John Donoghue Bücher

Discover the Celtic Circle of Belonging John O'Donohue, poet, philosopher, and scholar, guides you through the spiritual landscape of the Irish imagination. In Anam Cara, Gaelic for soul friend, the ancient teachings, stories, and blessings of Celtic wisdom provide such profound insights on the universal themes of friendship, solitude, love, and death as: Light is generous The human heart is never completely born Love as ancient recognitionThe body is the angel of the soul Solitude is luminous Beauty likes neglected places The passionate heart never ages To benatural is to be holy Silence is the sister of the divine Death as an invitation to freedom

A concise, beginner-friendly introduction to quantum field theoryQuantum field theory is a powerful framework that extends quantum mechanics in ways that are essential in many modern applications. While it is the fundamental formalism for the study of many areas of physics, quantum field theory requires a different way of thinking, and many newcomers to the subject struggle with the transition from quantum mechanics. A Prelude to Quantum Field Theory introduces the key concepts of quantum field theory in a brief and accessible manner while never sacrificing mathematical rigor. The result is an easy-to-use textbook that distills the most general properties of the theory without overwhelming beginning students with more advanced applications.Bridges quantum mechanics and quantum field theory, emphasizing analogies and differencesEmphasizes a "quantum field theoretical mindset" while maintaining mathematical rigorObtains quantum fields as the continuum limit of a quantized system of many particlesHighlights the correspondence between wave function--fundamental in quantum mechanics--and the formalism of second quantization used in quantum field theoryProvides a step-by-step derivation of Feynman rules for the perturbative study of interacting theoriesIntroduces students to renormalization, path integrals techniques, and moreDiscusses more modern topics like effective field theoriesIdeal for both undergraduate and graduate studentsProven in the classroom

A deeply intelligent and page-turning novel that explores the difficulties of guilt and forgiveness in an impossible friendship between a Nazi and a Jew

SS Obersturmfhrer Paul Meissner przybywa do obozu w Auschwitz wprost z frontu wschodniego. Ciężko ranny podczas walk, obecnie może pełnić jedynie funkcje administracyjne. Pierwszym i najpilniejszym zadaniem jest wzmocnienie podupadającego morale odbywających służbę w obozie oficerów i żołnierzy. Meissner zakłada klub szachowy. Pomysł szybko chwyta, stwarzając esesmanom możliwość obstawiania wyników meczów i zawierania nielegalnych zakładów. Tymczasem do uszu Obersturmfhrera trafia informacja, że wśród więźniów są także szachiści, z których jeden, francuski Żyd Emil Clment, z zawodu zegarmistrz, cieszy się opinią niepokonanego