WASHINGTON — Researchers have developed a way to use laser light to pull a macroscopic object. Although microscopic optical tractor beams have been demonstrated before, this is one of the first times ...

Engineers at the University of Minnesota have developed a new system that can move objects without making physical contact. The technique involves ultrasound waves acting on specialized surfaces to ...

Strong arms are not just about appearance, they play an important role in daily activities like lifting groceries, carrying children or even pushing and pulling objects. Having well-developed arm ...