Name/Title
Revolving Wire FrameEntry/Object ID
2013.3.71Description
One of two instruments of this type in the Transylvania collection. In both the circular ercury troughs on the U-shaped magnets are of hard wood. The revolving wire in this nstrument consists of straight wires. This one is described and figured by Daniel Davis (A Manual of Magnetism, etc., Second Ed., Boston, 1848). In the other instrument (not illustrated) he wire frame consists of a spiral wire with two terminal points which dip into the mercury roughs. This so-called helical wire apparatus was devised and described by Francis Watkins Popular Sketch of Electro-Magnetism, Etc., London, 1828).Collection
Moosnick Museum - Scientific Apparatus
