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ScienceDaily: Top Technology News |
| Growing 'metallic wood' to new heights Posted: 29 Jun 2021 04:17 PM PDT Penn Engineers' 'metallic wood' gets its useful properties and name from a key structural feature of its natural counterpart: porosity. As a lattice of nanoscale nickel struts, metallic wood is full of cell-sized pores that radically decrease its density without sacrificing strength. They have now solved a major problem preventing metallic wood from being manufactured at meaningful sizes: eliminating 'inverted cracks,' a kind of defect that has plagued similar materials for decades. |
| Bronze Age: how the market began Posted: 29 Jun 2021 04:17 PM PDT Knowing the weight of a commodity provides a way to value goods in the marketplace. But did a self-regulating market even exist in the Bronze Age? And what can weight systems tell us? Researchers investigated the dissemination of weight systems throughout Western Eurasia. Their simulation indicates that the interaction of merchants, even without intervention from institutions, is likely to explain the spread of Bronze Age technology to weigh goods. |
| Fungi embrace fundamental economic theory as they engage in trading Posted: 29 Jun 2021 01:13 PM PDT When you think about trade and market relationships, you might think about brokers yelling at each other on the floor of a stock exchange on Wall Street. But it seems one of the basic functions of a free market is quietly practiced by fungi. |
| Longer-lived lithium-metal battery marks step forward for electric vehicles Posted: 29 Jun 2021 12:13 PM PDT Researchers have increased the lifetime of a promising electric vehicle battery to a record level. |
| Increased use of household fireworks creates a public health hazard Posted: 29 Jun 2021 11:43 AM PDT Fireworks are synonymous in the United States with the celebration of Independence Day and other special events, but the colorful displays have caused a growing risk to public safety in recent years, according to a new study. |
| Paving the way to artificial photosynthesis -- effect of doping on the photocatalyst SrTiO3 Posted: 29 Jun 2021 11:43 AM PDT While the material strontium titanate (SrTiO3) has shown immense potential as a photocatalyst in solar energy conversion, it is unclear whether chemical defects can influence its properties. Now, researchers looked into how doping with niobium affects the charge properties of SrTiO3 crystals. Their findings can help us to increase the efficiency of SrTiO3 photocatalysts, opening doors to a sustainable energy source. |
| A new piece of the quantum computing puzzle Posted: 29 Jun 2021 11:43 AM PDT Scientists have developed a groundbreaking quantum logic gate that brings quantum computing closer to reality. |
| Speedy nanorobots could someday clean up soil and water, deliver drugs Posted: 29 Jun 2021 11:43 AM PDT Researchers have discovered that minuscule, self-propelled particles called 'nanoswimmers' can escape from mazes as much as 20 times faster than other, passive particles, paving the way for their use in everything from industrial clean-ups to medication delivery. |
| Hunting dark energy with gravity resonance spectroscopy Posted: 29 Jun 2021 10:43 AM PDT Researchers demonstrate a robust experimental technique for studying one particular theory for dark energy. Named 'Gravity Resonance Spectroscopy,' their approach could bring researchers a step closer to understanding one of the greatest mysteries in cosmology. |
| Computer training program for seniors can reduce hazardous driving Posted: 29 Jun 2021 10:43 AM PDT A recent proof-of-concept study finds that a low-cost training program can reduce hazardous driving in older adults. Researchers hope the finding will lead to the training becoming more widely available. |
| Microstructure found in beetle's exoskeleton contributes to color and damage resistance Posted: 29 Jun 2021 10:43 AM PDT In addition to providing coloration, the exoskeletal shell of beetles needs to be strong and damage tolerant, researchers explain. |
| New 2D alloy combines five metals, breaks down CO2 Posted: 29 Jun 2021 10:43 AM PDT A new, two-dimensional material has been synthesized to act as a catalyst for reducing CO2, into CO, with potential applications in environmental remediation. |
| Data-driven approach for a more sustainable utility rate structure Posted: 29 Jun 2021 10:42 AM PDT Many drivers use tollways to get from point A to point B because they are a faster and more convenient option. The fees associated with these roadways are higher during peak traffic hours of the day, such as during the commute to and from work. |
| Reversal speeds creation of important molecule Posted: 29 Jun 2021 10:39 AM PDT A reverse approach to making halichondrin B is the shortest route to what it referred to as a rather complex and important molecule and the parent compound of eribulin, the latter being used to treat breast cancer and liposarcoma. |
| Playing wind instruments generates less aerosol than vocalization, COVID-19 study finds Posted: 29 Jun 2021 09:08 AM PDT Aerosol generated by playing woodwind and brass instruments is less than that produced when vocalising (speaking and singing) and is no different than a person breathing, new research has found. The findings could be crucial to developing a roadmap for lifting COVID-19 restrictions in the performing arts, which have been significantly restricted since the start of the pandemic. |
| Scientists mine the rich seam of body wearable motion sensors Posted: 29 Jun 2021 09:08 AM PDT Body movement can be identified through clothing by passing a low voltage through a seam sewn from conductive yarn. Seam-based fitness trackers hold promise for tracking subtle movements (yoga, Pilates, rehabilitation, etc) -- something today's fitness watches struggle with. Stretching conductive seams reduces voltage, and the increase in resistance broadly indicates the level of stretch. Changes in voltage are recorded using a microcontroller. |
| Identifying a topological fingerprint Posted: 29 Jun 2021 09:08 AM PDT Australian theoretical physics study just out has identified a 'smoking gun' in long search for the topological magnetic monopole referred to as the Berry curvature. This breakthrough in search for topological effects in non-equilibrium systems opens paths towards low-energy topological electronics viable for large-scale, room-temperature operation. |
| Microbes feast on crushed rock in subglacial lakes beneath Antarctica Posted: 29 Jun 2021 09:07 AM PDT Pioneering research has revealed the erosion of ancient sediments found deep beneath Antarctic ice could be a vital and previously unknown source of nutrients and energy for abundant microbial life. |
| Ground breaking invention on battery recycling Posted: 29 Jun 2021 09:07 AM PDT Researchers have developed a new method to recycle electric vehicle batteries using a ground-breaking new approach that many will have experienced in the dentist's chair. |
| Sustainable mining of raw materials from thermal springs in Chile Posted: 29 Jun 2021 09:07 AM PDT Lithium, cesium, or even gold -- in addition to energy geothermal waters can contain mineral treasures. Researchers want to leverage this potential and support sustainable mining in Chile. Together with their partners, they are developing strategies and methods for extracting mineral resources and even drinking water directly in geothermal power plants. |
| This crystal impurity is sheer perfection Posted: 29 Jun 2021 09:07 AM PDT Scientists have developed a nanoparticle composite that grows into 3D crystals. The new 3D-grown material could speed up production and eliminate errors in the mass manufacturing of nanoscale photonics for smart buildings or actuators for robotics. |
| Stretching changes the electronic properties of graphene Posted: 29 Jun 2021 09:07 AM PDT The electronic properties of graphene can be specifically modified by stretching the material evenly, say researchers. These results open the door to the development of new types of electronic components. |
| Targeted delivery of therapeutic RNAs only to cancer, no harm caused to healthy cells Posted: 29 Jun 2021 09:04 AM PDT The groundbreaking technology may revolutionize the treatment of cancer and a wide range of diseases and medical conditions. |
| Visualizing atomic-scale structures with optical force Posted: 29 Jun 2021 07:12 AM PDT Scientists succeeded in imaging the photocatalytic function of nanoparticles with unprecedently high resolution, which may provide a new tool for nanotechnology and optical manipulation of tiny devices. |
| Microfilter device capable of detecting trace amounts of cancer cells in one mL of blood Posted: 29 Jun 2021 07:12 AM PDT Researchers have developed a microfilter device that can easily separate and capture trace amounts of cancer cells in blood. The palm-sized device is expected to contribute to the development of new cancer diagnostic technologies based on cancer cells in the blood, such as early detection by blood test, postoperative management, and recurrence monitoring. |
| 'Edge of chaos' opens pathway to artificial intelligence discoveries Posted: 29 Jun 2021 07:11 AM PDT Some neuroscience theories suggest the human brain operates best 'at the edge of chaos'. Now scientists have found that keeping a nanowire network at the edge of becoming chaotic is the best state for it to produce useful signals to solve problems. |
| Astrophysicists detect first black hole-neutron star mergers Posted: 29 Jun 2021 07:11 AM PDT A long time ago, in two galaxies about 900 million light-years away, two black holes each gobbled up their neutron star companions, triggering gravitational waves that finally hit Earth in January 2020. Astrophysicists' observation of the two events -- detected just 10 days apart -- mark the first-ever detection of a black hole merging with a neutron star. |
| RAMBO speeds searches on huge DNA databases Posted: 28 Jun 2021 12:29 PM PDT Computer scientists are sending RAMBO to rescue genomic researchers who sometimes wait days or weeks for search results from enormous DNA databases. |
| A template for fast synthesis of nanographenes Posted: 28 Jun 2021 09:30 AM PDT Development of a new APEX reaction means that large numbers of nanographenes can be easily synthesized using a commercially available hydrocarbon as a template. |
| AI learns to predict human behavior from videos Posted: 28 Jun 2021 08:37 AM PDT A new study unveils a computer vision technique for giving machines a more intuitive sense for what will happen next by leveraging higher-level associations between people, animals, and objects. |
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