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 ...

An electric charge (like a proton) creates an electric field in the region around it. This field points away from positive charges and decreases in strength as it gets farther away from the charge.

[url=http://arstechnica.com/civis/viewtopic.php?p=27043803#p27043803:194r9wv6 said: weathertop[/url]":194r9wv6]"Dude, we've been trying to get a hold of you for 6 ...

Say you wanted to protect your Wi-Fi network from surrounding buildings. The most obvious way to do this would be to secure the devices on your network using the wireless security protocol of choice.

And for the thriftier, more conservative concerned citizen, there is a range of lovely signal-blocking pouches, some of dubious functionality. Click to expand... I'm still waiting for a lovely ...