Discoveries and inventions of the nineteenth century (1905)
Routledge, Robert · London : G. Routledge and Sons · leaf 592
the middle A of the piano. With the rate of oscillation thus reduced,it became easy to render the discontinuity of the discharge visible by meansof revolving mirrors, as in the well-known acoustical demonstrations. Professor Lodge has devised an experiment which again shows theanalogy of electrical… … two exactly similar Leyden jars, the inner and outer coatings of each being,connected by a wire enclosing a considerable area in its circuit, which inthe case of A contains an air gap across which sparks pass when thecoatings are connected with the poles of an electrical machine. Thecircuit of B is…
Inventions
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