Showing 20 articles starting at article 1
Categories: Chemistry: Thermodynamics, Space: Astronomy
Published NASA's DART impact permanently changed the shape and orbit of asteroid moon
(via sciencedaily.com) Original source A new study provides insights on the geophysics behind asteroid formation and evolution.
Published Scientists propose guidelines for solar geoengineering research
(via sciencedaily.com) Original source To guide future research into solar geoengineering, an international group of scientists is making specific recommendations for evaluating proposals in order to identify the most feasible and legitimate scenarios for stratospheric aerosol intervention.
Published New gels could protect buildings during wildfires
(via sciencedaily.com) Original source Researchers have developed a sprayable gel that creates a shield to protect buildings from wildfire damage. It lasts longer and is more effective than existing commercial options.
Published Meteor showers shed light on where comets formed in the early solar system
(via sciencedaily.com) Original source Researchers studying meteor showers have found that not all comets crumble the same way when they approach the Sun. In a new study, they ascribe the differences to the conditions in the protoplanetary disk where comets formed 4.5 billion years ago.
Published Extraterrestrial chemistry with earthbound possibilities
(via sciencedaily.com) Original source Who are we? Why are we here? We are stardust, the result of chemistry occurring throughout vast clouds of interstellar gas and dust. To better understand how that chemistry could create prebiotic molecules, researchers investigated the role of low-energy electrons created as cosmic radiation traverses through ice particles. Their findings may also inform medical and environmental applications on our home planet.
Published Chalk-based coating creates a cooling fabric
(via sciencedaily.com) Original source In the scorching heat of summer, anyone who spends time outside could benefit from a cooling fabric. While there are some textiles that reflect the sun's rays or wick heat away, current options require boutique fibers or complex manufacturing processes. But now, demonstrations of a durable chalk-based coating show it can cool the air underneath treated fabric by up to 8 degrees Fahrenheit.
Published Eco-friendly cooling device with record-breaking efficiency
(via sciencedaily.com) Original source Researchers have developed an eco-friendly refrigeration device with record-breaking cooling performance in the world, setting to transform industries reliant on cooling and reduce global energy use. With a boost in efficiency of over 48%, the new elastocaloric cooling technology opens a promising avenue for accelerating the commercialization of this disruptive technology and addressing the environmental challenges associated with traditional cooling systems.
Published Quenching the intense heat of a fusion plasma may require a well-placed liquid metal evaporator
(via sciencedaily.com) Original source New fusion simulations of the inside of a tokamak reveal the ideal spot for a 'cave' with flowing liquid lithium is near the bottom by the center stack, as the evaporating metal particles should land in just the right spot to dissipate excess heat from the plasma.
Published Sharing risk to avoid power outages in an era of extreme weather
(via sciencedaily.com) Original source Heat waves, droughts, and fires place growing stress on the West's electric grid. New research suggests that more integrated management of electricity resources across the region could significantly reduce the risk of power outages and accelerate the transition to clean energy.
Published New view of North Star reveals spotted surface
(via sciencedaily.com) Original source High-resolution images show large spots on the surface of Polaris.
Published Explanation found for X-ray radiation from black holes
(via sciencedaily.com) Original source Researchers have succeeded in something that has been pursued since the 1970s: explaining the X-ray radiation from the black hole surroundings. The radiation originates from the combined effect of the chaotic movements of magnetic fields and turbulent plasma gas.
Published New twist on synthesis technique promises sustainable manufacturing
(via sciencedaily.com) Original source Researchers developed a new method known as flash-within-flash Joule heating (FWF) that could transform the synthesis of high-quality solid-state materials, offering a cleaner, faster and more sustainable manufacturing process.
Published Right on schedule: Physicists use modeling to forecast a black hole's feeding patterns with precision
(via sciencedaily.com) Original source The dramatic dimming of a light source ~ 870 million light years away from Earth confirms the accuracy of a detailed model.
Published Revolutionizing thermoelectric technology: Hourglass-shaped materials achieve a 360% efficiency boost
(via sciencedaily.com) Original source A groundbreaking technology has been unveiled that improves the efficiency of thermoelectric materials, which are key in converting waste heat into electricity, by altering their geometry to resemble an hourglass. Unlike previous research that solely depended on the material properties of thermoelectric substances, this new approach is expected to have widespread applications in thermoelectric power generation.
Published Intelligent soft robotic clothing for automatic thermal adaptation in extreme heat
(via sciencedaily.com) Original source As global warming intensifies, people increasingly suffer from extreme heat. For those working in a high-temperature environment indoors or outdoors, keeping thermally comfortable becomes particularly crucial. A team has now developed thermally-insulated and breathable soft robotic clothing that can automatically adapt to changing ambient temperatures, thereby helping to ensure worker safety in hot environments.
Published Engineers conduct first in-orbit test of 'swarm' satellite autonomous navigation
(via sciencedaily.com) Original source With 2D cameras and space robotics algorithms, astronautics engineers have created a navigation system able to manage multiple satellites using visual data only. They just tested it in space for the first time.
Published Galaxies in dense environments tend to be larger, settling one cosmic question and raising others
(via sciencedaily.com) Original source A new study has found galaxies with more neighbors tend to be larger than their counterparts that have a similar shape and mass, but reside in less dense environments. The team, which used a machine-learning algorithm to analyze millions of galaxies, reports that galaxies found in denser regions of the universe are as much as 25% larger than isolated galaxies. The findings resolve a long-standing debate among astrophysicists over the relationship between a galaxy's size and its environment, but also raise new questions about how galaxies form and evolve over billions of years.
Published SwRI-led team finds evidence of hydration on Asteroid Psyche
(via sciencedaily.com) Original source Using data from NASA's James Webb Space Telescope, astronomers have confirmed hydroxyl molecules on the surface of the metallic asteroid Psyche. The presence of hydrated minerals suggests a complex history for Psyche, important context for the NASA spacecraft en route to this interesting asteroid orbiting the Sun between Mars and Jupiter.
Published New mechanism to cool buildings while saving energy
(via sciencedaily.com) Original source The movement of radiant heat -- felt when a hot surface warms our bodies and homes -- between buildings and their surroundings at ground level makes buildings with less skyward-facing surfaces harder to cool. A research team has demonstrated a new passive cooling technology that coats walls and windows with materials that can better manage heat movement between buildings and their surroundings at ground level. Findings could reduce the reliance on air conditioning and provide a more environmentally friendly, low-cost and scalable option for low-income communities with limited or no access to cooling and heating systems.
Published New technology uses light to engrave erasable 3D images
(via sciencedaily.com) Original source Researchers invented a technique that uses a specialized light projector and a photosensitive chemical additive to imprint two- and three-dimensional images inside any polymer. The light-based engraving remains in the polymer until heat or light are applied, which erases the image and makes it ready to use again. The technology is intended for any situation where having detailed, precise visual data in a compact and easily customizable format could be critical, such as planning surgeries and developing architectural designs.