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ScienceDaily: Top Technology News |
| Alien radioactive element prompts creation rethink Posted: 18 May 2021 08:42 AM PDT The first-ever discovery of an extraterrestrial radioactive isotope on Earth has scientists rethinking the origins of the elements on our planet. |
| Spintronics: Improving electronics with finer spin control Posted: 18 May 2021 08:42 AM PDT Scientists have found a new way to control the alignment state of magnetic atoms in an antiferromagnetic material, showing promise for the development of tiny sensors and memory devices. Researchers now describe their new approach featuring a controllable exchange bias effect, which enables the asymmetric magnetic actions of devices comprised of complex combination structure of different types of magnetic materials. |
| Novel methods to improve the range and safety of e-vehicles Posted: 18 May 2021 08:41 AM PDT A recent project has revealed innovative methods that could dramatically improve the performance of future electrical vehicles (e-vehicles). |
| Engineers harvest WiFi signals to power small electronics Posted: 18 May 2021 08:41 AM PDT A research team has developed new technology that uses tiny smart devices known as spin-torque oscillators to harvest and convert wireless radio frequencies into energy to power small electronics. |
| New material could create 'neurons' and 'synapses' for new computers Posted: 18 May 2021 08:41 AM PDT Classic computers use binary values (0/1) to perform. By contrast, our brain cells can use more values to operate, making them more energy-efficient than computers. This is why scientists are interested in neuromorphic (brain-like) computing. Physicists have used a complex oxide to create elements comparable to the neurons and synapses in the brain using spins, a magnetic property of electrons. |
| Stunning simulation of stars being born is most realistic ever Posted: 18 May 2021 08:38 AM PDT Astrophysicists has developed the most realistic, highest-resolution 3D simulation of star formation to date. Called STARFORGE (Star Formation in Gaseous Environments), the computational framework is the first to simulate an entire gas cloud -- 100 times more massive than previously possible and full of vibrant colors -- where stars are born. |
| Machine learning (AI) accurately predicts cardiac arrest risk Posted: 17 May 2021 04:46 PM PDT A branch of artificial intelligence (AI), called machine learning, can accurately predict the risk of an out of hospital cardiac arrest -- when the heart suddenly stops beating -- using a combination of timing and weather data. |
| Diamonds engage both optical microscopy and MRI for better imaging Posted: 17 May 2021 04:46 PM PDT Microdiamonds with nitrogen vacancy centers are increasingly used as biological tracers thanks to the optical fluorescence of NV centers. But the NV centers also can be spin-polarized by low-power lasers, and the polarized centers then polarize nearby carbon-13 atoms occurring naturally in the diamonds. These hyperpolarized C-13 atoms can be detected by NMR imaging. Chemists now demonstrate dual-mode imaging with NV-center diamonds, potentially allowing high-quality imaging 10 times deeper than with optics alone. |
| Algorithm to see inside materials with subatomic particles Posted: 17 May 2021 09:49 AM PDT Scientists have developed an algorithm to train computers to analyze signals from subatomic particles embedded in advanced electronic materials. |
| Scientists explore Tesla roads not taken -- and find new potential present-day utility Posted: 17 May 2021 05:36 AM PDT A valve invented by engineer Nikola Tesla a century ago is not only more functional than previously realized, but also has other potential applications today, a team of researchers has found after conducting a series of experiments on replications of the early 20th-century design. |
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