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.

A Faraday cage is a protective enclosure that prevents certain types of electromagnetic radiation from entering or exiting, according to the Florida State University Magnetic Field Laboratory. First ...

In the predawn darkness, you can see an eerie red glow shining from the windows of the Hudson, Wis., home of Thaddeus Owen and his fiancée, Heidi Sime. The couple are awake, having slept in their ...

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 ...

All products featured here are independently selected by our editors and writers. If you buy something through links on our site, Gizmodo may earn an affiliate commission. Reading time 4 minutes While ...

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.