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ScienceDaily: Top Technology News |
| Hidden distortions trigger promising thermoelectric property Posted: 09 May 2022 04:15 PM PDT A study describes a new mechanism for lowering thermal conductivity to aid the search for materials that convert heat to electricity or electricity to heat. Scientists describe the previously hidden sub-nanoscale origins of exceptional thermoelectric properties in silver gallium telluride. The discovery reveals a quantum mechanical twist on what drives the emergence of these properties -- and opens up a completely new direction for searching for new high-performance thermoelectrics. |
| Ultrafast 'camera' captures hidden behavior of potential 'neuromorphic' material Posted: 09 May 2022 12:07 PM PDT Imagine a computer that can think as fast as the human brain while using very little energy. That's the goal of scientists seeking to discover or develop 'neuromorphic' materials that can send and process signals as easily as the brain's neurons and synapses. In a paper just published scientists describe surprising new details about vanadium dioxide, one of the most promising neuromorphic materials. |
| 'Self-driving' microscopes discover shortcuts to new materials Posted: 09 May 2022 12:07 PM PDT Researchers are teaching microscopes to drive discoveries with an intuitive algorithm that could guide breakthroughs in new materials for energy technologies, sensing and computing. |
| In a pair of merging supermassive black holes, a new method for measuring the void Posted: 09 May 2022 10:26 AM PDT Researchers have devised a potentially easier way of gazing into the abyss. Their imaging technique could allow astronomers to study black holes smaller than M87's, a monster with a mass of 6.5 billion suns, harbored in galaxies more distant than M87, which at 55 million light-years away, is still relatively close to our own Milky Way. |
| Confirmed: Atmospheric helium levels are rising Posted: 09 May 2022 08:21 AM PDT Scientists used an unprecedented technique to detect that levels of helium are rising in the atmosphere, resolving an issue that has lingered among atmospheric chemists for decades. |
| Multi-tasking wearable continuously monitors glucose, alcohol, and lactate Posted: 09 May 2022 08:20 AM PDT Imagine being able to measure your blood sugar levels, know if you've had too much to drink, and track your fatigue during a workout, all in one small device worn on your skin. Engineers developed a prototype of such a wearable that continuously monitors several health stats at once. |
| New method to synchronize devices on Earth makes use of cosmic rays Posted: 09 May 2022 08:20 AM PDT Various technologies, networks and institutions benefit from or require accurate time keeping to synchronize their activities. Current ways of synchronizing time have some drawbacks that a new proposed method seeks to address. The cosmic time synchronizer works by synchronizing devices around cosmic ray events detected by those devices. This could bring accurate timing abilities to remote sensing stations, or even underwater, places that other methods cannot serve. Early tests show promise, but the real challenge may lie in the adoption of this new technique. |
| Failed eruptions are at the origin of copper deposits Posted: 09 May 2022 08:20 AM PDT Copper is one of the most widely used metals on the planet today due to its electrical and thermal conduction properties. The greatest natural resources of this metal are the so-called 'porphyry' deposits that come from magmas deep in the Earth. In recent research, scientists demonstrate that these deposits are largely produced by mechanisms similar to those causing large volcanic eruptions. At a time when current copper resources are dwindling and this metal plays a key role in the energy transition, this discovery opens up new avenues for the development of tools to find new deposits. |
| Research breakthrough means warp speed 'Unruh effect' can finally be tested in lab settings Posted: 09 May 2022 07:09 AM PDT A major hurdle for work at the forefront of fundamental physics is the inability to test cutting-edge theories in a laboratory setting. But a recent discovery opens the door for scientists to see ideas in action that were previously only understood in theory or represented in science fiction. |
| Energy researchers invent chameleon metal that acts like many others Posted: 09 May 2022 07:09 AM PDT Researchers have invented a groundbreaking device that electronically converts one metal into behaving like another to use as a catalyst for speeding chemical reactions. |
| Why science doesn't help sell chocolate chip cookies Posted: 09 May 2022 07:09 AM PDT People don't want science anywhere near their delicious chocolate chip cookies. But they're happy to have science create body wash that fights odor-causing bacteria. |
| It's all in the wrist: A portable MRI system for early detection of sports injuries Posted: 06 May 2022 08:33 AM PDT To provide a convenient tool for the early detection of injuries, researchers have developed a portable MRI device for diagnosing cartilage damage in the wrist. Using this device, the researchers imaged the wrists of tennis players at a tennis school. Several athletes were found to have cartilage damage without any other symptoms of an injury. Thus, this device provides a convenient early screening tool to help prevent further injury or damage. |
| Silicon nanoparticles are attracted to vortices in superfluid helium Posted: 04 May 2022 11:45 AM PDT Researchers use silicon nanoparticles to help visualize the coalescence of quantized vortices that occur in superfluid helium, which can help improve our understanding of quantum fluids and materials, including superconductors. |
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