Radia Waves

Matt Reynolds, an assistant professor in the electrical and computer engineering department at Duke University, wears other hats, too -- including that of co-founder of two companies. These days, his interest is in a real hat now in prototype: a hard hat with a tiny microprocessor and beeper that sound a warning when dangerous equipment is nearby o...

Matt Reynolds, an assistant professor in the electrical and computer engineering department at Duke University, wears other hats, too -- including that of co-founder of two companies. These days, his interest is in a real hat now in prototype: a hard hat with a tiny microprocessor and beeper that sound a warning when dangerous equipment is nearby o...