How ambient energy could power the Internet of things

In the modern world, we are increasingly surrounded by digital sensors, cameras and communications devices sending data cloud-based analysis services. Those devices need power, and designers are finding new ways to draw it ...

A stream of superfluid light

Scientists have known for centuries that light is composed of waves. The fact that light can also behave as a liquid, rippling and spiraling around obstacles like the current of a river, is a much more recent finding that ...

A trick of the light: How the hatchetfish hides

Hatchetfish, tiny "alien-looking" creatures known for an uncanny ability to hide out in open water, use mirror-like scales to deflect and diffuse light to make themselves invisible to predators, scientists reported Wednesday.

'Jumping film' harnesses the power of humidity

Scientists from the RIKEN Center for Emergent Matter Science (CEMS) and the University of Tokyo have developed a film that curls up and straightens out autonomously when exposed to tiny, barely measurable changes in ambient ...

The Compound Eye lossless digital imaging system

The imaging process is often affected by the field of view, wavefront aberration, ambient light, as well as the resolution of the optical imaging system and detector. In such cases, the image information of the object cannot ...

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