Barlow’s wheel


This apparatus is made of a circuit that includes a copper toothed wheel. The mobile contact of the edge of teh copper disk is made of mercury placed in a tank of conducting material (plastics),and causes a flow through the apparatus. On a wooden base.15 x 10cm. Signed griffin & george ltd, london, made in england ca. 1950.

SKU: 00 270915 a S Categories: ,

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