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ScienceDaily: Top Technology News |
Unlocking the biochemical treasure chest within microbes Posted: 14 Oct 2019 09:26 AM PDT An international team of scientists has developed a genetic engineering tool that makes producing and analyzing microbial secondary metabolites -- the basis for many important agricultural, industrial, and medical products -- easier than ever before, and could even lead to breakthroughs in biomanufacturing. |
Women have substantially less influence on Twitter than men in academic medicine Posted: 14 Oct 2019 08:17 AM PDT Women who are health policy or health services researchers face a significant disparity in social media influence compared to their male peers, according to a new study. Although the average number of tweets among all researchers tend to be consistent, women trail behind men in follower counts, regardless of how active they are on Twitter. |
How to control friction in topological insulators Posted: 14 Oct 2019 08:17 AM PDT Topological insulators are innovative materials that conduct electricity on the surface, but act as insulators on the inside. Physicists have begun investigating how they react to friction. Their experiment shows that the heat generated through friction is significantly lower than in conventional materials. This is due to a new quantum mechanism, the researchers report. |
The nano-guitar string that plays itself Posted: 14 Oct 2019 08:17 AM PDT Scientists have created a nano-electronic circuit which vibrates without any external force. Just as a guitar string vibrates when plucked, the wire -- 100,000 times thinner than a guitar string -- vibrates when forced into motion by an oscillating voltage. The surprise came when they repeated the experiment without the forcing voltage. Under the right conditions, the wire oscillated of its own accord. The nano-guitar string was playing itself. |
Unique sticky particles formed by harnessing chaos Posted: 14 Oct 2019 08:17 AM PDT New research shows that unique materials with distinct properties akin to those of gecko feet - the ability to stick to just about any surface -- can be created by harnessing liquid-driven chaos to produce soft polymer microparticles with hierarchical branching on the micro- and nanoscale. |
Scientists pinpoint cause of harmful dendrites and whiskers in lithium batteries Posted: 14 Oct 2019 08:17 AM PDT Scientists have uncovered a root cause of the growth of needle-like structures -- known as dendrites and whiskers -- that plague lithium batteries, sometimes causing a short circuit, failure, or even a fire. Such defects are a major factor holding back the batteries from even more widespread use and further improvement. |
Astronomers use giant galaxy cluster as X-ray magnifying lens Posted: 14 Oct 2019 08:17 AM PDT Astronomers have used a massive cluster of galaxies as an X-ray magnifying glass to peer back in time, to nearly 9.4 billion years ago. In the process, they spotted a tiny dwarf galaxy in its very first, high-energy stages of star formation. |
Cheaper catalyst can generate hydrogen in a commercial device Posted: 14 Oct 2019 08:17 AM PDT Researchers have shown for the first time that a cheap catalyst can split water and generate hydrogen gas for hours on end in the harsh environment of a commercial electrolyzer -- a step toward clean, large-scale hydrogen production for fuel, fertilizer and industry. |
Scientists reveal mechanism of electron charge exchange in molecules Posted: 14 Oct 2019 08:17 AM PDT Through a new scanning transmission electron microscopy method, researchers are able to observe electron distribution between atoms and molecules and uncover clues to the origins of ferroelectricity, the capacity of certain crystals to possess spontaneous electric polarization that can be switched by the application of an electric field. The research also revealed the mechanism of charge transfer between two materials. |
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