Elementary natural philosophy : designed for high schools and academies (1881)
Griffin, La Roy F. (La Roy Freese), 1844-1916 · Philadelphia : Sower, Potts & Co. · leaf 272
, Fig. *The hard carbon formed on the inside of iron gas retorts,toee Section 893. 262 ELECTRICITY. 321, and in section at theright, acts by the production* of electricity through heat.The instrument consists ofa large number of bars ofantimony and bismuth sol-* dered together in alternateorder.… … Fig. 321. 886. The effects of the current depend upon its greatquantity. They may be conveniently divided into Mag-netic, Heating, Luminous, and Chemical. 887, The Magnetic Effects are the deflection of theneedle, and the making of magnets. 888. Oersteds Galvanometer,Fig. 322, is used to determine…
Physics
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