Читать книгу Genuine Mediumship; or, The Invisible Powers - Atkinson William Walker - Страница 48

Likewise, in the case of the wireless telegraphy, the electric energy produced by the sending instrument is transformed into subtle and finer etheric waves, which travel to the receiving instrument, and are there transformed into electric waves, the latter producing physical changes in the receiving apparatus which enable them to be read by the observer. In the case of wireless telephony there is still more complex process of transformation, as follows: the speaker conveys sound vibrations into the instrument; these are transformed into electric vibrations; and the latter into the etheric vibrations which travel through space to the receiver. Reaching the receiver, the etheric vibrations are transformed into ordinary electric vibrations, and these in turn into sound waves capable of being sensed by the listener.