A Treatise on Electricity and Magnetism: Frontmatter
A Treatise on Electricity and Magnetism: Frontmatter
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DOI：
10.1017/cbo9780511709333
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通讯作者：
J. Maxwell
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作者：
J. Maxwell
某些物体被摩擦后，似乎会吸引其他物体，这一事实为古人所知。在现代，人们观察到各种各样的其他现象，并发现它们与这些吸引力现象有关。它们被归类为电现象，琥珀，λеKтρov，这是它们最初被描述的物质。其他物体，特别是磁石，以及经过某些过程的钢铁碎片，也早就知道会表现出远距离作用的现象。这些现象，以及与之相关的其他现象，被发现与电现象不同，并被归类为磁现象，loadstone, máyvns，发现于Thessalian Magnesia。这两类现象后来被发现是相互联系的，这两类现象之间的关系，就它们所知，构成了电磁学。
THE fact that certain bodies, after being rubbed, appear to attract other bodies, was known to the ancients. In modern times, a great variety of other phenomena have been observed, and have been found to be related to these phenomena of attraction. They have been classed under the name of Electric phenomena, amber, λеKтρov, having been the substance in which they were first described. Other bodies, particularly the loadstone, and pieces of iron and steel which have been subjected to certain processes, have also been long known to exhibit phenomena of action at a distance. These phenomena, with others related to them, were found to differ from the electric phenomena, and have been classed under the name of Magnetic phenomena, the loadstone, máyvns, being found in the Thessalian Magnesia. These two classes of phenomena have since been found to be related to each other, and the relations between the various phenomena of both classes, so far as they are known, constitute the science of Electromagnetism.