Many parents are getting ready to wrap up some tech gifts like VR headsets, smartphones, and tablets for their kids for ...

Former CIA Director James Woolsey discusses the potential catastrophe if an electromagnetic pulse took out the nation's electric grid. He speaks with WSJ's Gerald Seib at the CIO Network in San ...

He suspected EMF interference so as a quick first step he decided to throw together an EMF detector using an Arduino. It uses a bank of LEDs as an indicator bar to reflect the EMF picked up by the ...