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“#Shock-dissipating fractal cubes could forge high-tech armor” Simulations show how fractal structures of increasing complexity dissipate energy from shockwaves. Credit: Los Alamos National Laboratory Tiny, 3-D printed cubes of plastic, with intricate fractal voids built into them, have proven to be effective at dissipating shockwaves, potentially leading to new types of lightweight armor and structural…
“#Cooling mechanism increases solar energy harvesting for self-powered outdoor sensors” An illustration of thermoelectric devices using a wavelength-selective emitter and a broadband emitter. The device using a broadband emitter experiences a voltage drop due to environmental temperature changes, while the device with a selective emitter remains constant thanks to daytime radiative cooling. Credit: Satoshi Ishii…
“#Physics team observes extremely fast electronic changes in real time in a special material class” Topological materials such as tungsten ditelluride, here a sample in an ultra-high vacuum chamber, have special electronic properties and are very robust against external perturbations. Credit: AG Bauer In physics, they are currently the subject of intensive research; in electronics,…
“#Behind the dead-water phenomenon” What makes ships mysteriously slow down or even stop as they travel, even though their engines are working properly? This was first observed in 1893 and was described experimentally in 1904 without all the secrets of this “dead water” being understood. A French team has explained this phenomenon for the first…
“#Researchers study effects of cellular crowding on the cell’s transport system” The researchers used high resolution microscopy and laser optical tweezers to study motor proteins. Credit: George Shubeita As many diseases, including neurodegenerative diseases such as Alzheimer’s, have been linked to the defective functioning of motor proteins in cell transport systems, understanding the intricacies of…
“#Flashes bright when squeezed tight: How single-celled organisms light up the oceans” Researchers showed how a single-celled organism of the species Pyrocystis lunula produces a flash of light when its cell wall is deformed by mechanical forces. Through systematic experimentation, they found that the brightness of the flash depends both on the depth of the…
“#Spintronics: Faster data processing through ultrashort electric pulses” Credit: CC0 Public Domain Physicists at Martin Luther University Halle-Wittenberg (MLU) and Lanzhou University in China developed a simple concept that could significantly improve magnetic-based data processing. Using ultrashort electric pulses in the terahertz range, data can be written, read and erased very quickly. This would make…
“#A path to new nanofluidic devices applying spintronics technology” Credit: CC0 Public Domain Researchers in the ERATO Saitoh Spin Quantum Rectification Project in the JST Strategic Basic Research Programs have elucidated the mechanism of the hydrodynamic power generation using spin currents in micrometer-scale channels, finding that power generation efficiency improves drastically as the size of…
“#Thermophones offer new route to radically simplify array design, research shows” The team of researchers used devices, known as thermophones, to create a fully controlled array from just a thin metal film attached to some metal wires. Credit: David Tatnell Scientists have pioneered a new technique to produce arrays of sound produced entirely by heat….
“#Energy-saving servers: Data storage 2.0” Diagram of a device architecture which employs the piezoelectric effect. Credit: Universitaet Mainz Whether it’s sending the grandparents a few pictures of the kids, streaming a movie or music, or surfing the Internet for hours, the volume of data our society generates is increasing all the time. But this comes…