Hidden Attraction: The History and Mystery of Magnetism

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Oxford University Press, Apr 25, 1996 - Science - 272 pages
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Long one of nature's most fascinating phenomena, magnetism was once the subject of many superstitions. Magnets were thought useful to thieves, effective as a love potion or as a cure for gout or spasms. They could remove sorcery from women and put demons to flight and even reconcile married couples. It was said that a lodestone pickled in the salt of sucking fish had the power to attract gold. Today, these beliefs have been put aside, but magnetism is no less remarkable for our modern understanding of it. In Hidden Attraction, Gerrit L. Verschuur, a noted astronomer and National Book Award nominee for The Invisible Universe, traces the history of our fascination with magnetism, from the first discovery of magnets in Greece, to state-of-the-art theories that see magnetism as a basic force in the universe. The book begins with the early debunking of superstitions by Peter Peregrinus (Pierre de Maricourt), whom Roger Bacon hailed as one of the world's first experimental scientists (Perigrinus held that "experience rather than argument is the basis of certainty in science"). Verschuur discusses William Gilbert, who confronted the multitude of superstitions about lodestones in De Magnete, widely regarded as the first true work of modern science, in which Gilbert reported his greatest insight: that the earth itself was magnetic. We also meet Hans Christian Oersted, who demonstrated that an electric current could influence a magnet (Oersted did this for the first time during a public lecture) and Andre-Marie Ampere, who showed that a current actually produced magnetism. Verschuur also examines the pioneering experiments and theoretical breakthroughs of Faraday and Maxwell and Zeeman (who demonstrated the relationship between light and magnetism), and he includes many lively stories of discovery, such as the use of frogs by Galvani and Volta, and Hertz's accidental discovery of radio waves. Along the way, we learn many interesting scientific facts, perhaps the most remarkable of which is that lodestones are made by bacteria (a sediment organism known as GS-15 eats iron, converting ferric oxide to magnetite and, over billions of years, forming the magnetite layers in iron formations). Boasting many informative illustrations, this is an adventure of the mind, using the specific phenomenon of magnetism to show how we have moved from an era of superstitions to one in which the Theory of Everything looms on the horizon.
 

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HIDDEN ATTRACTION: The Mystery and History of Magnetism

User Review  - Jane Doe - Kirkus

Using the story of magnetism as his framework, Verschuur (The Invisible Universe, 1986—not reviewed) discusses—from the vantage point of a committed propagandist for the scientific method—our ... Read full review

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this book is the best book , I ever read, about the discovery of electricity and magnetism, from Alessandro Volta to Heinrich Hertz. Very popular writing and explanation of all details which lead to discovery of thousand branches of electro - industry. On the beginning was small attraction of compass - needle in the near of wire trough the electric current was flowing. On the end ...
Highly recomend.
 

Contents

1 Of Mystery and Magnets
3
2 Clearing the Decks
19
3 On the Magnetical Philosophy
31
4 Let the Experimentation Begin
43
The Birth of Electromagnetism
55
The Era of Discovery Personified
73
7 Fields and Faraday
93
8 Maxwell Sees the Light
107
10 Curiouser and Curiouser
147
11 What If?
163
12 Magnetic Fields in Space
183
13 The Spark That Bridged the Universe
199
14 The Era of Creativity
209
15 The Wages of Curiosity
223
The Pattern of Progress
233
Index
251

9 Heinrich Hertzs Grand Adventure
125

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About the author (1996)

Gerrit L. Verschuur is a professional radio astronomer, freelance writer, and contributing editor of Air and Space Magazine. He is the author or editor of nine previous books.

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