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Life Sciences

Comprehensive exploration of living organisms, biological systems, and life processes across all scales from molecules to ecosystems. Encompasses cutting-edge research in biology, genetics, molecular biology, ecology, biochemistry, microbiology, botany, zoology, evolutionary biology, genomics, and biotechnology. Investigates cellular mechanisms, organism development, genetic inheritance, biodiversity conservation, metabolic processes, protein synthesis, DNA sequencing, CRISPR gene editing, stem cell research, and the fundamental principles governing all forms of life on Earth.

447,757 articles | 2542 topics

Health and Medicine

Comprehensive medical research, clinical studies, and healthcare sciences focused on disease prevention, diagnosis, and treatment. Encompasses clinical medicine, public health, pharmacology, epidemiology, medical specialties, disease mechanisms, therapeutic interventions, healthcare innovation, precision medicine, telemedicine, medical devices, drug development, clinical trials, patient care, mental health, nutrition science, health policy, and the application of medical science to improve human health, wellbeing, and quality of life across diverse populations.

431,843 articles | 751 topics

Social Sciences

Comprehensive investigation of human society, behavior, relationships, and social structures through systematic research and analysis. Encompasses psychology, sociology, anthropology, economics, political science, linguistics, education, demography, communications, and social research methodologies. Examines human cognition, social interactions, cultural phenomena, economic systems, political institutions, language and communication, educational processes, population dynamics, and the complex social, cultural, economic, and political forces shaping human societies, communities, and civilizations throughout history and across the contemporary world.

260,756 articles | 745 topics

Physical Sciences

Fundamental study of the non-living natural world, matter, energy, and physical phenomena governing the universe. Encompasses physics, chemistry, earth sciences, atmospheric sciences, oceanography, materials science, and the investigation of physical laws, chemical reactions, geological processes, climate systems, and planetary dynamics. Explores everything from subatomic particles and quantum mechanics to planetary systems and cosmic phenomena, including energy transformations, molecular interactions, elemental properties, weather patterns, tectonic activity, and the fundamental forces and principles underlying the physical nature of reality.

257,913 articles | 1552 topics

Applied Sciences and Engineering

Practical application of scientific knowledge and engineering principles to solve real-world problems and develop innovative technologies. Encompasses all engineering disciplines, technology development, computer science, artificial intelligence, environmental sciences, agriculture, materials applications, energy systems, and industrial innovation. Bridges theoretical research with tangible solutions for infrastructure, manufacturing, computing, communications, transportation, construction, sustainable development, and emerging technologies that advance human capabilities, improve quality of life, and address societal challenges through scientific innovation and technological progress.

225,386 articles | 998 topics

Scientific Community

Study of the practice, culture, infrastructure, and social dimensions of science itself. Addresses how science is conducted, organized, communicated, and integrated into society. Encompasses research funding mechanisms, scientific publishing systems, peer review processes, academic ethics, science policy, research institutions, scientific collaboration networks, science education, career development, research programs, scientific methods, science communication, and the sociology of scientific discovery. Examines the human, institutional, and cultural aspects of scientific enterprise, knowledge production, and the translation of research into societal benefit.

193,043 articles | 157 topics

Space Sciences

Comprehensive study of the universe beyond Earth, encompassing celestial objects, cosmic phenomena, and space exploration. Includes astronomy, astrophysics, planetary science, cosmology, space physics, astrobiology, and space technology. Investigates stars, galaxies, planets, moons, asteroids, comets, black holes, nebulae, exoplanets, dark matter, dark energy, cosmic microwave background, stellar evolution, planetary formation, space weather, solar system dynamics, the search for extraterrestrial life, and humanity's efforts to explore, understand, and unlock the mysteries of the cosmos through observation, theory, and space missions.

29,662 articles | 175 topics

Research Methods

Comprehensive examination of tools, techniques, methodologies, and approaches used across scientific disciplines to conduct research, collect data, and analyze results. Encompasses experimental procedures, analytical methods, measurement techniques, instrumentation, imaging technologies, spectroscopic methods, laboratory protocols, observational studies, statistical analysis, computational methods, data visualization, quality control, and methodological innovations. Addresses the practical techniques and theoretical frameworks enabling scientists to investigate phenomena, test hypotheses, gather evidence, ensure reproducibility, and generate reliable knowledge through systematic, rigorous investigation across all areas of scientific inquiry.

21,889 articles | 139 topics

Mathematics

Study of abstract structures, patterns, quantities, relationships, and logical reasoning through pure and applied mathematical disciplines. Encompasses algebra, calculus, geometry, topology, number theory, analysis, discrete mathematics, mathematical logic, set theory, probability, statistics, and computational mathematics. Investigates mathematical structures, theorems, proofs, algorithms, functions, equations, and the rigorous logical frameworks underlying quantitative reasoning. Provides the foundational language and tools for all scientific fields, enabling precise description of natural phenomena, modeling of complex systems, and the development of technologies across physics, engineering, computer science, economics, and all quantitative sciences.

3,023 articles | 113 topics

Advance brings low-cost, bright LED lighting closer to reality

The new silicon-based LED research has the potential to replace all incandescent and compact fluorescent bulbs, offering dramatic energy and environmental benefits. The Purdue team's breakthrough allows for efficient production on low-cost metal-coated silicon wafers, reducing costs by up to 20 times.

Nikon Monarch 5 8x42 Binoculars

Nikon Monarch 5 8x42 Binoculars deliver bright, sharp views for wildlife surveys, eclipse chases, and quick star-field scans at dark sites.

Fecal microorganisms inhabit sandy beaches of Florida

Scientists discovered that fecal bacteria survive better in sand than seawater, with higher counts in dry sand above the intertidal zone. This finding has implications for beach managers, who may need to sample water further from shore to avoid complications of bacterial run-off.

Apple iPhone 17 Pro

Apple iPhone 17 Pro delivers top performance and advanced cameras for field documentation, data collection, and secure research communications.

Safer shipping by predicting sand wave behavior

Dutch researcher Joris van den Berg developed a mathematical model to predict sand wave movement, improving safety for shipping and offshore infrastructure. The model simplified equations, enabling quick predictions of interventions like dredging and potentially unlocking studies on sand waves and banks.

There is a dark side to the humble raindrop

Researchers analyzed interaction between individual raindrops and soil particles, dispelling a 50-year-old misconception about how rain-splash transport works. The study provides a theoretical model for the transfer of momentum carried by raindrops to sand grains.

APS physics tip sheet #61

Researchers at Rutgers University duplicated Martian razorback shapes using statically charged sand grains on acrylic. Meanwhile, DNA molecules and carbon nanotubes can convert rotational motion to linear translation, potentially solving a crucial problem in micromachine parts.

Soggy sands of Mars?

Researchers find patterns of cracks and thin fins on Mars resembling those formed by damp sand in New Mexico. The discoveries suggest the presence of water on Mars beyond polar ice caps.

Meta Quest 3 512GB

Meta Quest 3 512GB enables immersive mission planning, terrain rehearsal, and interactive STEM demos with high-resolution mixed-reality experiences.

Physicists describe strange new fluid-like state of matter

Researchers create a unique fluid-like state by combining air with granular materials, exhibiting unusual characteristics at room temperature. The team observed two stages in the jet's formation, highlighting the importance of air pressure in its development.

Coastal bluffs provide more sand to California beaches than previously believed

Researchers found that coastal bluffs and cliffs are a significant source of sand in Southern California beaches, accounting for half of the sand in the Oceanside Littoral Cell. The study uses laser-scanning technology to quantify bluff erosion with high accuracy, challenging conventional assumptions about beach sand supply.

Anker Laptop Power Bank 25,000mAh (Triple 100W USB-C)

Anker Laptop Power Bank 25,000mAh (Triple 100W USB-C) keeps Macs, tablets, and meters powered during extended observing runs and remote surveys.

Study shows how granular materials get themselves out of a jam

A team of physicists at the University of Chicago has measured the forces exerted between granular particles as they transition from a jammed state to a flowing state. The study shows that granular systems have an 'effective temperature' similar to glass, allowing particles to rearrange and flow.

Violent ocean motion no magic potion for reefs

Researchers study the impact of hurricanes on coral reefs in South Florida, finding a temporary removal of invasive seaweed. However, experts caution that without addressing nutrient pollution and its root causes, reefs will remain vulnerable to similar problems.

'Aggregate and the Environment'

The book provides detailed explanations of procedures used to manage and minimize environmental impacts of aggregate mining, processing, and transportation. It also highlights successful reclamation projects that convert mined areas into beneficial uses such as recreation areas and natural habitats.

Apple Watch Series 11 (GPS, 46mm)

Apple Watch Series 11 (GPS, 46mm) tracks health metrics and safety alerts during long observing sessions, fieldwork, and remote expeditions.

Remembrance of smells past

Researchers at UCL's Institute of Neurology found that memories are distributed across different brain regions, not just one area. This means that a single sense can reactivate a memory, rather than requiring all aspects to be recreated.

Ghost crab fossils haunt area beaches

Fossilized ghost crabs, up to 110,000 years-old, have been found on area beaches in central Florida. The rare discovery suggests that beach erosion, possibly caused by the construction of Port Canaveral, has exposed fossils that were previously hidden by dunes.

Pasta provides glimpse of earthquake fault friction forces

Researchers created a unique model to study earthquake fault friction forces using angel hair pasta, glass beads, and sand. They found that initial conditions and particle dimensionality have a significant impact on friction, with smooth particles producing different results than irregular ones.

SAMSUNG T9 Portable SSD 2TB

SAMSUNG T9 Portable SSD 2TB transfers large imagery and model outputs quickly between field laptops, lab workstations, and secure archives.

New dating technique with sand grains

Researchers from the University of Groningen have developed a method to measure damage in zircon and determine sand sediment ages. Zircon grains that have been exposed to sunlight for long periods produce more light when heated, allowing for accurate dating.

A little larceny comes naturally to Northwestern crows

Research reveals that Northwestern crows primarily monitor their surroundings for opportunities to steal food, rather than detecting predators. The birds use complex strategies to obtain food, including targeting invertebrates and smaller prey.

Deepsea cores offer new clues to earthquake cycles

Researchers have found evidence of recent earthquakes in a deep-sea core, suggesting the Cascadia subduction zone was active as recently as 300 years ago. The discovery provides new insights into earthquake cycles and helps establish methods to trace the history of earth's active crust.

Garmin GPSMAP 67i with inReach

Garmin GPSMAP 67i with inReach provides rugged GNSS navigation, satellite messaging, and SOS for backcountry geology and climate field teams.

Large river once flowed in south Florida

A massive sand delta, over 325 feet thick and nearly 22 miles wide, was found in ancient shorelines of South Florida. This discovery suggests a river system significantly larger than present-day Florida once flowed through the state.

Duke study: Poured sand sifts, but showered sand doesn't

A Duke study reveals that the pressures under poured sandpiles are highest at their peripheries due to unbalanced distributions of stresses. In contrast, showered sand piles concentrate stresses at their centers like medieval cathedrals' flying buttresses. This research has practical importance for structures prone to self-destruction.