[PVRCNC] Ever see an 8 Hz antenna?

[Brian Alsop]

PBS has a show called "Edge of Space".

If you could make it to near the end of the program (very repetitive 
about "sprite lightning"), there was a segment on ELF waves in the 
earth's resonant cavity.  Apparently the earth-ionosphere form a cavity 
that has a fundamental mode of 7.8 Hz.  It is excited by extreme 
lightning bolts.

There was a picture of the apparatus including an antenna used to 
monitor this. (actually their second antenna, the first got zapped by 
lightning). Looks like you could do this yourself.

73 de Brian/K3KO





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