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ScienceDaily: Top Science News |
| Hydrofoils: Major climate benefits when ships 'fly' over the surface Posted: 02 Jun 2022 06:51 AM PDT Soon, electric passenger ferries skimming above the surface across the seas may become a reality. A research team has created a unique method for further developing hydrofoils that can significantly increase the range of electric vessels and reduce the fuel consumption of fossil-powered ships by 80 per cent. |
| Time crystals 'impossible' but obey quantum physics Posted: 02 Jun 2022 06:51 AM PDT Scientists have created a 'time-crystal' a two-body system in an experiment that seems to bend the laws of physics. A 'two-level system' is a basic building block of a quantum computer. Time crystals could perhaps be used to build quantum devices that work at room temperature. Time crystals were long believed to be impossible because they are made from atoms in never-ending motion. The discovery shows that not only can time crystals be created, but they have potential to be turned into useful devices. |
| A 50% reduction in emissions by 2030 can be achieved. Here's how Posted: 02 Jun 2022 06:51 AM PDT To prevent the worst outcomes from climate change, the U.S. will need to reduce greenhouse gas emissions by 50% in the next eight years. Scientists from around the nation have developed a blueprint for success. |
| A 3400-year-old city emerges from the Tigris River Posted: 01 Jun 2022 05:00 PM PDT Archaeologists have uncovered a 3400-year-old Mittani Empire-era city once located on the Tigris River. The settlement emerged from the waters of the Mosul reservoir early this year as water levels fell rapidly due to extreme drought in Iraq. The extensive city with a palace and several large buildings could be ancient Zakhiku -- believed to have been an important center in the Mittani Empire (ca. 1550-1350 BC). |
| When AI is the inventor who gets the patent? Posted: 01 Jun 2022 05:00 PM PDT The day is coming -- some say has already arrived -- when new inventions that benefit society are dreamt up by artificial intelligence all on its own. |
| Physicists announce first results from The Daya Bay Neutrino Experiment's final dataset Posted: 01 Jun 2022 05:00 PM PDT Over nearly nine years, the Daya Bay Reactor Neutrino Experiment captured an unprecedented five and a half million interactions from subatomic particles called neutrinos. Now, the international team of physicists has reported the first result from the experiment's full dataset -- the most precise measurement yet of theta13, a key parameter for understanding how neutrinos change their 'flavor.' The result will help physicists explore some of the biggest mysteries surrounding the nature of matter and the universe. |
| Researchers show dynamic soaring isn't just for albatrosses Posted: 01 Jun 2022 02:02 PM PDT A new study shows how small seabirds have mastered the art of working smarter not harder when soaring at sea. |
| Narcissistic bosses stymie knowledge flow, cooperation inside organizations Posted: 01 Jun 2022 12:55 PM PDT New research shows that narcissism can cause knowledge barriers within organizations. Narcissists hinder cooperation between units due to a sense of superiority. |
| Visible light triggers molecular machines to treat infections Posted: 01 Jun 2022 11:28 AM PDT Chemists have created light-activated molecular machines and shown they can drill holes through the membranes of gram-negative and gram-positive bacteria, killing them in as little as two minutes. Their study offers a potential new strategy for fighting antibiotic-resistant bacteria, which have no natural defenses against the mechanical invaders. |
| How electric fish were able to evolve electric organs Posted: 01 Jun 2022 11:28 AM PDT A new study explains how small genetic changes enabled electric fish to evolve electric organs. The finding might also help scientists pinpoint the genetic mutations behind some human diseases. |
| Study examines why the memory of fear is seared into our brains Posted: 01 Jun 2022 10:30 AM PDT Neuroscientists have been studying the formation of fear memories in the emotional hub of the brain -- the amygdala -- and think they have a mechanism. |
| A 'Goldilocks amount' of time spent online could be good for teenagers' wellbeing Posted: 01 Jun 2022 08:18 AM PDT New research has found further evidence of a relationship between online engagement and mental wellbeing in teenagers. The study contributes to mounting international evidence on the dangers of high levels of digital media use. |
| New virus variant threatens the health of bees worldwide Posted: 01 Jun 2022 08:18 AM PDT A dangerous variant of the deformed wing virus is on the rise worldwide. The virus infects honeybees, causing their wings to atrophy and the animals to die. The new variant, which has already replaced the original strain of the virus in Europe, is spreading to other regions of the world and causing entire bee colonies to collapse. |
| How the brain responds to surprising events Posted: 01 Jun 2022 08:17 AM PDT Researchers have found that one key role of the neuromodulator noradrenaline, produced by the locus coeruleus, is to help the brain learn from surprising outcomes. |
| Cellular secrets of aging unlocked by researchers Posted: 01 Jun 2022 08:17 AM PDT Researchers have discovered how genetic mutations accumulated slowly over a lifetime lead to dramatic changes in how blood is formed after the age of 70, providing a new theory for aging. |
| Automated drones could scare birds off agricultural fields Posted: 01 Jun 2022 06:21 AM PDT A research team has developed a system where cameras could spot pest birds in vineyards or orchards and launch drones to drive off the avian irritants, then return to watch for the next invading flock. All without a human nearby. |
| Your genetic sex determines the way your muscle 'talks' to other tissues in your body: Study Posted: 31 May 2022 12:19 PM PDT A new study identifies sex-specific circuits of muscle signaling to other tissues and that the organs and processes muscle impacts are markedly different between males and females. This new discovery provides insight into how muscle functions, such as exercise, promote healthy longevity, metabolism and improve cognition. |
| Direct sound printing is a potential game-changer in 3D printing Posted: 31 May 2022 11:01 AM PDT Researchers describe a new platform technology called direct sound printing (DSP), which uses soundwaves to produce new objects. The paper explains show how focused ultrasound waves can be used to create sonochemical reactions in minuscule cavitation regions. Extremes of temperature and pressure lasting trillionths of a second can generate pre-designed complex geometries that cannot be made with existing techniques. |
| Why Uranus and Neptune are different colors Posted: 31 May 2022 11:01 AM PDT Astronomers may now understand why the similar planets Uranus and Neptune are different colors. Researchers have now developed a single atmospheric model that matches observations of both planets. The model reveals that excess haze on Uranus builds up in the planet's stagnant, sluggish atmosphere and makes it appear a lighter tone than Neptune. |
| How sleep builds relational memory Posted: 31 May 2022 08:18 AM PDT Researchers describe biological mechanism that allows sleep to build relational memories -- associations between unrelated items. |
| Great white sharks may have contributed to megalodon extinction Posted: 31 May 2022 08:18 AM PDT Using zinc isotopes, researchers investigated the diet of megalodon, the largest shark to have ever lived. |
| Cuttlefish camouflage may be more complex than previously thought Posted: 31 May 2022 07:26 AM PDT A new study suggests that the European cuttlefish may combine, as necessary, two distinct neural systems that process specific visual features from its local environment, and visual cues relating to its overall background environment to create the body patterns it uses to camouflage itself on the sea floor. |
| Posted: 30 May 2022 05:58 AM PDT Large floods will sometimes force a river to jump course and forge a new path across the landscape, in rare and catastrophic events known as river avulsions. Scientists have now published a global compilation of river avulsions. The study corroborates roughly a decade of theoretical and experimental work by the group, which fleshed out avulsions from what had been an understudied curiosity. |
| Seeing how odor is processed in the brain Posted: 27 May 2022 06:41 PM PDT A specially created odor delivery device, along with machine learning-based analysis of scalp-recorded electroencephalogram, has enabled researchers to see when and where odors are processed in the brain. The study found that odor information in the brain is unrelated to perception during the early stages of being processed, but when perception later occurred, unpleasant odors were processed more quickly than pleasant odors. Problems with odor perception can be an early symptom of neurodegenerative diseases, so uncovering more of the neural bases of odor perception could help towards better understanding of those diseases in future. |
| Smart, dissolving pacemaker communicates with body-area sensor and control network Posted: 26 May 2022 11:15 AM PDT Engineers have taken their transient pacemaker and integrated it into a coordinated network of four soft, flexible, wireless wearable sensors and control units placed on different anatomically relevant locations on the body. The sensors communicate with each other to continuously monitor the body's various physiological functions, including body temperature, oxygen levels, respiration, muscle tone, physical activity and the heart's electrical activity. The system then uses algorithms to analyze this combined activity in order to autonomously detect abnormal cardiac rhythms and decide when to pace the heart and at what rate. |
| Scientists shine new light on role of Earth's orbit in the fate of ancient ice sheets Posted: 26 May 2022 11:15 AM PDT Scientists have finally put to bed a long-standing question over the role of Earth's orbit in driving global ice age cycles. |
| Perplexing fish-like fossil finally classified Posted: 26 May 2022 06:55 AM PDT For the first time since its discovery 130 years ago one of the most mysterious fossil vertebrates has finally been classified, increasing our possible understanding of the first animals to crawl on Earth. |
| Aerodynamic analysis causes a rethink of the biggest pterosaur Posted: 20 May 2022 04:31 AM PDT Researchers shed light on the way Quetzalcoatlus would have flown, finding that the dinosaur's flying dynamics were actually very different to how it has been depicted in popular culture. |
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