Almost Lifesize Pix of the Vibroplex Vertical and Midget
These two bugs were already featured a page or two ago, but
they are rare and sought after enough to deserve a place just to themselves.
A left-handed Vertical resides in the Gil Schlehman collection. Probably
about twenty Verticals are currently accounted for in collections. Two Midgets
are known to exist, with another two likely for a total of four.
When an insulated sphere of conducting material is charged with electricity, the charge passes to the surface of the sphere and forms an extremely thin layer. Boit proved that the
charge resides on the surface (click 'go'). A copper ball is electrified and insulated. Two hollow hemispheres of copper of a larger size, provided with insulated handles, are then placed near the sphere. So long as they do not touch the sphere, the
charge remains on the sphere. But if the hemispheres touch the inner sphere, the whole
of the electricity passes to the exterior, and when the hemispheres are separated and removed the inner globe is found to be completely discharged. From 'Hawkin's Electrical
Guide #1' (1914).
On to big pix of the Coffe and Melehan
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