Since the time of WW11 it has been known that people can hear RADAR and other types of microwave transmission.

In 1962 Allan H Frey carried out a series of experiments which proved that microwaves can produce the illusion of sound even in those who are deaf.

It is not proposed here that the Hum is caused by microwaves, but only to show that the human brain can interpret sound other than that of the usual sound waves and vibrations.

For 2 papers by Allan H Frey click here

For a paper by Clyde E Ingalls Clyde E Ingalls

also for a paper Hearing sensations in Electric Fields
by H C Sommer and H E Von Gierke click here

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