Edgar Choueiri knows how things work; he’s a rocket scientist — officially, the Director of Princeton University's Electric Propulsion and Plasma Dynamics Laboratory. If NASA ever sends a person to Mars, Choueiri’s research probably will have played a role. But Kurt Andersen visited his lab recently to get a taste of the future right now. Choueiri’s hobby is acoustics. He has developed a way to render sound in three dimensions, and given Studio 360 listeners an exclusive first listen of his 3D audio technology.