Per F Dahl's Books

Heavy Water and the Wartime Race for Nuclear Energy

By: Per F Dahl

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Heavy Water and the Wartime Race for Nuclear Energy

By: Per F Dahl

Heavy water (deuterium oxide) played a sinister role in the race for nuclear energy during the World War II. It was a key factor in Germany's bid to harness atomic energy primarily as a source of electric power; its acute shortage was a factor in Japan's decision not to pursue seriously nuclear weaponry; its very existence was a nagging thorn in the side of the Allied powers. Books and films have dwelt on the Allies' efforts to deny the Germans heavy water by military means; however, a history of heavy water has yet to be written. Filling this gap, Heavy Water and the Wartime Race for Nuclear Energy concentrates on the circumstances whereby Norway became the preeminent producer of heavy water and on the scientific role the rare isotope of hydrogen played in the wartime efforts by the Axis and Allied powers alike. Instead of a purely technical treatise on heavy water, the book describes the social history of the subject. The book covers the discovery and early uses of deuterium before World War II and its large-scale production by Norsk Hydro in Norway, especially under German control. It also discusses the French-German race for the Norwegian heavy-water stocks in 1940 and heavy water's importance for the subsequent German uranium project, including the Allied sabotage and bombing of the Norwegian plants, as well as its lesser role in Allied projects, especially in the United States and Canada. The book concludes with an overall assessment of the importance and the perceived importance of heavy water for the German program, which alone staked everything on heavy water in its quest for a nuclear chain reaction.

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Page Count

420

Publisher

CRC Press

Published Date

ISBN 10

1000948366

ISBN 13

9781000948363

Flash of the Cathode Rays

A History of J J Thomson's Electron

By: Per F Dahl

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Flash of the Cathode Rays

A History of J J Thomson's Electron

By: Per F Dahl

The electron is fundamental to almost all aspects of modern life, controlling the behavior of atoms and how they bind together to form gases, liquids, and solids. Flash of the Cathode Rays: A History of J.J. Thomson's Electron presents the compelling story of the discovery of the electron and its role as the first subatomic particle in nature. The book traces the evolution of the concept of electrical charge, from the earliest glow discharge studies to the final cathode ray and oil drop experiments of J.J. Thomson and Robert Millikan. It also provides an overview of the history of modern physics up to the advent of the old quantum theory around 1920. Consolidating scholarly material while incorporating new material discovered by the well-respected author, the book covers the continental and English race for the source of the cathode rays, culminating in Thomson's corpuscle in 1897. It explores the events leading to Millikan's unambiguous isolation of the electron and the simultaneous circumstances surrounding the birth of Ernest Rutherford's nuclear atom and the discovery of radioactivity in 1896. The author also focuses on the controversies over N-rays, Becquerel's positive electron, and the famous Ehrenhaft-Millikan dispute over subelectrons. Scholarly yet accessible to those with basic physics knowledge, this book should be of interest to historians of science, professional scientists and engineers, teachers and students of physics, and general readers interested in the development of modern physics.

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Page Count

558

Publisher

CRC Press

Published Date

ISBN 10

0750304537

ISBN 13

9780750304535

Paul’s Negotiation of Abraham in Galatians 3 in the Jewish Context

The Galatian Converts — Lineal Descendants of Abraham and Heirs of the Promise

By: Per Jarle Bekken

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Paul’s Negotiation of Abraham in Galatians 3 in the Jewish Context

The Galatian Converts — Lineal Descendants of Abraham and Heirs of the Promise

By: Per Jarle Bekken

This work offers a fresh reading of Paul’s appropriation of Abraham in Gal 3:6–29 against the background of Jewish data, especially drawn from the writings of Philo of Alexandria. Philo’s negotiation on Abraham as the model proselyte and the founder of the Jewish nation based on his trust in God's promise relative to the Law of Moses provides a Jewish context for a corresponding debate reflected in Galatians, and suggests that there were Jewish antecedents that came close to Paul’s reasoning in his own time. This volume incorporates a number of new arguments in the context of scholarly discussion of both Galatian 3 and some of the Philonic texts, and demonstrates how the works of Philo can be applied responsibly in New Testament scholarship.

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Page Count

326

Publisher

Walter de Gruyter GmbH & Co KG

Published Date

ISBN 10

3110722100

ISBN 13

9783110722109

Heavy Water and the Wartime Race for Nuclear Energy

By: Per F Dahl

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Heavy Water and the Wartime Race for Nuclear Energy

By: Per F Dahl

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Solve jigsaw puzzle

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Page Count

420

Publisher

CRC Press

Published Date

ISBN 10

1000948366

ISBN 13

9781000948363

Flash of the Cathode Rays

A History of J J Thomson's Electron

By: Per F Dahl

Write a review Read reviews Take a Quiz Solve Book Puzzle

Flash of the Cathode Rays

A History of J J Thomson's Electron

By: Per F Dahl

Average ratings

N/A

Write a review

Solve jigsaw puzzle

Age

Page Count

558

Publisher

CRC Press

Published Date

ISBN 10

0750304537

ISBN 13

9780750304535

Book's by Per F Dahl

Heavy Water and the Wartime Race for Nuclear Energy

Heavy Water and the Wartime Race for Nuclear Energy

Flash of the Cathode Rays

Flash of the Cathode Rays

Paul’s Negotiation of Abraham in Galatians 3 in the Jewish Context

Paul’s Negotiation of Abraham in Galatians 3 in the Jewish Context

Heavy Water and the Wartime Race for Nuclear Energy

Heavy Water and the Wartime Race for Nuclear Energy

Flash of the Cathode Rays

Flash of the Cathode Rays

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