The Path of Evolution Through Ancient Thought And Modern Science
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In our eReader you can find the full English version of the book. Read The Path of Evolution Through Ancient Thought And Modern Science Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book The Path of Evolution Through Ancient Thought And Modern Science
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If an electric current from any source is caused to pass through an insulating-covered wire (a conductor), making many spiral coils around a rod or other mass of iron, the iron, if soft and pure, will become a strong magnet, but will lose its magnetism instantly on interruption of the electric flow. On this property de- pends to a great extent the application of electricity to the dynamo, the telegraph and most of its other uses. If steel or hard iron is used in place of soft iron, it will acqu...ire permanent magnetism. It is thus that magnets now are practically made. How or why the Black oxide of iron and why hard iron should pos- sess this strange power of retaining magnetism per- manently, themselves undergoing no chemical or physical change, is inexplicable. Within the last twenty years the application of Electricity and of electro-magnetism to new and important uses have been so numerous as nearly to revolutionize the pro- 186 ELECTR O-MA GNE TISM cedures of our daily life. They far surpass any cor- responding advance in our theories or knowledge of the nature of Electricity itself.
What to read after The Path of Evolution Through Ancient Thought And Modern Science?
You can find similar books in the "Read Also" column, or choose other free books by Henry Pemberton to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
If an electric current from any source is caused to pass through an insulating-covered wire (a conductor), making many spiral coils around a rod or other mass of iron, the iron, if soft and pure, will become a strong magnet, but will lose its magnetism instantly on interruption of the electric flow. On this property de- pends to a great extent the application of electricity to the dynamo, the telegraph and most of its other uses. If steel or hard iron is used in place of soft iron, it will acqu...ire permanent magnetism. It is thus that magnets now are practically made. How or why the Black oxide of iron and why hard iron should pos- sess this strange power of retaining magnetism per- manently, themselves undergoing no chemical or physical change, is inexplicable. Within the last twenty years the application of Electricity and of electro-magnetism to new and important uses have been so numerous as nearly to revolutionize the pro- 186 ELECTR O-MA GNE TISM cedures of our daily life. They far surpass any cor- responding advance in our theories or knowledge of the nature of Electricity itself.
What to read after The Path of Evolution Through Ancient Thought And Modern Science?
You can find similar books in the "Read Also" column, or choose other free books by Henry Pemberton to read onlineMoreLess
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