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... transformation of electrical energy into light...

... bubbles. Nowhere does the system possess any... proposals for the electrical telegraph, in... currents cause the electrodes to change...

... are but not knowing what we see. The authenticity... The low-voltage electrical current is... reality. Because of its strict square grid...

... that balloons and electrical coils seemed...

... the handle generates electrical energy that... pattern of smell is used for generation of sound...