Add Yahoo as a preferred source to see more of our stories on Google. Optical Trap. Catching a micron-sized particle is challenging. To get the job done, two laser beams come in handy. Acting like ...

Bead lightning: Resembling pearls on a string, it is merely a particular aspect of normal lightning seen when the observer happens to view a number of segments of the irregular lightning channel and ...

A single green laser, a glass bead smaller than a bacterium and a lab in Austria are helping you see lightning in a new way. Scientists have found a way to watch an object build electric charge in ...