Hertz, Heinrich, 1857-1894, Jones, Daniel Evan, b. 1863, Schott, George Adolphus, 1868- tr · London: Macmillan, New York, Macmillan and co. · leaf 277
ong several straightlines perpendicular to the parallel ones, instead of along oneonly. Thus the value of the potential at every point could bedetermined in a corresponding number of independent ways.By adjusting these we obtain not only a trustworthy result,but a measure of the uncertainty… … In these a denotes the blue cathode light, /3 the positivestriae; the curved lines are equidistant equipotential lines.In a and c the pressure amounted to one-tenth of a millimetre ; hence in these thecathode rays have freeends. In b the pressurewas reduced so muchthat the battery couldonly barely…
Electricity · Physics
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