The rotation of a supermassive black hole (SBH) has been definitively measured for the first time by combining x-ray data obtained by the x-ray space telescopes XMM-Newton (soft x-rays) and NuSTAR ...

(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 ...

Light corn syrup is used to rotate the plane of polarized light on the stage of an overhead projector. A polarizing filter allows only those photons with electric fields oscillating in a single plane ...

KITTERY, Maine — Our cultural image of the classic New England lighthouse typically includes the rotating beam which guided mariners to safety for generations. This traditional system was restored ...