Can light itself cast a shadow? It may sound like a philosophical riddle, but researchers have found that under certain ...

Renowned sci-fi author Philip K Dick was known for his bizarre beliefs, but none more so in 'The Exegesis', where he thought he'd travelled through time.

Researchers have found that under certain conditions, a laser beam can act like an opaque object and cast a shadow, opening new possibilities for technologies that could use a laser beam to control ...

The technique works because the green laser (wavelength 532 nanometers) changes the way the crystal responds to some other ...

This could enable new tech for controlling light with light, opening doors to advanced fabrication, imaging, and illumination ...

With the help of a ruby cube and two laser beams, researchers made one ray of light cast a shadow when illuminated by the ...

Shadows are a natural consequence of opaque walls in an illuminated Universe. Light shines; photons travel until they hit an ...

Learn about the legal requirement to dim your headlights. Avoid hefty fines and ensure safe driving practices on the road ...

WASHINGTON - Can light itself cast a shadow? It may sound like a philosophical riddle, but researchers have found that under certain conditions, a laser beam can act like an opaque object and cast a ...

Scientists discovered a way to encode more data into light by creating light vortices with quasicrystals. This method could ...

HOK and Snow Kreilich Architects teamed up to create an urban sports campus and stadium for a Major League Soccer club in St ...

University of Pennsylvania researchers use AI-processed radio waves to enable robots "see" in 3D, navigating smoke, glass, ...