The Air-Command field was fenced with electronic paralysis barriers and the entrance was heavily guarded.
"The Instant of Now"
Irving E. Cox, Jr.
We find such a theory at hand at the present time in the electronic theory of electricity, which has now been sufficiently developed and popularised to make it useful as a descriptive hypothesis.
"Hertzian Wave Wireless Telegraphy"
John Ambrose Fleming
This electronic hypothesis, therefore, affords a basis on which we can build up a theory affording an explanation of the nature of the intimate connection known to exist between ether, matter and electricity.
"Hertzian Wave Wireless Telegraphy"
John Ambrose Fleming