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Reflective Optics
This is the first book dedicated exclusively to all-reflective imaging systems. It is a teaching tool as well as a practical design tool for anyone who specializes in optics, particularly for those interested in telescopes, infrared, and grazing-incidence systems. The first part of the book describes a unified geometric optical theory of all-reflective imaging systems (from near-normal to grazing incidence) developed from basic principles. The second part discusses correction methods and a multitude of closed-form solutions of well-corrected systems, supplemented with many conventional and unconventional designs examples. This book will be useful to anyone interested in the theory of optical image formation and in the actual design of image-forming instruments.
NASA Tech Briefs
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Bound to Be Free
"Bound to Be Free" explores the scriptural concepts of church ("ekklesia"), freedom ("eleutheria"), and truthful speech ("parrhesia"), showing not only that the proper meanings of three concepts interpenetrate one another but also that rending them asunder lies at the root of Christian division today. According to Reinhard Hutter, the crucial interrelationship of these three concepts has long been obscured by ongoing church division. Separated from each other, many Christians assume that freedom can be maintained and truthful speech preserved only at the cost of unity. Others assume that Christian unity can be attained only if freedom and truthful speech are narrowly circumscribed in their p...
The Lutheran Confessions
In this important new volume, Arand, Kolb, and Nestingen bring the fruit of an entire generation of scholarship to bear on these documents, making it an essential and up-to-date class text. The Lutheran Confessions places the documents solidly within their political, social, ecclesiastical and theological contexts, relating them to the world in which they took place. Though the book is not a theology of the Confessions, readers will clearly understand the issues at stake in the narratives, both in their own time, and in ours.
How Does God Talk to Us?
How does God talk to us? The image of the speaking God offers a profound insight into the nature of communication. The idea of the God's Word runs like a red thread through the entire Bible. Few theologians, however, have interpreted the concept "Word of God" as a linguistic phenomenon, but Augustine, Luther, and Barth are among those who have. What sets this study apart from others is its emphasis on the aspects of semiotics (Augustine), semantics (Luther), and pragmatics (Barth). Hofmann then places these three theologians in the context of the linguistic analytical philosophy of Ludwig Wittgenstein, Ian Ramsey, and John L. Austin. This work carries forward the dialogue between theology and modern philosophy of language, while at the same time opening up the Word of God for human reality. It also touches on the fields of the doctrine of God and Christology, attempting nothing less than a comprehensive language theory of the Word of God.
My Body Given for You
The Eucharist originated at the Last Supper of Jesus with his disciples. It is based on the prayer of thanksgiving that Jesus pronounced over the bread and wine at that meal. “Eucharist” means “thanksgiving”, “praise”, and “blessing”. The Church celebrates the Eucharist as a memorial of the death and Resurrection of Jesus Christ, which is more than a remembrance of the Last Supper of Jesus with his disciples. In the Eucharist the sacrifice of our redemption becomes present sacramentally. In the past, dogmatic theology has treated the meaning of the Eucharist while disregarding the form of its liturgical celebration, whereas liturgical studies have been content with only the l...
Defending Faith
When in 1550 Andreas Osiander (1498-1552) advocated a different understanding of the central Lutheran doctrine of justification by faith alone, most other Lutheran churches in Germany rejected his stance, producing nearly one hundred opposing tracts. Timothy J. Wengert examines these reactions as a way of describing the theological side of confessionalization in Lutheran lands.--Back of dust jacket.
Also a History of Philosophy, Volume 2
In this second volume of his groundbreaking new work on the history of philosophy, Jürgen Habermas traces the development of Western thought from the reception of Platonism by early Christian thought, through the revolution in medieval philosophy and theology triggered by the rediscovery of Aristotle’s works, up to the decoupling of philosophical and theological thought in nominalism and the Reformation that ushered in the postmetaphysical thinking of the modern age. In contrast to conventional histories that focus on movements and schools, Habermas takes the dialectic of faith and knowledge as a guiding thread for analysing key developments in the thought of major figures such as Augusti...
