(Nanowerk Spotlight) The controlled rotation of micro- and nanoscale objects plays a crucial role in sensing, imaging, biomedicine, and manufacturing. Micro- and nanorotors have proved effective in ...

(Phys.org) —Researchers in Scotland have devised a way to use the Doppler Effect to discern the spin speed of a rotating object where the object is directly facing the light source. In their paper ...

Light, as we usually conceive of it, is defined by the astonishing velocity at which it moves from one point to another. For example, in just one second, light can travel most of the distance between ...