A European research team involving Hamburg University of Technology (TUHH) and Deutsches Elektronen-Synchrotron DESY has developed a novel way for converting mechanical energy into electricity—by using water confined in nanometer-sized pores of silicon as the active working fluid.
In a study published in Nano Energy, scientists from CIC energiGUNE (Spain), the University of Ferrara (Italy), the Hamburg University of Technology (TUHH) and DESY (Germany), the University of Silesia in Katowice (Poland), and Riga Technical University (Latvia), demonstrate that the cyclic intrusion and extrusion of water in water-repellent nanoporous silicon monoliths can produce measurable electrical power.
Not many people realise how much posture impacts the body and mind. The way you hold yourself for 90–99% of the day has a powerful effect on your hormones and mood. Hunching over can lower testosterone and raise cortisol, while standing tall with your spine straight and shoulders back helps increase testosterone and reduce cortisol. You’ll also notice that when you’re upright, your breathing becomes deeper and easier, supporting relaxation and reducing stress. Slouching restricts breathing, leading to shallow breaths, lower oxygen levels, and negative effects on both energy and mood.
Slouching lowers testosterone:
Adjusting posture has the opposite effect: https://somaticmovementcenter.com/10-shocking-ways-posture-a…%20muscles, I%20gotten%20your%20attention%20yet?
Nervous about an upcoming presentation or job interview? Holding one’s body in “high-power” poses for short time periods can summon an extra surge of power and sense of well-being when it’s needed, according to Harvard Business School professor Amy J.C. Cuddy.
The effects of physical activity don’t stop when the movement does. In a new study published in the Proceedings of the National Academy of Sciences, Virginia Tech researchers, in collaboration with researchers at the University of Aberdeen and Shenzhen University, have found that being active adds to the total energy you use every day without causing the body to conserve energy in other ways.
This is important because the health benefits of increasing physical activity are already well-documented, but there is less research about how exercise impacts a person’s “energy budget,” or the allocation of energy to different bodily functions.
It has been thought that a person’s energy budget functions in one of two ways: like a fixed salary where energy is redistributed from other functions to cover the cost of movement, or like a flexible, commission-based system that is additive and allows for increased energy expenditure. The team wanted to determine which model better explains how the energy budget actually changes across different levels of physical activity.
Researchers have achieved a breakthrough in solar physics by providing the first direct evidence of small-scale torsional Alfvén waves in the sun’s corona—elusive magnetic waves that scientists have been searching for since the 1940s.
The discovery, published in Nature Astronomy, was made using unprecedented observations from the world’s most powerful solar telescope, the U.S. National Science Foundation (NSF) Daniel K. Inouye Solar Telescope in Hawaii.
The findings could finally explain one of the sun’s greatest mysteries—how its outer atmosphere, the corona, reaches temperatures of millions of degrees while its surface is only around 5,500°C.
New research, led by Queen Mary University of London, demonstrates that a double-layer electrode design, guided by fundamental science through operando imaging, shows remarkable improvements in the cyclic stability and fast-charging performance of automotive batteries, with strong potential to reduce costs by 20–30%.
The research, published today in Nature Nanotechnology, was led by Dr. Xuekun Lu, Senior Lecturer in Green Energy at Queen Mary University of London.
In the study, the researchers introduce an evidence-guided double-layer design for silicon-based composite electrodes to tackle key challenges in the Si-based electrode — a breakthrough with strong potential for next-generation high-performance batteries.
The potential of using low-energy light to shape ferroelectric thin films for micro devices is advancing with an international team of researchers most recently reporting success with “photostriction.”
Light-induced nonthermal deformation of materials, or photostriction, has the advantage of directly converting photon energy into mechanical motion, offering exciting possibilities for wireless, light-powered sensors and optomechanical devices, says Flinders University researcher Dr. Pankaj Sharma.
Since its discovery in the 1960s, scientists have explored photostriction in a wide range of materials—from semiconductors and oxides to ferroelectrics and polymers. However, many of these systems face challenges.
An international team led by researchers at MPI-CPfS used irradiation with extremely high-energy electrons to controllably introduce atomic defects in superconducting nickelate thin films. Their systematic investigation recently published in Physical Review Letters helps to narrow down the possible answers to fundamental questions of how superconductivity emerges in these materials.
Superconductors are materials that completely expel magnetic fields and perfectly transmit electrical current without any losses, properties which make them both fascinating playgrounds to probe fundamental physical understanding of materials as well as potentially revolutionary technological building blocks.
Some kinds of superconductors are relatively well-understood, explained by theoretical models developed starting in the 1950s. Other classes of superconductors remain more mysterious, but can exhibit superconductivity at higher temperatures, making them more attractive for practical applications.
Scientists have developed a chromium-molybdenum-silicon alloy that withstands extreme heat while remaining ductile and oxidation-resistant. It could replace nickel-based superalloys, which are limited to about 1,100°C. The new material might make turbines and engines significantly more efficient, marking a major step toward cleaner, more powerful energy systems.
Researchers at University of Limerick (UL) have developed a battery that could reshape the future of electric vehicles and portable electronics. Their breakthrough in energy storage technology has seen the development of the world’s first full-cell dual-cation battery.
This innovative system combines lithium and sodium ions to significantly enhance both battery capacity and stability, marking a new frontier in sustainable energy research.
The work, published in Nano Energy, was led by Hugh Geaney, Associate Professor of Chemistry at UL’s Department of Chemical Sciences and Principal Investigator at UL’s Bernal Institute, and Government of Ireland postdoctoral fellow, Dr. Syed Abdul Ahad, his colleague at the Department and the Bernal Institute.