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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

Wither heavy storms

Researchers created a model, STORM, to simulate watershed rainfall under various climate change scenarios. They found that while overall rainfall is increasing, individual storms are becoming less intense and delivering less water, leading to declining runoff and affecting regional water resources. This study provides insights into the...

How global warming is drying up the North American monsoon

A new study by Princeton University researchers reveals that the North American monsoon is facing a dramatic reduction in precipitation, with significant implications for regional water resources and hazards. The study corrects for sea surface temperature biases and suggests that the region's famous thunderstorms may become less common.

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.

NASA sees post Tropical Cyclone Nate's wide rainfall reach

NASA-NOAA's Suomi NPP satellite captured thermal images of cloud top temperatures from Post-tropical cyclone Nate, revealing coldest temperatures in storms over the Mid-Atlantic States. The storm brought moderate to heavy rainfall to the central Appalachians and Mid-Atlantic regions.

NASA analyzes Tropical Storm Nate

Tropical Storm Nate is forecasted to produce life-threatening flash floods and mudslides across a wide area of Central America. The storm's center is expected to move across the northwestern Caribbean Sea, reaching the eastern coast of Mexico before moving into the southern Gulf of Mexico.

NASA finds heavy rainfall in developing Tropical Storm Nate

Heavy rainfall is expected to occur over a wide area, including locations well away from the center, along the Pacific coast of Central America. The tropical cyclone is forecast to strengthen as it moves over the Gulf of Mexico, threatening coastal areas from Louisiana through the Florida panhandle.

Apple iPhone 17 Pro

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

World's most advanced shipborne radar ready to set sail

A team led by Professor Steven Rutledge will test the SEA-POL radar in the intertropical convergence zone near the Equator. The radar uses dual polarization technology to measure ocean rainfall and collect detailed information about clouds.

OU researchers receive $1.8 million NSF grant to predict heavy rainfall events

A University of Oklahoma research team led by Elinor Martin will apply statistical and artificial intelligence methods to predict heavy rainfall events. The team aims to improve forecasting and increase communication between researchers, forecasters, and stakeholders to enhance societal resilience to extended periods of heavy rainfall.

Gamers have an advantage in learning

A study by Ruhr-University Bochum found that gamers excelled in a learning competition against non-gamers, particularly in situations with high uncertainties. This advantage is linked to increased brain activity in the hippocampus, a key region for learning and memory.

NASA satellites peer into a lop-sided Hurricane Maria

Hurricane Maria appears asymmetric due to vertical wind shear, with eastern clouds receiving more precipitation than the western side. GPM radar data shows light rain showers around the eye, but stronger storms are located northeast of the center.

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.

NASA-NOAA's Suomi NPP Satellite gets two looks at Hurricane Maria

The Suomi NPP satellite analyzed Hurricane Maria in visible and infrared light, revealing intense rainfall bands with rates of over 6.57 inches per hour. The satellite's data helped forecasters predict storm track and strengthen, with Maria expected to become a tropical storm by Tuesday night.

Satellite view of Post-Tropical Cyclone Jose fading

Post-Tropical Cyclone Jose is continuing to weaken off the New England coast, with maximum sustained winds near 45 mph. The storm's slow southeastward drift will impact Bermuda and the US east coast, causing dangerous surf and rip current conditions.

NASA tracking Hurricane Maria on Bahamas approach

NASA-NOAA's Suomi NPP satellite provided a thermal image of Hurricane Maria, revealing the strongest sides of the storm. The National Weather Service reported heavy rain causing flooding in eastern Puerto Rico, with flood warnings issued until 5:45 p.m. EDT.

Fires in Australia pop up in places already burned

Fires have broken out in areas previously burned by previous fires, highlighting the ongoing risk of wildfires in Australia. Heavy rainfall and overgrowth have created fire conditions that can spread quickly, putting new areas at risk.

DJI Air 3 (RC-N2)

DJI Air 3 (RC-N2) captures 4K mapping passes and environmental surveys with dual cameras, long flight time, and omnidirectional obstacle sensing.

NASA finds very heavy rainfall in Hurricane Maria

The Global Precipitation Measurement mission found extreme storms within Hurricane Maria's feeder bands were dropping rain at an hourly rate of greater than 5.4 inches. The hurricane made landfall on Sept. 20 near Yabucoa, Puerto Rico, with maximum sustained winds reported to be 149.5 mph.

NASA tracking Jose meandering off US East Coast

Hurricane Jose is slowly moving northward off the U.S. East Coast, producing dangerous surf and rip currents along the coast of North Carolina and Long Island. The storm's movement and strength are being closely monitored by NASA's GPM satellite and NOAA's GOES East satellites.

Aranet4 Home CO2 Monitor

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NASA sees Tropical Depression Norma's small area of strength

Tropical Depression Norma has a smaller area of strong storms, with cloud top temperatures as cold as -63 degrees Fahrenheit, indicating potential for heavy rainfall. The depression is weakening and expected to degenerate into a remnant low on Wednesday, moving westward towards Mexico.

Changes in non-extreme precipitation may have not-so-subtle consequences

Researchers analyzed over five decades of data to find that changes in non-extreme precipitation are more significant than previously realized. The study highlights the importance of examining precipitation in a nuanced way, as even small changes can have a substantial impact on ecosystems and resource management.

Changes in nonextreme precipitation may have not-so-subtle consequences

Researchers analyzed over five decades of precipitation data from North America to find that changes in nonextreme precipitation are more significant than previously realized and larger than those in extreme precipitation. These changes can have a strong effect on ecosystems, agriculture, infrastructure design and resource management.

NASA sees Hurricane Jose off the US east coast

Hurricane Jose is producing dangerous surf and rip currents along the US east coast, with Tropical Storm Warnings and Watches in effect for several states. Satellite imagery shows the storm's asymmetric cloud pattern, indicating it is losing some tropical characteristics.

Garmin GPSMAP 67i with inReach

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NASA sees Hurricane Max make landfall and weaken

NASA's Aqua satellite captured Hurricane Max making landfall and quickly weakening, with the storm degenerating into a large area of low pressure. The coldest cloud tops were found around the center of circulation and over the coast of Guerrero state, indicating storms that reached high into the troposphere and generated heavy rain.

NASA gets a dramatic 3-D view of Typhoon Talim's large eye

Typhoon Talim's large eye was a distinctive feature in NASA's 3D image, showing intense rainfall on the western side and weaker rain to the east. Wind shear has pushed the upper-level eye northwest of the lower-level eye, with strongest storms on the western side.

NASA-NOAA satellite shows extent of Irma's remnants

The NASA-NOAA satellite captured images of Hurricane Irma's remnant clouds and rains covering a quarter of the continental US. The satellite data showed the extent of the storm's impact, with moderate to locally heavy rain expected in the Mid-South and Southeast regions.

NASA's GPM sees Typhoon Talim threatening islands of Japan

Typhoon Talim produces heavy precipitation in the northwestern Pacific Ocean, with storms dropping rain at rates of over 76 mm/hour and 120 mm/hour. The typhoon is expected to intensify as it moves towards Japan, with winds forecast to reach 115 knots.

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.

Irma's heavy rainfall measured by NASA's IMERG

Irma dropped extremely heavy rain, up to 20 inches, across Cuba and Florida, causing severe flooding. The post-tropical cyclone weakened over Georgia, but its remnants produced additional 1-3 inch rain accumulations across the southeastern US.

Decade of data shows FEMA flood maps missed 3 in 4 claims

A Rice University and Texas A&M-Galveston study found that FEMA's 100-year flood plain maps failed to capture 75 percent of flood damages from five serious floods. The research suggests that innovative computational tools can build more predictive maps, improving flood risk assessments.

NASA gets 'eyed' by major Hurricane Jose

NASA's Aqua satellite captures clear view of Hurricane Jose's eye as it strengthens into a Category 4 hurricane. Powerful storms surround the center, capable of heavy rainfall and powerful winds of up to 150 mph.

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Apple AirPods Pro (2nd Generation, USB-C) provide clear calls and strong noise reduction for interviews, conferences, and noisy field environments.

NASA's fleet of satellites covering powerful Hurricane Irma

Hurricane Irma's eye was characterized by extremely cold cloud top temperatures, indicating potential for heavy rainfall. NASA-NOAA's satellites captured detailed images of the storm's structure, including its well-defined eye and strong thunderstorms.

Satellites show Hurricane Katia crawling to the Mexico coast

Hurricane Katia is moving toward the west-southwest near 3 mph (6 km/h) and is expected to make landfall on Saturday, Sept. 9, bringing powerful bands of thunderstorms and heavy rainfall. The storm's eye is becoming more distinct, with a Hurricane Warning in effect for parts of Mexico.

Satellites show Hurricane Katia not moving much

Hurricane Katia strengthened into a hurricane on Sept. 6, with powerful bands of thunderstorms around its center, and is forecast to produce heavy rainfall and potentially major hurricane strength at landfall.

NASA finds Jose strengthening into a hurricane

NASA's GPM satellite detected strengthening in Tropical Storm Jose, indicating towering thunderstorms and heavy rain rates of over 5.3 inches per hour. The storm intensified into a hurricane on September 6, 2017, with maximum sustained winds near 90 mph.

NASA sees Tropical Storm Katia develop near Mexico's east coast

Tropical Storm Katia is developing near Mexico's east coast with maximum sustained winds of 45 mph and forecasted to produce 5-10 inches of rain over northern Veracruz. Strengthening is expected, potentially making it a hurricane before approaching the coast.

Apple iPad Pro 11-inch (M4)

Apple iPad Pro 11-inch (M4) runs demanding GIS, imaging, and annotation workflows on the go for surveys, briefings, and lab notebooks.

GPM satellite probes dangerous category 5 Hurricane Irma

The GPM core observatory satellite passed over Irma on September 5, 2017, revealing intense rainfall within the storm's eyewall. The satellite's radar data showed extremely powerful storms reaching altitudes of over 10 miles, with precipitation rates exceeding 10.8 inches per hour.

NASA sees Irma strengthen to a category 5 hurricane

Hurricane Irma has strengthened to a Category 5 hurricane with maximum sustained winds near 175 mph, posing an extremely dangerous threat to the northern Leeward Islands. NASA and NOAA satellites have been providing critical imagery and data to forecasters, indicating significant fluctuations in intensity over the next few days.

NASA examines Hurricane Lidia's eye on the Baja

Hurricane Lidia made landfall on the Baja California peninsula, bringing soaking rains and threatening life-threatening flash floods. The storm's strongest storms surrounded its center, with coldest cloud top temperatures exceeding minus 81 degrees Fahrenheit.

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AmScope B120C-5M Compound Microscope supports teaching labs and QA checks with LED illumination, mechanical stage, and included 5MP camera.

NASA gets a night-time and under-the-hood look at Hurricane Irma

The Suomi NPP Satellite provided a night-time image of Hurricane Irma, revealing powerful thunderstorms with cloud top temperatures as cold as 190 kelvin. The Global Precipitation Measurement (GPM) mission confirmed heavy rainfall within the hurricane, with a convective storm dropping rain at a rate of almost 6.3 inches per hour.

Celestron NexStar 8SE Computerized Telescope

Celestron NexStar 8SE Computerized Telescope combines portable Schmidt-Cassegrain optics with GoTo pointing for outreach nights and field campaigns.

Jordan faces likelihood of much more frequent long and severe droughts

A new study suggests that Jordan may face disastrous droughts if alternative water sources are not implemented. Climate change and water scarcity could lead to a decline in rainfall, higher temperatures, and reduced freshwater supply, making it difficult for the country to meet its water demands.

NASA shows how Harvey saturated areas in Texas

Hurricane Harvey's rainfall caused widespread saturation in southeastern Texas, which already showed signs of moisture levels near 20-40% before the storm made landfall. NASA's data also revealed exceptionally wet conditions in southwest Houston after Harvey's arrival, exacerbating the flooding issue.

Davis Instruments Vantage Pro2 Weather Station

Davis Instruments Vantage Pro2 Weather Station offers research-grade local weather data for networked stations, campuses, and community observatories.

NASA sees Tropical Storm Harvey moving back into the Gulf

Tropical Storm Harvey is expected to produce heavy rainfall accumulations of 15-25 inches over the upper Texas coast and into southwestern Louisiana. The storm's center is located near Port O'Connor, Texas, with maximum sustained winds near 40 mph and slight re-strengthening possible later today.

NASA calculates Tropical Storm Harvey's flooding rainfall

Using satellite data, NASA calculated Tropical Storm Harvey's accumulated effects of rain, with totals reaching on the order of 20 inches near Galveston Bay and over 10 inches in western Louisiana. The analysis shows widespread massive flooding across the region, similar to Tropical Storm Allison in 2001.

NASA infrared data shows Harvey's powerful rainmaking capability

Tropical Storm Harvey showed powerful storms that could produce heavy rainfall, with cloud top temperatures as cold as minus 63 degrees Fahrenheit. The storms were detected by NASA's Aqua satellite and identified areas extending from southeastern Texas into southeastern Louisiana.

NASA sees a slow-moving, soaking Tropical Storm Harvey

Tropical Storm Harvey continues to generate significant rainfall over southeastern Texas, with forecasters predicting catastrophic flooding. NASA satellite imagery shows the storm's elongated center of circulation and extensive thunderstorms stretching into Louisiana.

GQ GMC-500Plus Geiger Counter

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NASA analyzes Hurricane Harvey's rainfall, sees landfall

Harvey's heavy rainfall was measured by NASA's GPM satellite, showing intense storms dropping rain at a rate greater than 3.2 inches per hour. The storm's eye made landfall as a Category 4 hurricane between Port Aransas and Port O'Connor, Texas, causing catastrophic flooding. The National Hurricane Center predicts total rain accumulati...

NASA gets an in-depth look at intensifying Hurricane Harvey

NASA used its Global Precipitation Mission (GPM) satellite to analyze Hurricane Harvey's intense rainfall, revealing powerful storms dropping rain at a rate of over 2.1 inches per hour. The hurricane is expected to produce devastating and life-threatening flooding in Texas and Louisiana, with maximum sustained winds near 110 mph.

NASA finds heavy rainfall in intensifying Tropical Storm Harvey

Tropical Storm Harvey is intensifying with heavy rainfall, forecast to bring life-threatening flooding and strong winds to the middle Texas coast. The National Hurricane Center predicts rain accumulations of 12-20 inches in some areas, with totals exceeding 30 inches in isolated regions.

NASA sees Tropical Depression Harvey's rebirth

Tropical Depression Harvey has regenerated into a tropical depression in the Gulf of Mexico, with NASA tracking its cloud pattern and temperature. The National Hurricane Center predicts heavy rain accumulations of 10-15 inches over Texas and Louisiana, with storms potentially exceeding -63 degrees Fahrenheit, capable of generating heav...

Fluke 87V Industrial Digital Multimeter

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