Shielding is crucial for all manner of electronic devices. Whether you want to keep power supply noise out of an audio amplifier, or protect ICBMs against an electromagnetic pulse from a nuclear ...

Many people have been wondering what a Faraday cage is and why they are important for emergency preparedness. A Faraday cage is a sealed enclosure that conducts electricity to the outer layer. Some ...

I wrapped my router in foil; download dropped ~50% and ping rose ~67%, so the signal was partially blocked. Upload barely changed; upload speed seemed ISP-limited, not much affected by the foil. My ...