04/11/2019

Why is ice so slippery?

The answer lies in a film of water that is generated by friction, one that is far thinner than expected and much more viscous than usual water through its resemblance to the "snow cones" of crushed ice we drink during the ...

Light-based 'tractor beam' assembles materials at the nanoscale

Modern construction is a precision endeavor. Builders must use components manufactured to meet specific standards—such as beams of a desired composition or rivets of a specific size. The building industry relies on manufacturers ...

Tethered chem combos could revolutionize artificial photosynthesis

Scientists at the U.S. Department of Energy's Brookhaven National Laboratory have doubled the efficiency of a chemical combo that captures light and splits water molecules so the building blocks can be used to produce hydrogen ...

Commemorating 30 years of optical vortices: A comprehensive review

Commemorating the 30th anniversary of the prediction of optical vortices, researchers in China—Xing Fu at Tsinghua University, Xiaocong Yuan at Shenzhen University and co-authors—reviewed the 30-year development of the understanding ...

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