As companies rush to refashion themselves for the digital age, two news stories from last week remind us why businesses shouldn't ignore the physical world as they focus on the digital. Our first ...

Former student Vishwanath Akuthota of The College of Saint Rose is charged with destroying more than $58,000 of computer equipment at his alma mater with a malicious USB drive called a USB Killer. The ...

[url=http://arstechnica.com/civis/viewtopic.php?p=29944645#p29944645:2c9cfkq5 said: kriket011[/url]":2c9cfkq5]It could be useful in a situation when one needs to ...

The reason he's using negative 220 volts (he could just as easily have made it +220 by reversing the leads) is that he's pulling the GND down. The GND connection is the only thing that's common to all ...