Electric toy making for amateurs. This work treats on the making of electrical toys, electrical apparatus, motors, dynamos and instruments in general ... By T. O'Conor Sloane .. (1914)
Sloane, T. O'Conor (Thomas O'Conor), 1851-1940 · New York, The N.W. Henley publishing co. · leaf 36
small cork, so that only a little bit of the eye endprojects above one surface of the corks. They arethen floated in a vessel of water as shown, the likepoles coming above the surface. Under the effectof repulsion and attraction, they float into the mostsymmetrical shapes, some of which are shown… … Fig. 12. Mayers Magnetic Needles. These floating needles are due to Prof. A. M.Mayer, of the Stevens Institute, N. J., and will wellrepay investigation. Magnetic Fishes and the Magnetic Swan, Boat, etc. A few words are enough to describe these well-known toys. The fishes or other objects are made…
Electric apparatus and appliances · Electric toys
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