If there's one hiking accessory that you should always remember to pack in your sack, it's the humble head torch. Even if you ...

Holographic beam-steering is an attractive way to steer optical beams and potentially to engineer the channel matrix in optical multi-input multi-output systems. In visible-light communications, a ...

The head of the National Transportation Safety Board is blaming systemic failures for a door plug blowout in the skies over Portland in January 2024.