The need is growing fast for economical, large-scale backup systems to provide power when the sun is down and the air is calm.

As the world builds out ever larger installations of wind and solar power systems, the need is growing fast for economical batteries.

Imagine walking into an airport or grocery store and your smartphone automatically starts charging. This could be a reality one day.

The potential of millimeter-wave wireless power transfer as a solution for the Internet of Things has finally been harnessed by researchers.

Today, it’s difficult to engineer resilient and long-lasting components that can control the powerful beams that lasers emit.

Dominant or upright postures can help people feel - and maybe even behave - more confidently, according to a new study and analysis.