
Phys.org · 实时热榜
- 01Pacific cloud brightening could weaken El Nino, but models reveal risks for Europe and Asia
A brewing "super" El Nino cycle is poised to unleash heat waves, floods and drought worldwide, with the effects amplified by long-term human-caused climate change.
最高第 1 名21:57 达到21:57 首次观测上榜当日结束时仍在榜累计约1小时52分 - 02Moonlight-like fur and feathers may explain Egyptian god Thoth's two animal forms
The ancient Egyptian god of the moon had two very different faces: a crescent-beaked white bird and a silver-coated baboon. Now, researchers think they may have found the common thread connecting them all.
最高第 1 名23:01 达到23:01 首次观测上榜当日结束时仍在榜累计约48分钟 - 03Sensor-embedded 3D-printed repairs could help preserve ancient pottery
Koç University researchers have developed a conservation method that combines photogrammetry, digital modeling, 3D printing and embedded sensors to replace missing sections of archaeological amphorae. The customized fills can also monitor environmental and physical changes affecting the artifacts, offering a systematic approach to their conservation and long-term preservation.
最高第 1 名20:05 达到20:05 首次观测上榜当日结束时仍在榜累计约3小时44分 - 04Diego Rivera claimed his mural Creation was half wax, but chemical forensics says otherwise
Adorning the walls of San Ildefonso College in Mexico City is artist Diego Rivera's masterpiece, rendered in fresco and gold leaf, The Creation, or La Creacioń. It depicts a man standing with his arms outstretched beneath a deep blue celestial disk studded with stars and constellations, while figures seated on clouds watch from either side. The work catalyzed the revival of the encaustic painting technique in the 1920s.
最高第 1 名01:41 达到01:41 首次观测上榜19:01 观测离榜累计约17小时20分 - 05Lichen-like life 600 million years ago may push back origins of fungal-algal partnerships
Two organisms inhabiting a common environment can sometimes mutually influence each other, either benefiting or, in some cases, damaging one another. This mutually beneficial or ambivalent biological relationship is known as symbiosis.
最高第 1 名03:49 达到03:49 首次观测上榜当日结束时仍在榜累计约20小时 - 06A rollercoaster of weather extremes: Drought and heat waves are creating UK's climate whiplash
The UK is bouncing from one type of extreme weather to another this year. This is climate whiplash. Caused by changes in the fast-moving body of air high in the atmosphere called the jet stream, climate whiplash has become more likely with climate change. These constant shifts in extreme weather make it challenging to build resilience.
最高第 1 名18:13 达到18:13 首次观测上榜当日结束时仍在榜累计约5小时36分 - 07Diamond's newfound defect may tame vibrations that hinder quantum light sources
Researchers in the Department of Electrical and Computer Engineering at the University of Illinois Urbana-Champaign have discovered a new type of quantum light emitter in diamonds that could help overcome a number of challenges facing quantum technologies.
最高第 1 名00:00 达到当日首次采集时已在榜04:53 观测离榜累计约4小时54分 - 08Consumer confidence rises for second straight month; views remain downbeat amid high prices
Consumer sentiment confirmed its early-July reading, landing almost 12% above June, according to the University of Michigan Surveys of Consumers.
最高第 1 名00:05 达到00:05 首次观测上榜05:09 观测离榜累计约5小时4分 - 09Magnetic nanoparticles remove forever chemicals from water
PFAS, otherwise known as forever chemicals, have become commonplace in numerous everyday and industrial products. At the same time, they are some of the most problematic pollutants of our times: They are extremely durable, accumulate in the environment and in organisms and can only be removed from water with difficulty.
最高第 1 名01:25 达到01:25 首次观测上榜18:29 观测离榜累计约17小时4分 - 10Curiosity Blog, Sols 4961-4967: Approaching a break in the rock record?
Curiosity spent the week continuing to climb her way through the layers of Mount Sharp, exploring the sedimentary rock strip chart of Martian history. The rover has reached a layer where the science team had spotted a possible "erosional supersurface" by analyzing orbital data alongside images of the layers in the buttes above us.
最高第 1 名00:21 达到00:21 首次观测上榜05:25 观测离榜累计约5小时4分 - 11Agricultural waste could fuel protein-rich black soldier fly larvae for human foods
They're wriggly black grubs more commonly tossed to backyard hens than served at the dinner table, but black soldier fly larvae could soon play a key role in building a more sustainable food system, according to new research from Adelaide University.
最高第 1 名00:53 达到00:53 首次观测上榜06:29 观测离榜累计约5小时36分 - 12Cretaceous beetle fossil reveals early evolution of firefly sensory and signaling systems
Scientists have discovered a remarkably well-preserved 100-million-year-old beetle fossil that provides a rare glimpse into the evolution of the intricate sensory and communication systems used by fireflies and their relatives today. Fireflies belong to the order Coleoptera, which includes all beetles.
最高第 1 名02:45 达到02:45 首次观测上榜21:57 观测离榜累计约19小时12分 - 13A discarded SpaceX rocket is on a high-speed collision course with the moon
A drifting SpaceX rocket is on a collision course with the moon after launching a pair of lunar landers more than a year ago.
最高第 1 名01:09 达到01:09 首次观测上榜15:01 观测离榜累计约13小时52分 - 14Shark finning regulations have not significantly changed global trade, new analysis finds
Much like caviar, shark fins are a luxury product and delicacy in parts of the world. And like wild caviar, demand for shark fins has posed an incredible threat to species that can't reproduce quickly enough to keep up.
最高第 1 名03:01 达到03:01 首次观测上榜当日结束时仍在榜累计约20小时48分 - 15New immune-blocking strategy improves interspecies organ generation
Xenophagocytosis is a natural immune process that limits interspecies organ generation by eliminating living donor cells, researchers at the Institute of Science Tokyo, Japan, report. By uncovering how embryonic macrophages eliminate living donor cells, the researchers developed strategies to block this response. Using this strategy, they significantly improved donor cell survival and the generation of rat pancreas in mice, bringing us one step closer to producing transplantable human organs in
最高第 1 名20:53 达到20:53 首次观测上榜当日结束时仍在榜累计约2小时56分 - 16New open-source software predicts energy transfer between tiny defects in solid materials
The performance of many next-generation devices depends on controlling how energy flows at extremely small scales. In the field of microelectronics—where devices continue to shrink and new materials are introduced—small imperfections in solids can strongly influence how a material stores, transfers or loses energy. Those processes can either be used to improve device performance or create problems such as energy loss, information loss, signal disruption or reduced reliability.
最高第 1 名02:13 达到02:13 首次观测上榜20:05 观测离榜累计约17小时52分 - 17A backup fluoride defense in soil bacteria could aid greener chemical production
Researchers at the University of Tartu have discovered a mechanism in bacteria that helps them adapt to fluoride, which is toxic to most organisms above relatively low threshold concentrations. Their discovery may represent a significant milestone in bioindustry, as it could help reduce the use of petrochemical products.
最高第 1 名03:33 达到03:33 首次观测上榜当日结束时仍在榜累计约20小时16分 - 18Why is gaining citizen support for climate policies so difficult?
A study led by Marc Guinjoan, a lecturer in the Department of Political Science and Public Administration at the UAB, with researchers Toni Rodon of the UPF and Joel Ardiaca of the UB, reveals that citizen support for climate policies depends largely on how the costs, benefits and redistributive effects are communicated. The research, published in the journal West European Politics and based on two experiments using representative samples of the Spanish population, explains why specific climate
最高第 1 名02:29 达到02:29 首次观测上榜20:53 观测离榜累计约18小时24分 - 19ELT's spectrograph could 'sniff out' biosignatures on other worlds
Before any major telescope commissioning, there are dozens of papers that attempt to define what we can expect from it. We're starting to see some come through for the Extremely Large Telescope (ELT), which hopefully will get a more imaginative name when the 39 m (128-foot) behemoth is officially commissioned in Chile in the 2030s.
最高第 1 名04:05 达到04:05 首次观测上榜当日结束时仍在榜累计约19小时44分 - 20Isotopic analysis may help police combat illegal timber trade in Amazon
A map showing the distribution of isotopes in Amazonian tree wood can help identify illegally harvested timber. By analyzing the ratio of different isotopes of elements such as oxygen, carbon, nitrogen and strontium, researchers can pinpoint the region where the wood was harvested more precisely. This helps combat the illegal timber trade.
最高第 1 名04:21 达到04:21 首次观测上榜当日结束时仍在榜累计约19小时28分 - 21From research to policy: Study turns EU wildfire assessments into a tool for better governance
Climate change, land-use change and socioeconomic pressures are turning wildfires from a primarily ecological process into a complex, systemic risk that cuts across ecosystems, infrastructure, public health, water resources, cultural heritage and rural livelihoods. Despite substantial investments in firefighting capacity, wildfires are projected to become more frequent, extreme and devastating, underscoring the need for cross-cutting solutions.
最高第 1 名04:53 达到04:53 首次观测上榜当日结束时仍在榜累计约18小时56分 - 22Smarter fish farms could cut electricity use and CO₂ while keeping fish safe
Recirculating aquaculture systems (RAS) are attracting growing attention as a sustainable aquaculture technology that can reduce water use, control rearing conditions and lower environmental impacts by filtering and reusing water. At the same time, RAS facilities rely on pumps, filters, aerators and other equipment that are often operated continuously or according to conservative fixed schedules, resulting in substantial electricity consumption to maintain stable rearing conditions.
最高第 1 名05:09 达到05:09 首次观测上榜当日结束时仍在榜累计约18小时40分 - 23Laying odds on the potential for Martian water near future landing zones
We know Mars has water ice in its polar regions, but astronauts (and their solar-powered equipment!) would much rather experience life closer to Mars' equator. As NASA looks toward landing humans on the red planet, the Planetary Science Institute (PSI) is mapping where water should and shouldn't be found and using statistics to quantify its certainty. Two new papers, led by PSI's Hanna Sizemore and Samuel Courville, highlight new global maps of subsurface water ice and identify the missions and
最高第 1 名05:25 达到05:25 首次观测上榜当日结束时仍在榜累计约18小时24分 - 24Deadly blooms offer a genetic blueprint for making hard-to-synthesize medicinal compounds
Two plants that cause neurotoxicity and paralysis in the tiniest doses are also known to counter pain, malaria, cancer and pests. For the first time, researchers discovered a way to recreate these powerful compounds in the lab, helping lead the way to improved, naturally sourced therapeutics.
最高第 1 名19:01 达到19:01 首次观测上榜当日结束时仍在榜累计约4小时48分 - 25Solar wind stirs Mars' upper atmosphere, boosting ion loss to space
Our sun constantly releases a stream of high-speed charged particles, known as the solar wind. Unlike Earth, Mars does not have a strong global magnetic field to shield its atmosphere from this flow. As a result, the solar wind can interact directly with Mars' upper atmosphere and gradually strip atmospheric particles into space.
最高第 1 名18:29 达到18:29 首次观测上榜当日结束时仍在榜累计约5小时20分 - 26Fish pathogens once limited to Asia and US emerge in Brazilian farms
For the first time in Brazil, scientists have identified the presence of bacteria that cause columnaris disease, a serious disease in farmed fish intended for human consumption. Previously, different species of the genus Flavobacterium had only been detected in fish farms in Asia and the United States.
最高第 1 名06:29 达到06:29 首次观测上榜当日结束时仍在榜累计约17小时20分 - 27Moonquakes could reveal ice buried beneath lunar south polar craters
Finding water on the moon may only be a matter of detecting the right vibrations.
最高第 1 名05:41 达到05:41 首次观测上榜当日结束时仍在榜累计约18小时8分 - 28Ancient diamond preserves evidence of water-bearing mineral deep in Earth's mantle
A team of Brazilian researchers discovered the first direct evidence that goethite—the mineral responsible for the brown color of soils—can withstand extreme pressures and temperatures all the way to the planet's interior inside a diamond just 3 millimeters (0.1 inch) long, within a microscopic impurity. Goethite forms in soil and on the ocean floor from iron-rich minerals in the presence of water. It incorporates some of these water molecules into its mineral structure. The study suggests that
最高第 1 名19:33 达到19:33 首次观测上榜当日结束时仍在榜累计约4小时16分 - 29Researchers investigate case of soft-tick borne relapsing fever in Austin area
Researchers at Baylor College of Medicine and the Texas Department of State Health Services have reported a likely case of soft tick-borne relapsing fever (STRF) in an Austin-area resident. Now, they highlight the growing risk of exposure to infected ticks in urban and residential settings. The study appeared in Open Forum Infectious Diseases.
最高第 1 名21:25 达到21:25 首次观测上榜当日结束时仍在榜累计约2小时24分 - 30Strengthening El Nino 'adding fuel to a planet already on fire': UN chief
A strengthening El Niño that could shatter all-time records is "adding fuel to a planet already on fire" and pushing the world into "uncharted territory," U.N. Secretary-General Antonio Guterres warned Friday.
最高第 1 名15:01 达到15:01 首次观测上榜当日结束时仍在榜累计约8小时48分 - 31Modified cell vesicles trigger 'lipid counterstorm' against lung inflammation in mice
The COVID-19 pandemic highlighted severe consequences of unchecked respiratory disease, including cytokine storms. This phenomenon affected many COVID-19 patients and is a potential side effect of many other diseases involving significant inflammation, but approaches to treating these symptoms remain unclear.
最高第 2 名02:13 达到02:13 首次观测上榜19:33 观测离榜累计约17小时20分 - 32Quantum computer completes verified task beyond practical reach of classical simulations
IBM and researchers from the University of Chicago announced a demonstration in quantum computing that meets the fundamental criteria for "quantum advantage"—the point where quantum computers can be confirmed to have outperformed classical computers on trusted computations.
最高第 2 名20:05 达到20:05 首次观测上榜当日结束时仍在榜累计约3小时44分 - 33Ancient Rome's food shortages were shaped more by logistics than climate
Ancient Rome's greatest threat to food security wasn't the weather but the challenge of getting grain to the capital, according to a new study. By comparing hundreds of years of historical records with reconstructions of past climate, researchers found that periods of unusual heat, cold, drought or heavy rainfall rarely lined up with reported food shortages.
最高第 2 名00:21 达到00:21 首次观测上榜05:25 观测离榜累计约5小时4分 - 34Newsom reverses on long-sought paid leave benefit for California teachers
The majority of California's roughly 300,000 teachers don't have access to the state-funded paid leave program that most new parents in the private sector do. Instead, many local school districts deduct the cost of a substitute teacher from educators' pay during parental leave.
最高第 2 名00:00 达到当日首次采集时已在榜04:21 观测离榜累计约4小时22分 - 35New method flags hurricane rapid intensification up to five days ahead
The rapid intensification of a hurricane ranks among the most dangerous weather events on Earth. Storms such as Hurricane Michael, which crashed ashore in the Florida Panhandle with winds of 160 mph (about 257 km/h), and Hurricane Otis, the costliest hurricane to strike Mexico's Pacific coast, caught communities unawares when they intensified at a rate that computer models failed to anticipate.
最高第 2 名00:05 达到00:05 首次观测上榜04:53 观测离榜累计约4小时48分 - 36Only 1 in 3 people arrested by ICE have a criminal conviction, research reveals
Just 34% of people arrested by the U.S. Immigration and Customs Enforcement agents during President Donald Trump's second term have a criminal conviction, according to research published in the Proceedings of the National Academy of Sciences. That's a near-historic low, the authors note.
最高第 2 名00:53 达到00:53 首次观测上榜05:41 观测离榜累计约4小时48分 - 37Ancient Irish volcano offers new clues about the development of its modern-day, active 'brothers and sisters'
An international team of volcanologists working on Carlingford Mountain has found that liquid "magma chambers" do not always exist beneath volcanoes. The team instead demonstrated that magma "plumbing systems" beneath Earth's surface can fluctuate between solid- and liquid-dominated states, providing an improved view of how active volcanoes evolve through time.
最高第 2 名01:09 达到01:09 首次观测上榜15:01 观测离榜累计约13小时52分 - 38Experts survey the glacier ice on Mount Ararat for the first time
Facing wind and cold, with only half as much oxygen to breathe as in the valley, a German-Turkish research team surveyed the glacier on Mount Ararat in eastern Turkey for the first time in July, at more than 5,000 meters (16,400 feet) above sea level. For two weeks, the team explored the ice field, which until then had been a blank page for researchers. Their goal was to find out whether the ice on Turkey's highest mountain preserves a unique archive of climate and cultural history.
最高第 2 名02:29 达到02:29 首次观测上榜20:05 观测离榜累计约17小时36分 - 39French, Italian winegrowers face earliest ever harvest
Scorching summer temperatures have disrupted life for millions of Europeans, but for winegrowers in Italy and France who are harvesting their grapes unusually early, the hot weather offers pros as well as cons.
最高第 2 名01:25 达到01:25 首次观测上榜18:13 观测离榜累计约16小时48分 - 40New low-water method could make production of clean-energy materials much greener
A new Concordia study has demonstrated a greener way to produce an important class of catalytic materials with promising potential for cleaner energy technologies that rely more on acoustic energy than water and chemicals. The work is published in the journal Advanced Synthesis & Catalysis.
最高第 2 名01:41 达到01:41 首次观测上榜19:01 观测离榜累计约17小时20分 - 41New blazes in Greece as strong winds hamper firefighting
New wildfires fed by strong winds broke out in Greece on Friday, giving firefighters little respite and forcing Civil Protection officials to order the partial evacuation of part of a suburb west of Athens.
最高第 2 名03:33 达到03:33 首次观测上榜当日结束时仍在榜累计约20小时16分 - 42Optimized magnetic pulses could cut memory switching energy by several orders of magnitude
Information and communication technologies (ICTs) driven by artificial intelligence (AI) are generating data at an unprecedented rate. Every internet search, AI-generated image, recommendation, scientific simulation and large language model creates and processes enormous amounts of information that must be stored, transferred and analyzed. As AI continues to expand across every sector of society, global demand for data storage and computing is rising dramatically.
最高第 2 名04:05 达到04:05 首次观测上榜当日结束时仍在榜累计约19小时44分 - 43Mathematical model devised to protect bacteriophages without hindering their action
A study by researchers in the UAB Department of Mathematics and the Center for Mathematical Research (CRM) presents a model describing the behavior of encapsulated bacteriophages within the gastrointestinal tract. Its objective is to better understand the advantages and limitations of encapsulation and determine under what conditions this strategy can contribute to improving treatment efficacy.
最高第 2 名02:45 达到02:45 首次观测上榜21:25 观测离榜累计约18小时40分 - 44A single RNA-based therapeutics approach against multiple types of RNA viruses
The high frequency of RNA virus mutations and outbreaks of emerging RNA viral infections are challenging public health issues. Developing a drug that can overcome viral mutations with broad-spectrum antiviral activity is an unmet need.
最高第 2 名03:01 达到03:01 首次观测上榜23:01 观测离榜累计约20小时 - 45Technical flaws may inflate Australia's forest carbon credits
AFPA has echoed serious concerns raised by Forestry Australia over the federal government's controversial new carbon credit method, warning it undermines the integrity and credibility of Australia's carbon market.
最高第 2 名03:49 达到03:49 首次观测上榜当日结束时仍在榜累计约20小时 - 46Art festivals may revive island communities when tourism stays within local limits
Grounding intermittent art festivals such as the Setouchi Triennale within the resource capacities and social thresholds of the island communities that host them is a path to the sustainable, long-term revitalization of these communities.
最高第 2 名05:25 达到05:25 首次观测上榜当日结束时仍在榜累计约18小时24分 - 47Homing in on the X-ray sky with eROSITA's second data release
The German eROSITA consortium (eROSITA-DE), which includes the University of Bonn and is led by the Max Planck Institute for Extraterrestrial Physics (MPE), has released its second major public data set, the "eROSITA Data Release 2" (DR2).
最高第 2 名04:21 达到04:21 首次观测上榜当日结束时仍在榜累计约19小时28分 - 48Newly discovered mechanism protects DNA during cell division
Every time a cell divides, it must accurately copy and distribute its DNA between two new cells. However, in some cases, chromosomes do not fully separate, leaving behind thin strands of DNA known as DNA bridges that connect the two newly formed cells.
最高第 2 名04:53 达到04:53 首次观测上榜当日结束时仍在榜累计约18小时56分 - 49A new genetic tool helps researchers uncover the logic of gene regulation
The human genome contains more than 20,000 genes. However, at any given time and in a given cell, only a fraction are active. Researchers from EMBL Heidelberg's Krebs Group have developed an innovative experimental approach to understand how cells determine which genes to turn on and when.
最高第 2 名05:09 达到05:09 首次观测上榜当日结束时仍在榜累计约18小时40分 - 50Leave it: Dog trainers help pets avoid poisonous snakes
Ripley, a medium-sized dog with a strong prey drive, curiously approached Brian, a large western diamondback rattlesnake, until she got a quick zap on the neck meant to simulate a venomous viper's bite.
最高第 2 名19:01 达到19:01 首次观测上榜当日结束时仍在榜累计约4小时48分



































