A Graduate Course of Natural Science Experimental And Theoretical for Schools
A Graduate Course of Natural Science Experimental And Theoretical for Schools
Benjamin Loewy
The book A Graduate Course of Natural Science Experimental And Theoretical for Schools was written by author Benjamin Loewy Here you can read free online of A Graduate Course of Natural Science Experimental And Theoretical for Schools book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is A Graduate Course of Natural Science Experimental And Theoretical for Schools a good or bad book?
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Thus, through paper, wood, india-rubber, gutta-percha, the skin of the human body, and similar substances, current electricity is so little able to travel that these bodies behave in reference to it like insulators. Pure water is a very bad conductor of galvanic electricity. Metals, carbon, and solutions of various salts and acids (sulphuric, nitric, and hydrochloric) concentrated or diluted are the only bodies available for conducting galvanic electricity. The solutions of salts and acids are ...very much better conductors than water ; but even their conductivity is many hundred thousand and even many million times less than that of the metals. Of all known substances silver is the best conductor of galvanic electricity ; copper stands next and very near to it in conducting power. Copper wire is pre- 188 COURSE OF NATURAL SCIENCE PART n ferably used for conducting galvanic electricity not only on account of its excellent conductivity, but also because the metal possesses great malleability and ductility that is, the two properties of being easily hammered into any required shape, and as* easily drawn out into wires of any required diameter.
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