Scientists invent topological-cavity surface-emitting laser

Semiconductor lasers are the most widely used lasers due to their compact size, high efficiency, low cost and wide spectra. But they suffer low output power and low beam quality—two specifications difficult to improve simultaneously. ...

Face masks help jurors tell lies from truth

High court juries can detect when someone is lying, even when they're wearing a face mask, according to new research analysis by the University of Portsmouth.

Human facial expressions communicate complex emotion information

There are more than 7 billion people on the planet, and each of them has their own unique face. The sum of a person's eyes, nose, cheeks and mouth all individual to them. And now, new research shows that the emotion information ...

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