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.

Researchers from Portland State University claim to have developed a method of raising solar plant energy yield around 5% while reducing panel degradation by more than 0.3% per year The academics have ...

In storms or other turbulence, pilots need to know how the plane is orientated and the angle at which the plane is tilted toward Earth’s surface. If the plane’s nose is tilted downward at a 45-degree ...

Introduction Change of direction (COD) manoeuvres are important for many field sports, however they are unfortunately associated with non-contact ACL injuries. Although players frequently COD at >90° ...

Wavelength and propagation direction (angle) are two fundamental properties of light. The ability to selectively control both a specific wavelength and a specific angle forms the physical foundation ...

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 ...

Researchers have cracked a fundamental optical challenge: how to control both angle and wavelength of light independently—a problem that’s limited imaging and display technologies for years. By ...