Posted by:
torturednevermo
(
)
Date: January 15, 2015 11:51AM
And planet earth’s electromagnetic field resonates at 7.8 Hz
http://en.wikipedia.org/wiki/Schumann_resonances"Schumann resonances are the principal background in the electromagnetic spectrum beginning at 3 Hz and extend to 60 Hz, and appear as distinct peaks at extremely low frequencies (ELF) around 7.83 (fundamental), 14.3, 20.8, 27.3 and 33.8 Hz."
But these are drowned out by the 60 Hz spike from all the electricity running through your house. My piano tuning software picks this up quite nicely …it’s LOUD.