Photoplethysmography (PPG) is an optical sensing technique that measures blood volume changes and underpins devices ranging ...

Scientists at the University of Oxford demonstrate an approach to interpreting how materials interact with polarized light, ...

Polarized light is one of the most powerful tools scientists have for peering inside matter, yet the way it twists, scatters ...

Researchers at Brown University have developed a wearable sensor that uses polarized light to improve the accuracy of ...

A new mechanism steers diodes made of a single enantiomer to emit light of right- and left-handed polarizations ...

Ezra Klein answers your questions on the year’s political lessons, the struggles of young men and handling heat on the show.

The release, to meet a deadline set by Congress, was just the first tranche of what the administration is saying will be a ...

Elon Musk's political activity has cost Tesla over 1 million electric-car sales since 2022, according to one study.

A chip-scale interface entangles light and electronic states without cryogenic cooling, bringing quantum networking hardware closer to practical deployment ...

Houston's offense targets a vulnerable Raiders secondary, aiming to exploit their third-down struggles and withstand Maxx ...

Scientists have recently discovered an interaction between an electromagnetic wave and its own magnetic component as it passes through a material, updating a 180-year-old assumption that only ...