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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

Chemists unravel reaction mechanism for clean energy catalyst

Researchers at Brookhaven Lab used pulse radiolysis to study a key class of water-splitting catalysts, revealing the direct involvement of ligands in the reaction mechanism. The team discovered that a hydride group jumped onto the Cp* ligand, proving its active role in the process.

Cactus plant inspires cost-effective hydrogen production

Researchers at the University of Texas at El Paso have developed a nickel-based material that can split water into hydrogen gas more cheaply and efficiently. The material is designed to mimic the shape of the prickly pear cactus, which has an extensive surface area suitable for absorbing moisture and surviving in extreme environments.

Sony Alpha a7 IV (Body Only)

Sony Alpha a7 IV (Body Only) delivers reliable low-light performance and rugged build for astrophotography, lab documentation, and field expeditions.

Seawater split to produce green hydrogen

A team of researchers has successfully produced green hydrogen from seawater without pre-treatment, achieving nearly 100% efficiency. This breakthrough uses a non-precious and cheap catalyst in a commercial electrolyser, offering a solution to directly utilize seawater for hydrogen production.

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.

Good vibrations turbo charge green hydrogen production

Engineers at RMIT University have developed a method to boost green hydrogen production through electrolysis by up to 14 times using high-frequency vibrations. This innovation tackles the high cost of electrode materials and eliminates the need for corrosive electrolytes, making it cheaper and more efficient.

Non-noble catalyst for hydrogen production

Scientists have created a novel, noble-metal-free catalyst for producing hydrogen from water, which could lower costs and increase sustainability. The high-entropy alloy's remarkable performance and corrosion resistance were demonstrated in practical experiments.

Apple iPhone 17 Pro

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

Rice lab advances water-splitting catalysts

Engineers at Rice University have discovered a method to make oxygen evolution catalysis in acids more economical and practical. They replaced rare and expensive iridium with ruthenium, a far more abundant precious metal, as the positive-electrode catalyst in a reactor that splits water into hydrogen and oxygen.

Green hydrogen: Faster progress with modern X-ray sources

Researchers at Helmholtz-Zentrum Berlin for Materials and Energy are utilizing X-ray absorption spectroscopy to investigate oxygen evolution in electrocatalysis. This study aims to improve the efficiency of green hydrogen production by developing more stable and cost-effective catalysts.

Fuel from waste wood

Researchers at TUM have developed a new process for producing ethanol from waste wood and hydrogen, resulting in a lower cost compared to traditional methods. The process has the potential to reduce greenhouse gas emissions by 75% and can be used as a low-carbon fuel alternative.

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.

CalDigit TS4 Thunderbolt 4 Dock

CalDigit TS4 Thunderbolt 4 Dock simplifies serious desks with 18 ports for high-speed storage, monitors, and instruments across Mac and PC setups.

Rigol DP832 Triple-Output Bench Power Supply

Rigol DP832 Triple-Output Bench Power Supply powers sensors, microcontrollers, and test circuits with programmable rails and stable outputs.

Green hydrogen: Why do certain catalysts improve in operation?

Researchers discovered that certain catalyst materials, such as erythrite, improve in performance over time due to restructuring. This process increases the surface area of the material, allowing for more reactions to occur, resulting in higher oxygen yields and doubled electrical current generation.

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.

New tech can get oxygen, fuel from Mars's salty water

Engineers at Washington University in St. Louis have developed a brine electrolysis system that produces oxygen and hydrogen from salty water, potentially changing the game for Mars missions and resource utilization on Earth.

Sandwich catalysts offer higher activity and durability

Researchers at POSTECH have developed a new type of sandwich catalyst that can efficiently generate hydrogen energy through water electrolysis. The catalyst shows high activity and durability, outperforming conventional materials, with the potential to be applied to cost-effective hydrogen production processes.

GoPro HERO13 Black

GoPro HERO13 Black records stabilized 5.3K video for instrument deployments, field notes, and outreach, even in harsh weather and underwater conditions.

Scientists measured electrical conductivity of pure interfacial water

Researchers from Skoltech and German partners measure the electrical conductivity of pure interfacial water, finding it five orders of magnitude higher than bulk water. The discovery sheds light on complex fluids and has implications for electrochemical energy systems, membrane technologies, and nanofluidics.

The catalyst that removes CO2 and produces hydrocarbons

Researchers develop a catalyst that accelerates CO2 conversion into simple chemicals, transforming greenhouse gas into useful products for industry. The technology uses water electrolysers with a polymer coating to facilitate CO2 transport, increasing productivity and efficiency.

Green hydrogen: Research to enhance efficiency

A team of researchers from Helmholtz-Zentrum Dresden-Rossendorf has gained new insights into water electrolysis, aiming to enhance the environmental impact of hydrogen-based technologies. The findings offer a possible starting point for improving the efficiency of this process.

A breakthrough in acidic water electrolysis via ruthenium-based catalysts

Researchers from University of Science and Technology of China successfully developed a ruthenium-based single-atom alloy catalyst accelerating water electrolysis with lower overpotential. The catalyst shows improved stability and activity compared to commercial RuO2, making hydrogen production through water electrolysis more efficient.

Sky & Telescope Pocket Sky Atlas, 2nd Edition

Sky & Telescope Pocket Sky Atlas, 2nd Edition is a durable star atlas for planning sessions, identifying targets, and teaching celestial navigation.

Researchers immobilize underwater bubbles

A research team has developed a method to 'freeze' newly created microbubbles in their tracks, enabling potential applications in medicine, such as ultrasound contrast agents and gas embolotherapy. This breakthrough could also improve the nuclear industry by controlling microbubbles in liquid sodium coolant.

Controlling the movement of water through nanotube membranes

Scientists at Rensselaer Polytechnic Institute have developed a method to precisely control the movement of water through carbon nanotube membranes. By applying low-voltage electricity, they can switch between repelling and pumping water, paving the way for technologies like instant drinking water purification and DNA separation.

Fluke 87V Industrial Digital Multimeter

Fluke 87V Industrial Digital Multimeter is a trusted meter for precise measurements during instrument integration, repairs, and field diagnostics.