>>4127987

Clarence Hansell

https://patents.google.com/?inventor=Clarence+W+Hansell&oq=inventor:(Clarence+W+Hansell)

https://en.wikipedia.org/wiki/Clarence_Hansell

Take a look at Hansell's patents. He has almost as many patents as Edison, most stemming from his work at RCA in 1930s-1950s. In particular take a look at "Communication system by pulses through the earth"

https://patents.google.com/patent/US2389432A/en

>>4128025

thousand points of light

>>4128032

Take a look at ELF waves and submarine communication. The base tech has been used in military applications for years.

https://en.wikipedia.org/wiki/Extremely_low_frequency#Submarine_communications

>>4128061

did they look like big versions of the attached picture?

>>4128088

Cool, thank you anon. I am trying to push through these 380+ patents looking for leads. The man was a f'n genius.

>>4128205

I think it is highly plausible.

see >>4127330 (lb)