Let's Learn is available to stream on pbs.org and the free PBS App, available on iPhone, Apple TV, Android TV, Android smartphones, Amazon Fire TV, Amazon Fire Tablet, Roku, Samsung Smart TV, and ...

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 shadow. The ...

National Recovery Technologies (NRT), Nashville, Tennessee, has added the ColorPlus- R to the company’s product offering. Similar to the ColorPlus, the ColorPlus-R uses an image processing system to ...

Researchers at Utrecht University, The Netherlands, and at TU Wien (Vienna, Austria) have created a special type of lightwaves that can penetrate opaque materials and pass through - as if the material ...

Researchers from Utrecht University and TU Wien (Vienna) have created special light waves that can penetrate opaque materials as if the material wasn't there. The beam of light can pass through a ...

Researchers from Carnegie Mellon University have been able to teach robots to pick up transparent or reflective objects. This has been a challenge for robots in the past, and the way researchers have ...

While this system works well enough on relatively dull opaque objects, it has problems with transparent items that much of the light passes through, or shiny objects that scatter the reflected light.

The new technique generates an image (top right) from the speckle pattern created when light from the coloured numerals (top left) is scattered by the mostly opaque surface in the middle. (Courtesy: M ...

AN optical system has been constructed which makes possible the examination at high resolution by interference of opaque objects, and which is capable of being mounted on an ordinary microscope stand.

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 ...