Experimental science. Elementary, practical and experimental physics (1890)
Hopkins, George M. (George Milton), 1842-1902 · New York, Munn & co. · leaf 380
en cool may be removedfrom the magnet and pre-served. FLOATING MAGNETS. The ordinary magneticfish, ducks, geese, boats, etc.,are examples of floating mag-nets, which show in a verypleasing way the attractionand repulsion of the magnet.The little bar magnet accom-panying these toys serves as a…
Physics · Lantern projection · Electric apparatus and appliances
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