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 ...

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

Traffic Lab is a Seattle Times project that digs into the region’s transportation issues to explore the policies and politics that determine how we get around and how billions of dollars in public ...

In 2013, Frozen captivated audiences worldwide with a modern take on Hans Christian Andersen’s The Snow Queen. The original film tells the story of Anna as she teams up with iceman Kristoff, his ...