Drylands in the western United States are currently in the grips of a 23-year "megadrought," and one West Virginia University researcher is working to gain a better understanding of this extreme climate event.
Earth Sciences
9 hours ago
0
10
NASA's Goddard Space Flight Center in Greenbelt, Maryland, will build a moonquake detector for astronauts to deploy on the moon in 2026 during the Artemis III mission, which will return astronauts to the lunar surface for ...
Space Exploration
Apr 17, 2024
0
3
The final downlink shift by the Ingenuity team was a time to reflect on a highly successful mission—and to prepare the first aircraft on another world for its new role.
Space Exploration
Apr 17, 2024
0
26
Researchers from Germany and Singapore have studied a non-equilibrium state of Fermi liquids called the Floquet Fermi liquid (FFL), which is formed when Fermi liquids are subjected to a periodic driving force and kept in ...
When designing repositories for high-level radioactive waste in deep geological layers, various factors must be carefully considered to ensure their long-term safety. Among other things, natural communities of microorganisms ...
Earth Sciences
Apr 16, 2024
0
73
Most people are aware of earthworms, but probably give them little thought. Some have a notion they are "good for the soil". Others regard them with distaste and think of slimy animals associated with decay. But these alien-looking ...
Plants & Animals
Apr 16, 2024
0
1
Microscopic chasms forming a sea of conical jagged peaks stipple the surface of a material called black silicon. While it's commonly found in solar cell tech, black silicon also moonlights as a tool for studying the physics ...
General Physics
Apr 16, 2024
0
11
As sea levels rise, coastal groundwater is lifted closer to the ground surface while also becoming saltier and more corrosive. A recent study by Earth scientists at the University of Hawai'i (UH) at Mānoa has compiled research ...
Earth Sciences
Apr 15, 2024
0
2
Dangerous concentrations of long-lingering "forever chemicals" have been found in surface and groundwater worldwide, according to a study released Tuesday that showed Australia, the United States and Europe as hotspots.
Environment
Apr 13, 2024
0
14
Defeating dust may be a small concern for most people on Earth, but for astronauts and spacecraft destined for the moon or Mars, it is a significant hazard that must be mitigated. That's why researchers at NASA's Kennedy ...
Space Exploration
Apr 11, 2024
0
27
In mathematics, specifically in topology, a surface is a two-dimensional topological manifold. The most familiar examples are those that arise as the boundaries of solid objects in ordinary three-dimensional Euclidean space R3 — for example, the surface of a ball or bagel. On the other hand, there are surfaces which cannot be embedded in three-dimensional Euclidean space without introducing singularities or intersecting itself — these are the unorientable surfaces.
To say that a surface is "two-dimensional" means that, about each point, there is a coordinate patch on which a two-dimensional coordinate system is defined. For example, the surface of the Earth is (ideally) a two-dimensional sphere, and latitude and longitude provide coordinates on it — except at the International Date Line and the poles, where longitude is undefined. This example illustrates that not all surfaces admits a single coordinate patch. In general, multiple coordinate patches are needed to cover a surface.
Surfaces find application in physics, engineering, computer graphics, and many other disciplines, primarily when they represent the surfaces of physical objects. For example, in analyzing the aerodynamic properties of an airplane, the central consideration is the flow of air along its surface.
This text uses material from Wikipedia, licensed under CC BY-SA
