Magnetism
豆瓣
A Very Short Introduction
Stephen J. Blundell
简介
Explains a fundamental scientific topic and its importance in an accessible way
Considers early theories of magnetism including the discovery that the Earth itself is a magnet
Explores the work of Michael Faraday and James Clerk Maxwell in unifying magnetism and electricity
Looks at the quantum mechanical aspects of magnetism
Considers its importance in modern technology, including magnetic storage in computers and the magnetic fields of planets and stars
Part of the bestselling Very Short Introductions series - over five million copies sold worldwide
Magnetism is a strange force, mysteriously attracting one object to another apparently through empty space. It has been claimed as a great healer, with magnetic therapies being proposed over the centuries and still popular today. Why are its mysterious important to solve?
In this Very Short Introduction, Stephen J. Blundell explains why. For centuries magnetism has been used for various exploits; through compasses it gave us navigation and through motors, generators, and turbines it has given us power. Blundell explores our understanding of electricity and magnetism, from the work of Galvani, Ampere, Faraday, and Tesla, and goes on to explore how Maxwell and Faraday's work led to the unification of electricity and magnetism, thought of as one of the most imaginative developments in theoretical physics.
With a discussion of the relationship between magnetism and relativity, quantum magnetism, and its impact on computers and information storage, Blundell shows how magnetism has changed our fundamental understanding of the Universe.
Readership: Students of the physical sciences and engineering as well as to general readers interested in this topic.
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目录
1: Mysterious attraction?
2: The Earth as a magnet
3: Electrical current and the path to power
4: Unification
5: Magnetism and relativity
6: Quantum magnetism
7: Spin
8: The magnetic library
9: Magnetism on Earth and in space
10: Exotic magnetism
Mathematical Appendix
Further reading