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Phys.org · 实时热榜

HISTORY2026年8月1日80 不同热搜
07/2308/21 有历史数据
DAILY UNIQUE TOPICS80 个热搜
  1. 01
    Pacific 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 121:57 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
  2. 02
    Moonlight-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 123:01 达到23:01 首次观测上榜当日结束时仍在榜累计约48分钟
  3. 03
    Sensor-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 120:05 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
  4. 04
    Diego 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 101:41 达到01:41 首次观测上榜19:01 观测离榜累计约17小时20分
  5. 05
    Lichen-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 103:49 达到03:49 首次观测上榜当日结束时仍在榜累计约20小时
  6. 06
    A 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 118:13 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
  7. 07
    Diamond'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 100:00 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
  8. 08
    Consumer 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 100:05 达到00:05 首次观测上榜05:09 观测离榜累计约5小时4分
  9. 09
    Magnetic 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 101:25 达到01:25 首次观测上榜18:29 观测离榜累计约17小时4分
  10. 10
    Curiosity 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 100:21 达到00:21 首次观测上榜05:25 观测离榜累计约5小时4分
  11. 11
    Agricultural 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 100:53 达到00:53 首次观测上榜06:29 观测离榜累计约5小时36分
  12. 12
    Cretaceous 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 102:45 达到02:45 首次观测上榜21:57 观测离榜累计约19小时12分
  13. 13
    A 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 101:09 达到01:09 首次观测上榜15:01 观测离榜累计约13小时52分
  14. 14
    Shark 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 103:01 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
  15. 15
    New 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 120:53 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
  16. 16
    New 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 102:13 达到02:13 首次观测上榜20:05 观测离榜累计约17小时52分
  17. 17
    A 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 103:33 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
  18. 18
    Why 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 102:29 达到02:29 首次观测上榜20:53 观测离榜累计约18小时24分
  19. 19
    ELT'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 104:05 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
  20. 20
    Isotopic 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 104:21 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
  21. 21
    From 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 104:53 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
  22. 22
    Smarter 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 105:09 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
  23. 23
    Laying 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 105:25 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
  24. 24
    Deadly 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 119:01 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
  25. 25
    Solar 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 118:29 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
  26. 26
    Fish 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 106:29 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
  27. 27
    Moonquakes 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 105:41 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
  28. 28
    Ancient 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 119:33 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
  29. 29
    Researchers 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 121:25 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
  30. 30
    Strengthening 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 115:01 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
  31. 31
    Modified 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 202:13 达到02:13 首次观测上榜19:33 观测离榜累计约17小时20分
  32. 32
    Quantum 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 220:05 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
  33. 33
    Ancient 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 200:21 达到00:21 首次观测上榜05:25 观测离榜累计约5小时4分
  34. 34
    Newsom 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 200:00 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
  35. 35
    New 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 200:05 达到00:05 首次观测上榜04:53 观测离榜累计约4小时48分
  36. 36
    Only 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 200:53 达到00:53 首次观测上榜05:41 观测离榜累计约4小时48分
  37. 37
    Ancient 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 201:09 达到01:09 首次观测上榜15:01 观测离榜累计约13小时52分
  38. 38
    Experts 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 202:29 达到02:29 首次观测上榜20:05 观测离榜累计约17小时36分
  39. 39
    French, 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 201:25 达到01:25 首次观测上榜18:13 观测离榜累计约16小时48分
  40. 40
    New 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 201:41 达到01:41 首次观测上榜19:01 观测离榜累计约17小时20分
  41. 41
    New 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 203:33 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
  42. 42
    Optimized 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 204:05 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
  43. 43
    Mathematical 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 202:45 达到02:45 首次观测上榜21:25 观测离榜累计约18小时40分
  44. 44
    A 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 203:01 达到03:01 首次观测上榜23:01 观测离榜累计约20小时
  45. 45
    Technical 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 203:49 达到03:49 首次观测上榜当日结束时仍在榜累计约20小时
  46. 46
    Art 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 205:25 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
  47. 47
    Homing 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 204:21 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
  48. 48
    Newly 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 204:53 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
  49. 49
    A 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 205:09 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
  50. 50
    Leave 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 219:01 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