Anne Eisenberg Nyt News Service

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...

Smartphones are getting smarter. Now some new models even offer games or television broadcasts in three dimensions -- and you don't need special glasses to see the show.Traditional 3-D technology used for movie screens and television superimposes or alternates two views, using filters or shutters in the glasses to select a view for each eye. This c...

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...

Smartphones are getting smarter. Now some new models even offer games or television broadcasts in three dimensions -- and you don't need special glasses to see the show.Traditional 3-D technology used for movie screens and television superimposes or alternates two views, using filters or shutters in the glasses to select a view for each eye. This c...