Report on the Variations of the Magnetic Intensity: Observed at Different Points of the Earth's Surface (Classic Reprint) - Hardcover

Edward Sabine

9780656389346: Report on the Variations of the Magnetic Intensity: Observed at Different Points of the Earth's Surface (Classic Reprint)

Hardcover

ISBN 10: 0656389346 ISBN 13: 9780656389346

Publisher: Forgotten Books, 2024

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Explore how the Earth's magnetic intensity varies across the globe and through time.

This edition presents Major Edward Sabine’s comprehensive study of magnetic variation, drawing on 753 determinations from 670 stations worldwide. It combines historical context, new observations, and a clear synthesis of what these measurements reveal about the planet’s magnetism. Rich with maps and tables, the work offers a detailed view of how intensity shifts with position and how scientists compare observation with theory.

The book is organized into three parts: a historical record of the key observations, a complete presentation of results in a structured table, and a concise summary of the major conclusions about terrestrial magnetism. It highlights both established data and newly published observations, and shows how careful calculation ties together diverse findings from many observers.

Clear explanations of how intensity measurements are gathered and interpreted.
Visuals and lines illustrating lines of equal magnetic intensity across the globe.
Discussion of the relationship between theory and observation, and how they advance knowledge.
Notes on the need for southern-hemisphere data to complete the global picture.

Ideal for readers interested in the history of science, geomagnetism, and the methods of large-scale data analysis.

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