nonoise
A quick look at Wiki states that any hole or vent has to be significantly smaller than the RFI/EMI wavelength in order to stop it. Good luck with that. It enters through any connector not used as well as any cable not completely shielded. Also, AC brings it through your PC.
All bets are off how small or big a space has to be to stop or prevent or disallow an electromagnetic wave once the Schumann frequency raised its ugly head. You know, the 7.8 Hz wave that sets up in a listening room when generated by a Schumann frequency generator, since the wavelength of that particular frequency is around, what 26,000 miles? Yet it has no problem fitting into the room. Yeah, baby!
A quick look at Wiki states that any hole or vent has to be significantly smaller than the RFI/EMI wavelength in order to stop it. Good luck with that. It enters through any connector not used as well as any cable not completely shielded. Also, AC brings it through your PC.
All bets are off how small or big a space has to be to stop or prevent or disallow an electromagnetic wave once the Schumann frequency raised its ugly head. You know, the 7.8 Hz wave that sets up in a listening room when generated by a Schumann frequency generator, since the wavelength of that particular frequency is around, what 26,000 miles? Yet it has no problem fitting into the room. Yeah, baby!