Category Physics

Liangbing Hu, left, and Teng Li, right, are engineers at the University of Maryland, College Park who have found a way to make wood more than 10 times stronger and tougher than before. Credit: University of Maryland

New process could make wood as strong as titanium alloys but lighter and cheaper. Engineers at the University of Maryland, College Par (UMD) have found a way to make wood more than 10X stronger and tougher than before, creating a natural substance that is stronger than many titanium alloys. “This new way to treat wood makes it 12 times stronger than natural wood and 10 times tougher,” said Liangbing Hu of UMD’s A. James Clark School of Engineering and the leader of the team that did the research, to be published on February 8, 2018 in the journal Nature...

This is a ball-and-stick model of the molecular structure of the solar-fuel catalyst developed at Caltech. Blue represents iron atoms; green is nickel; red is oxygen; white is hydrogen. Credit: Caltech

Research uncovers mechanism behind water-splitting catalyst. Caltech researchers have made a discovery that they say could lead to the economically viable production of solar fuels in the next few years. For years, solar-fuel research has focused on developing catalysts that can split water into hydrogen and oxygen using only sunlight. The resulting hydrogen fuel could be used to power motor vehicles, electrical plants, and fuel cells. Since the only thing produced by burning hydrogen is water, no carbon pollution is added to the atmosphere.

In 2014, researchers in the lab of Harry Gray, Cal...

MIT Media Lab spinout Ori is developing smart robotic furniture that transforms into a bedroom, working or storage area, or large closet — or slides back against the wall — to optimize space in small apartments. Credit: Ori

Imagine living in a cramped studio apartment in a large city—but being able to summon your bed or closet through a mobile app, call forth your desk using voice command, or have everything retract at the push of a button. MIT Media Lab spinout Ori aims to make that type of robotic living a reality. The Boston-based startup is selling smart robotic furniture that transforms into a bedroom, working or storage area, or large closet—or slides back against the wall—to optimize space in small apartments.

Based on years of Media Lab work, Ori’s system is an L-shaped u...

This diagram maps out atomic motion in separate phonon modes. At left (“LO” represents a longitudinal optical mode), selenium atoms exhibit a clockwise rotation while tungsten atoms stand still. At right (“LA” represents a longitudinal acoustic mode), tungsten atoms exhibit a clockwise rotation while selenium atoms rotate in a counterclockwise direction. Credit: Hanyu Zhu, et al.

Experiments confirm the first chiral phonon that could enable exotic forms of electronics. Berkeley Lab has found the first evidence that a shaking motion in the structure of an atomically thin (2D) material possesses a naturally occurring circular rotation...