科學 訊息

Rescuers successfully evacuated a researcher who fell seriously ill at a remote outpost in the Antarctic, but it wasn't easy.

Rain-swelled reservoirs in hydro-powered Norway mean residents in its two largest cities have enjoyed 2 days with free electricity.

In a development toward practical photoelectrochemical water splitting, a research team has achieved a technological breakthrough in the production of green hydrogen. Through their innovative approach, the team has overcome the challenges of efficiency, stability, and scalability in photoelectrodes, paving the way for practical implementation. The study is published in the journal Nature Energy.

While wind farms have become a widely popular method of generating energy, researchers are now looking at the impact of these large farms on wind patterns and the surrounding environment.

The smallest rings in the solar system, belonging to the centaur Chariklo, may be perturbed by a moon that's yet to be discovered.

Ingenuity will never fly again, forever grounded on the Martian dunes, where it looks incredibly lonely.

A novel approach to address environmental challenges is developing and commercializing robust hydrogen fuel cells. These cells contain a polymer electrolyte membrane that serves as a barrier between the electrodes (the conductors that enable the flow of electricity through a substance). This membrane conducts protons but inhibits the movement of electrons, hydrogen molecules, and oxygen molecules.

A new system to heat Quebec schools during cold winter months could help keep students more comfortable, improve the amount of solar-heated clean ventilation, and save school boards a bundle.

Life cycle assessments are often used as a basis for decision-making when selecting environmentally friendly processes, input materials or services for plastics recycling. But what does a comparable and transparent ecological assessment that meets different requirements look like?

Transit-oriented development (TOD) is a widely endorsed strategy for sustainable urban planning that encourages walking and transit ridership. In the context of TOD, assessing pedestrian behavior is crucial; for instance, walking behavior around railway stations is commonly quantified using pedestrian volumes. However, areas with similar pedestrian volumes may exhibit variations in walking distances and time spent around stations, necessitating a more comprehensive assessment approach.

In a landmark study, Associate Professor Yoshihiro Nakata of the University of Electro-Communications, Japan, in collaboration with researchers from Osaka University, conducted research on edible robotics. Published in PLOS ONE, this study is the first to explore the experience of consuming a moving edible robot.

In a study published in the journal Carbon Resources Conversion, a team of researchers from Kazakhstan and South Korea reported the successful synthesis of P-doped hard carbon using coffee grounds as a precursor and H3PO4 as the doping agent.

Lithium-sulfur batteries can potentially store five to 10 times more energy than current state-of-the-art lithium-ion batteries at much lower cost. Current lithium-ion batteries use cobalt oxide as the cathode, an expensive mineral mined in ways that harm people and the environment. Lithium-sulfur batteries replace cobalt oxide with sulfur, which is abundant and cheap, costing less than one-hundredth the price of cobalt.

As interest in wearable technology has surged, research into creating energy-storage devices that can be woven into textiles has also increased. Researchers at North Carolina State University have now identified a "sweet spot" at which the length of a threadlike energy storage technology called a "yarn-shaped supercapacitor" (YSC) yields the highest and most efficient flow of energy per unit length.

I first rode an e-bike after a day out exploring the fells on foot a few years ago. Instead of driving back to my accommodation, I traveled 40km through the Lake District on an e-bike and I was surprised by how easy it was, even after a physically demanding day. Since then, I've been researching the potential for people to shift from cars to e-bikes and recently found that rural areas have the greatest capability to replace car travel and cut carbon emissions.

Using 3D printing, researchers at the U of A and Massachusetts Institute of Technology have developed a novel approach for achieving an optimal combination of stiffness and toughness in microstructured composites.

Inspired by the remarkable adaptability observed in biological organisms like the octopus, a breakthrough has been achieved in the field of soft robotics. A research team, led by Professor Jiyun Kim in the Department of Materials Science and Engineering at UNIST has successfully developed an encodable multifunctional material that can dynamically tune its shape and mechanical properties in real time.

On the Vergecast: Arc Search, Galaxy S24s, and spatial video

Scientists at Oak Ridge National Laboratory and the University of Tennessee, Knoxville, have developed an algorithm to predict electric grid stability using signals from pumped storage hydropower projects. The method provides critical situational awareness as the grid increasingly shifts to intermittent renewable power.

Research involving Oregon State University has shown that a "swarm" of more than 100 autonomous ground and aerial robots can be supervised by one person without subjecting the individual to an undue workload.