Photonics researchers have demonstrated how self-imaging of light, a phenomenon known for nearly two centuries, can be applied to cylindrical systems, facilitating unprecedented control of light's ...

"The power lines guide the viewer into the center of the frame," says Ben. Identifying strong lines within the scene is vital ...

A classic example of the coolness of eyewear, Marcello Mastroianni’s thick black glasses in 8 1/2 showed the world that an ...

For more than a century, scientists have understood that three factors control pupil size: light, focus distance, and cognitive processes like emotions or mental effort. Now, researchers at Karolinska ...