Henderson, C. Hanford (Charles Hanford), 1861-1941, Woodhull, John F. (John Francis), 1857-1941 · New York, D. Appleton and company · leaf 255
is shownby an experiment with theapparatus illustrated inFig. 140. A neutral ballupon an insulated sup-port is covered with twometal hemispheres. It iselectrified either before or after the hemispheres are puton; but when the hemispheres are removed by the glasshandles they alone are found to be… … STATIC ELECTRICITY 233
Physics
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