Astronomers search for gravitational-wave memory

Astronomers regularly observe gravitational waves (GW)—ripples in space and time—that are caused by pairs of black holes merging into one. Einstein's theory of gravity predicts that GW, which squeeze and stretch space ...

Decoding multiple frames from a single, scattered exposure

Engineers at Duke University have developed a way to extract a sequence of images from light scattered through a mostly opaque material—or even off a wall—from one long photographic exposure. The technique has applications ...

Self-healing gold particles

Self-healing materials are able to repair autonomously defects, such as scratches, cracks or dents, and resume their original shape. For this purpose, they must be composed of several components whose combined properties ...

Researchers demonstrate 'shape memory' effect in gold particles

Researchers from the Technion-Israel Institute of Technology and Germany have demonstrated for the first time the phenomena of shape memory and self-healing in gold microparticles. Achieved through defects-mediated diffusion ...

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