Weekly (starred review)**Goblin seems like any other ordinary small town. But with the master storyteller Josh Malerman as your tour guide, you’ll discov...

ONE OF BOOKPAGE'S 10 BEST SCI-FI, FANTASY & HORROR NOVELS OF 2024 • From the acclaimed author of A Cosmology of Monsters ("I loved it" —Stephen King) comes an epic contemporary fantasy, a mixture of The Magicians and It: a story of dark magic, terrible mistakes, and second chances."You can never go home again," the saying goes—but Hal, Athena, and Erin have to. In high school, the three were students of the eccentric Professor Marsh, trai...

Ghost stories tap into our most primal emotions as they encourage us to confront the timeless question: What comes after death? Here, in tales that are by turn scary, funny, philosophic, and touching, you’ll find that question sharpened, split, reconsidered—and met with a multitude of answers.A spirit who is fated to spend eternity reliving the exact moment she lost her chance at love, ghostly trees that haunt the occupant of a wooden house, specters that snatch an...

From New York Times bestselling author Megan Shepherd comes a complex tale of dark magic, family secrets, and monsters that don't stay on the page. "A propulsively charming nightmare, pooling like spilled ink across your imagination." — Kiersten White, New York Times bestselling author of Hide "Haunting and beautifully written . . . an exploration of the mysterious power of stories." —Megan Miranda, New York Times bestselling author of All the Missing Girls and The Last to Vanish "One step...

If you can hear the call of the water, it's already far too late.They say Cape Disappointment is haunted. That’s why tourists used to flock there in droves. They’d visit the rocky shoreline under the old lighthouse’s watchful eye and fish shells from the water as they pretended to spot dark shapes in the surf.Now the tourists are long gone, and when Meredith Strand and her young daughter return to Meredith’s childhood home after an acrimonious split from her wife, the cape ...

A haunting tale of a missing girl that could only have come from the mind of Bram Stoker Award-winning author Bentley Little. The festival was intended as a getaway from UCLA for Gary, his girlfriend, Joan, and their friends. But soon after they arrive, Joan vanishes. Calls to her parents’ home yield only dead air. Her school records are gone. And there’s no evidence that Joan, or even her roommate, ever existed. Most disturbing of all is what they do find. Among Joan’s belongings is a pra...

From the critically acclaimed author of Hekla’s Children comes a dark and haunting tale of our world and the next.After her hand is amputated following a tragic accident, Rachel Cooper suffers vivid nightmares of a woman imprisoned in the trunk of a hollow tree, screaming for help. When she begins to experience phantom sensations of leaves and earth with her missing limb, Rachel is terrified she is going mad. But then another hand takes hers, and the trapp...

"The standard work in the fundamental principles of quantum mechanics, indispensable both to the advanced student and to the mature research worker, who will always find it a fresh source of knowledge and stimulation." --Nature "This is the classic text on quantum mechanics. No graduate student of quantum theory should leave it unread"--W.C Schieve, University of Texas

Changes and additions to the new edition of this classic textbook include a new chapter on symmetries, new problems and examples, improved explanations, more numerical problems to be worked on a computer, new applications to solid state physics, and consolidated treatment of time-dependent potentials.

Striving to explore the subject in as simple a manner as possible, this book helps readers understand the elusive concept of entropy. Innovative aspects of the book include the construction of statistical entropy from desired properties, the derivation of the entropy of classical systems from purely classical assumptions, and a statistical thermodynamics approach to the ideal Fermi and ideal Bose gases. Derivations are worked through step-by-step and important applications are highlighted ...