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ScienceDaily: Matter & Energy News |
| Quantum material to boost terahertz frequencies Posted: 20 Oct 2021 10:59 AM PDT They are regarded as one of the most interesting materials for future electronics: Topological insulators conduct electricity in a special way and hold the promise of novel circuits and faster mobile communications. A research team has now unraveled a fundamental property of this new class of materials: How exactly do the electrons in the material respond when they are 'startled' by short pulses of so-called terahertz radiation? The results are not just significant for our basic understanding of this novel quantum material, but could herald faster mobile data communication or high-sensitivity detector systems for exploring distant worlds in years to come, the team reports. |
| Researchers make hardened wooden knives that slice through steak Posted: 20 Oct 2021 10:59 AM PDT The sharpest knives available are made of either steel or ceramic, both of which are human-made materials that must be forged in furnaces under extreme temperatures. Now, researchers have developed a potentially more sustainable way to make sharp knives: using hardened wood. The method makes wood 23 times harder and a knife made from the material is nearly three times sharper than a stainless-steel dinner table knife. |
| Study of DNA repair boosts prospects for gene editing technology Posted: 20 Oct 2021 10:59 AM PDT Researchers have developed a new method to profile the activity of cellular genes involved in correcting DNA damage, and applied this method to pave the way for dramatic improvements to genome editing technologies. |
| Unmasking the magic of superconductivity in twisted graphene Posted: 20 Oct 2021 10:59 AM PDT Researchers report an uncanny resemblance between the superconductivity of magic graphene and that of high temperature superconductors. Magic graphene may hold the key to unlocking new mechanisms of superconductivity, including high temperature superconductivity. |
| Lightweight electric wristband heaters for constant, portable warmth Posted: 20 Oct 2021 10:59 AM PDT As the fall chill settles in across the U.S., people are getting out their cozy sweaters and electric blankets, or stocking up on handheld heat packets for extra warmth. But sweaters and blankets are bulky, and heat packs only work for a little while. Now, researchers demonstrate a conductive, durable yarn for lightweight wearable heaters that are re-usable and provide constant, portable warmth. |
| Plugging into ocean waves with a flexible, seaweed-like generator Posted: 20 Oct 2021 10:58 AM PDT Ocean waves can be powerful, containing enough energy to push around sand, pebbles and even boulders during storms. These waves, as well as smaller, more gentle ones, could be tapped as a source of renewable energy. Now, researchers have developed flexible power generators that mimic the way seaweed sways to efficiently convert surface and underwater waves into electricity to power marine-based devices. |
| 'Ray guns' let scientists use light instead of DNA to tell plant populations apart Posted: 19 Oct 2021 09:35 AM PDT Using a handheld device that looks a little like a ray gun, scientists recorded how plant leaves on different Alaskan mountains reflect light. And, it turns out, different populations of plants of the same species -- for instance, plants living on neighboring mountaintops -- reflect light differently, in ways that echo their genetic variation from each other. |
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