Which of these materials is the best conductor of heat?
Most frequently used materials in the making of computer heatsinks... or not?.....»»
Enhancing memory technology: Multiferroic nanodots for low-power magnetic storage
Traditional memory devices are volatile and the current non-volatile ones rely on either ferromagnetic or ferroelectric materials for data storage. In ferromagnetic devices, data is written or stored by aligning magnetic moments, while in ferroelectr.....»»
Thiol-ene click reaction offers a novel approach to fabricate elastic ferroelectrics
A research group led by Prof. Li Runwei and Hu Benlin at the Ningbo Institute of Materials Technology and Engineering (NIMTE) of the Chinese Academy of Sciences has developed a facile and efficient approach to fabricate elastic relaxor ferroelectrics.....»»
Towards novel promising perovskite-type ferroelectric materials: High-pressure synthesis of rubidium niobate
Capacitors are crucial components in electronic devices such as smartphones and computers. They are made of dielectric materials that polarize on the application of the voltage. Currently, barium titanate (BaTiO3) is the most widely used material for.....»»
IRIS beamline at BESSY II gets a new nanospectroscopy end station
The IRIS infrared beamline at the BESSY II storage ring now offers a fourth option for characterizing materials, cells and even molecules on different length scales. The team has extended the IRIS beamline with an end station for nanospectroscopy and.....»»
Freeze casting—a guide to creating hierarchically structured materials
Freeze casting is an elegant, cost-effective manufacturing technique to produce highly porous materials with custom-designed hierarchical architectures, well-defined pore orientation, and multifunctional surface structures. Freeze-cast materials are.....»»
Congo demands that Apple prove iPhone doesn"t use conflict materials
The Democratic Republic of Congo has told Apple it believes the iPhone maker's supply chain is using materials linked to militia groups.Apple has been asked to verify that it doesn't use "conflict minerals" in the iPhoneApple and at least most Big Te.....»»
Africa"s megacities threatened by heat, floods, disease—action needed to start greening, adapt to climate change
Cities cover just 3% of the planet. But they emit 78% of all global greenhouse gas emissions, absorb 80% of final global energy (what consumers use) and consume 60% of clean drinking water......»»
Mantle heat may have boosted Earth"s crust 3 billion years ago
Little is known about the nature and evolution of Earth's continental crust before a few billion years ago because cratons, or stable swaths of the lithosphere more than 2–3 billion years old, are relatively rare......»»
A shade closer to more efficient organic photovoltaics
Transparent solar cells will transform the look of infrastructure by enabling many more surfaces to become solar panels. Now, materials called non-fullerene acceptors that can intrinsically generate charges when exposed to sunlight could make semitra.....»»
Crinkled coatings could prevent medical implants from failing
Medical implants could fail less often when coated with a microscopically crinkled, ceramic material designed by researchers at the University of Michigan. The coating is described in a paper published in ACS Applied Materials and Interfaces......»»
Climate change supercharged a heat dome, intensifying 2021 fire season, study finds
As a massive heat dome lingered over the Pacific Northwest three years ago, swaths of North America simmered—and then burned. Wildfires charred more than 18.5 million acres across the continent, with the most land burned in Canada and California......»»
"So hot you can"t breathe": Extreme heat hits the Philippines
Extreme heat scorched the Philippines on Wednesday, forcing schools in some areas to suspend in-person classes and prompting warnings for people to limit the amount of time spent outdoors......»»
Transporting hazardous materials across the country isn"t easy—that"s why there"s a host of regulations in place
Ever wonder what those colorful signs with symbols and numbers on the backs of trucks mean? They're just one visible part of a web of regulations that aim to keep workers and the environment safe while shipping hazardous waste......»»
Lakes worldwide are facing a slew of health issues that may become chronic
Like humans, lakes are living systems that can suffer from a number of health issues, including circulatory and respiratory problems, infections, nutritional imbalances, and heat-related illnesses. Without treatment, these conditions can become chron.....»»
Light-activated materials perform well in treatment of textile effluent
Photoelectrochemical processes have been considered sustainable alternatives for the remediation of water contaminated by domestic or industrial effluents. Simply put, the strategy consists of using solar energy to degrade organic pollutants......»»
The big quantum chill: Scientists modify common lab refrigerator to cool faster with less energy
By modifying a refrigerator commonly used in both research and industry, researchers at the National Institute of Standards and Technology (NIST) have drastically reduced the time and energy required to cool materials to within a few degrees above ab.....»»
Radiating exoplanet discovered in "perfect tidal storm"
Can tidal forces cause an exoplanet's surface to radiate heat? This is what a study accepted to the Astronomical Journal hopes to address as a team of international researchers used data collected from ground-based instruments to confirm the existenc.....»»
Magnetic with a pinch of hydrogen: Research team develops new idea to improve the properties of ultra-thin materials
Magnetic two-dimensional materials consisting of one or a few atomic layers have only recently become known and promise interesting applications, for example for the electronics of the future. So far, however, it has not been possible to control the.....»»
Europe suffered record number of "extreme heat stress" days in 2023: Monitors
Europe endured a record number of "extreme heat stress" days in 2023, two leading climate monitors said Monday, underscoring the threat of increasingly deadly summers across the continent......»»
Planet sees 10 straight months of record-breaking heat
Californians have had weekend after weekend of cool, stormy weather and the Sierra Nevada has been blessed with a healthy snowpack. But the reality is that even the last few months have been more than 2 degrees hotter than average......»»