What’s your vote for the most ridiculous, overpriced, and useless tweak?

Just popping in Pop! 🍾 to say the 20 kHz frequency is acoustic so it’s wavelength is actually very short, 1.7 cm. On the other hand, the Schumann frequency 7.8 Hz is in the electromagnetic spectrum so it’s wavelength is extremely long, I.e. circumference of the earth 🌎 . 😳 With climate change and more extreme weather I suspect the amplitude of the Schumann frequency is at an all time high, given that the Schumann frequency is primarily a function of lightning storms. ⛈

Pop quiz  🤗 If the real Schumann frequency wavelength is 25,000 miles how does the Schumann frequency generator produce a frequency of 7.8 Hz in the room? Hint - the length of the antenna required is proportional to the wavelength.

Oups! I think that it is evident that I am no physicist....My mistake...But what for the rest of my saying? the body is also an apparatus very sophisticated able to react to sensible information change...

You missed my pop quiz, please go back...😀

«The wavelengths of sound frequencies audible to the human ear (20 Hz–20 kHz) are thus between approximately 17 m and 17 mm, respectively.»

my room is only very short of the 17 meter... How that 20 hz audible frequencies fit in it? it is here that wavelet analysis help a little no?

For your popquiz, I dont know where it is and you will be forced to repeat that for me...My best to you...