Researchers have succeeded in directing floating objects around an aquatic obstacle course using only soundwaves. Their novel, optics-inspired method holds great promise for biomedical ...

Using light or sound waves, they can lift and control the motion of a small object, like a tiny tractor beam. These are exciting developments, but have very stringent requirements to work.

A hand truck makes it possible to move heavy objects struggle-free Moving heavy objects from place to place can be difficult, even for strong individuals. Fortunately you won’t struggle to ha… ...