Navigation requires a sense of direction (‘compass’), which in mammals is thought to be provided by head-direction cells, neurons that discharge when the animal’s head points to a specific azimuth.

Display maker comes up with a triple directional LCD that offers unique content based on the viewer's orientation to the screen. Not content with a screen that can show two images simultaneously, ...

Like a traffic cop directing cars, a layered stack of transparent materials permits light arriving from only a single direction to pass through. Such angle-sensitive filters could improve cameras and ...