Experimental methods. If the vibrating switches off-turn on the electrical circuit. Laeokrasae light through the coils are changes as the rhythm by and caused the change in magnetic field in iron ring is induced causing moving electric high voltage air between the sparkling Strait has electricity flowing through an electric spark caused by cross-channel khaepklap krasaekradot go back, change the electric and the magnetic induction are changed. Summary trial of electromagnetic waves, Hertz ' caused by induction. Between the electric and magnetic field that changes.
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