Showing 20 articles starting at article 661

< Previous 20 articles        Next 20 articles >

Categories: Chemistry: Thermodynamics, Offbeat: Space

Return to the site home page

Chemistry: Thermodynamics
Published

Neutrons reveal key to extraordinary heat transport      (via sciencedaily.com) 

Warming a crystal of the mineral fresnoite, scientists discovered that excitations called phasons carried heat three times farther and faster than phonons, the excitations that usually carry heat through a material.

Chemistry: Thermodynamics Physics: General Physics: Quantum Physics
Published

Physicists give the first law of thermodynamics a makeover      (via sciencedaily.com) 

Physicists at West Virginia University have made a breakthrough on an age-old limitation of the first law of thermodynamics.

Offbeat: Space Space: Astronomy Space: Exploration Space: General Space: Structures and Features Space: The Solar System
Published

'Forbidden' planet orbiting small star challenges gas giant formation theories      (via sciencedaily.com) 

Astronomers have discovered an unusual planetary system in which a large gas giant planet orbits a small red dwarf star called TOI-5205. Their findings challenge long-held ideas about planet formation.

Geoscience: Geology Offbeat: Earth and Climate Offbeat: Plants and Animals Offbeat: Space Space: General Space: The Solar System
Published

Meteorite crater discovered in French winery      (via sciencedaily.com) 

Countless meteorites have struck Earth in the past and shaped the history of our planet. It is assumed, for example, that meteorites brought with them a large part of its water. The extinction of the dinosaurs might also have been triggered by the impact of a very large meteorite. It turns out that the marketing 'gag' of the 'Domaine du Météore' winery is acutally a real impact crater. Meteorite craters which are still visible today are rare because most traces of the celestial bodies have long since disappeared again.

Chemistry: Thermodynamics Energy: Technology Physics: Acoustics and Ultrasound
Published

Study offers details on using electric fields to tune thermal properties of ferroelectric materials      (via sciencedaily.com) 

New research sheds light on how electric fields can be used to alter the thermal properties of ferroelectric materials, allowing engineers to manipulate the flow of heat through the materials. Ferroelectric materials are used in a wide variety of applications, from ultrasound devices to memory storage technologies.

Offbeat: Space Space: Astronomy Space: Astrophysics Space: Cosmology Space: Exploration Space: General Space: The Solar System
Published

James Webb spots super old, massive galaxies that shouldn't exist      (via sciencedaily.com) 

A team of international researchers have identified six candidate galaxies that existed roughly 500 to 700 million years after the Big Bang and are about as big as the modern Milky Way Galaxy -- a feat that scientists didn't think was possible.

Offbeat: Space Space: Exploration Space: General Space: The Solar System
Published

Better tools needed to determine ancient life on Mars      (via sciencedaily.com) 

Current state-of-the-art instrumentation being sent to Mars to collect and analyze evidence of life might not be sensitive enough to make accurate assessments, according to new research.

Offbeat: Space Space: Exploration Space: General Space: Structures and Features Space: The Solar System
Published

Researchers discover mysterious source of 'heartbeat-like' radio bursts in a solar fare      (via sciencedaily.com) 

A solar radio burst with a signal pattern, akin to that of a heartbeat, has been pinpointed in the Sun's atmosphere, according to a new study. An international team of researchers has reported uncovering the source location of a radio signal coming from within a C-class solar flare more than 5,000 kilometers above the Sun's surface.

Offbeat: Space Space: Astrophysics Space: General Space: Structures and Features
Published

Physicists create new model of ringing black holes      (via sciencedaily.com)     Original source 

A new analysis has modeled black hole collisions in more detail and revealed so-called nonlinear effects within gravitational waves. Nonlinear effects happen 'when waves on the beach crest and crash.'

Chemistry: Thermodynamics
Published

Reactive fabrics respond to changes in temperature      (via sciencedaily.com) 

New textiles change shape when they heat up, giving designers a wide range of new options. In addition to offering adjustable aesthetics, responsive smart fabrics could also help monitor people’s health, improve thermal insulation, and provide new tools for managing room acoustics and interior design. 

Chemistry: Thermodynamics
Published

Solid-state thermal transistor demonstrated      (via sciencedaily.com) 

An effective, stable solid-state electrochemical transistor has been developed, heralding a new era in thermal management technology.

Offbeat: Space Space: Astronomy Space: Exploration Space: General Space: The Solar System
Published

Newly discovered form of salty ice could exist on surface of extraterrestrial moons      (via sciencedaily.com)     Original source 

An international team has found two new crystal structures for salty ice, or solid hydrate made from water and sodium chloride. The newly discovered material's properties match those of the substance seen on the surface of icy moons, like Europa and Ganymede, and may offer clues to their icy oceans.

Offbeat: Space Space: Astronomy Space: Astrophysics Space: Exploration Space: General Space: Structures and Features Space: The Solar System
Published

Tadpole playing around black hole      (via sciencedaily.com)     Original source 

A peculiar cloud of gas, nicknamed the Tadpole due to its shape, appears to be revolving around a space devoid of any bright objects. This suggests that the Tadpole is orbiting a dark object, most likely a black hole 100,000 times more massive than the Sun. Future observations will help determine what is responsible for the shape and motion of the Tadpole.

Offbeat: Space Space: Astrophysics Space: Exploration Space: General Space: Structures and Features
Published

Does ice in the Universe contain the molecules making up the building blocks of life in planetary systems?      (via sciencedaily.com)     Original source 

If you want to build a habitable planet, ice is a key ingredient. The ice can be found in enormous clouds in the Universe and it is the main carrier of the necessary elements such as carbon, hydrogen, oxygen, nitrogen and sulphur. These elements are part of the atmosphere around planets and part of molecules like sugar, alcohols and simple amino acids as well. The new James Webb Space Telescope (JWST) has contributed to the discovery of different ices in a molecular cloud, 'Chameleon 1' -- one of the coldest and darkest regions to have ever been explored. Astronomers assume that these types of molecules were also present in the cold cloud of gas and dust forming our own solar system.

Offbeat: Space Space: Exploration Space: The Solar System
Published

Study quantifies global impact of electricity in dust storms on Mars      (via sciencedaily.com) 

Mars is infamous for its intense dust storms, some of which kick up enough dust to be seen by telescopes on Earth. When dust particles rub against each other, as they do in Martian dust storms, they can become electrified. New research shows that one particularly efficient way to move chlorine from the ground to the air on Mars is by way of reactions set off by electrical discharge generated in dust activities.

Chemistry: Thermodynamics Geoscience: Environmental Issues
Published

Add-on device makes home furnaces cleaner, safer and longer-lasting      (via sciencedaily.com) 

Natural gas furnaces not only heat your home, they also produce a lot of pollution. Even modern high-efficiency condensing furnaces produce significant amounts of corrosive acidic condensation and unhealthy levels of nitrogen oxides, carbon monoxide, hydrocarbons and methane. These emissions are typically vented into the atmosphere and end up polluting our soil, water and air. Scientists have developed an affordable add-on technology that removes more than 99.9% of acidic gases and other emissions to produce an ultraclean natural gas furnace. This acidic gas reduction, or AGR, technology can also be added to other natural gas-driven equipment such as water heaters, commercial boilers and industrial furnaces.

Chemistry: Thermodynamics Energy: Technology
Published

Chiral phonons create spin current without needing magnetic materials      (via sciencedaily.com) 

Researchers chiral phonons to convert wasted heat into spin information -- without needing magnetic materials. The finding could lead to new classes of less expensive, energy-efficient spintronic devices for use in applications ranging from computational memory to power grids.

Offbeat: Space Space: Astronomy Space: Astrophysics Space: Exploration Space: Structures and Features Space: The Solar System
Published

Hubble captures the start of a new spoke season at Saturn      (via sciencedaily.com) 

Since their discovery by NASA's Voyager mission in the 1980s, temporary 'spoke' features across Saturn's rings have fascinated scientists, yet eluded explanation. They have been observed in the years preceding and following the planet's equinox, becoming more prominent as the date approaches. Saturn's upcoming autumnal equinox of the northern hemisphere on May 6, 2025, means that spoke season has come again. NASA's Hubble Space Telescope will be on the job studying the spokes, thanks to time dedicated to Saturn in the mission's ongoing Outer Planet Atmospheres Legacy (OPAL) program. Are the smudgy features related to Saturn's magnetic field and its interaction with the solar wind, as prevailing theory suggests? Confirmation could come in this spoke season, as scientists combine archival data from NASA's Cassini mission with new Hubble observations.

Chemistry: Organic Chemistry Chemistry: Thermodynamics Energy: Alternative Fuels Energy: Fossil Fuels Engineering: Nanotechnology Geoscience: Environmental Issues
Published

'Game-changing' findings for sustainable hydrogen production      (via sciencedaily.com) 

Hydrogen fuel could be a more viable alternative to traditional fossil fuels, according to University of Surrey researchers who have found that a type of metal-free catalysts could contribute to the development of cost-effective and sustainable hydrogen production technologies.