Physics

High-speed video study reveals the nature of the cobra wave

A small team of researchers from multiple institutions in France has learned more about the properties of the "cobra wave" by building structures from popsicle sticks and filming wave progressions with a high-speed camera. In their paper published in the journal Physical Review Letters, Jean-Philippe Boucher, Christophe Clanet, David Quéré and Frédéric Chevy describe the series of experiments they carried out with the sticks and what they learned in the process.

Molecules chilled below Doppler limit

A team of researchers working at the Centre for Cold Matter, Blackett Laboratory, Imperial College London, has found a way to chill molecules much closer to absolute zero. In their paper published in the journal Nature Physics, the team describes the two-step technique they used to achieve the feat and offer some ideas on how it might be used by others in the near future.

New x-ray laser technique reveals magnetic Skyrmion fluctuations

A new way of operating the powerful X-ray laser at the Department of Energy’s SLAC National Accelerator Laboratory has enabled researchers to detect and measure fluctuations in magnetic structures being considered for new data storage and computing technologies.

New X-ray laser technique reveals magnetic skyrmion fluctuations

A new way of operating the powerful X-ray laser at the Department of Energy's SLAC National Accelerator Laboratory has enabled researchers to detect and measure fluctuations in magnetic structures being considered for new data storage and computing technologies.

Flood-damaged documents, books may be salvageable with electron beam technology

Documents, books and similar items soaked and muddied in the potentially sewage-laden flood waters produced by Hurricane Harvey may be salvageable with the use of electronic beam technology.

New neutron holography technique opens a window for obtaining clear 3-D atomic images

People usually associate holograms with futuristic 3-D display technologies, but in reality, holographic technologies are now being used to study materials at the atomic level. X-rays, a high-energy form of light, are often used to study atomic structure. However, X-rays are only sensitive to the number of electrons associated with an atom. This limits the use of X-rays for studying materials made up of lighter elements.

NASA Awards $400,000 to Top Teams at Second Phase of 3D-Printing Competition

NASA is making progress and awarding prizes in its competition to build a 3-D printed habitat for deep space exploration.

NASA Awards $400,000 to Top Teams at Second Phase of 3D-Printing Competition

NASA is making progress and awarding prizes in its competition to build a 3-D printed habitat for deep space exploration.

Optical control of magnetic memory—New insights into fundamental mechanisms

This is an important clue for our theoretical understanding of optically controlled magnetic data storage media. The findings are published at August 25th in the journal Scientific Reports.

New neutron holography technique opens a window for obtaining clear 3-D atomic images

New work at particle accelerator facilities shows that neutron holograms can reveal the precise atomic structure of doped materials, offering a new characterization technique for materials scientists.

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