Cosmic crystallography is a field of study that combines concepts from crystallography—the science of studying the arrangement of atoms within crystalline solids—with cosmology, the branch of astronomy that deals with the origins and development of the universe. While the term may not be widely recognized in traditional scientific literature, it can refer to the examination of the crystalline structures that can exist in various cosmic environments, such as in stars, meteoroids, comets, and on planetary bodies.

The DEEP2 Redshift Survey is an astronomical survey aimed at studying the formation and evolution of galaxies in the universe. Conducted using the Keck Observatory in Hawaii, this survey focuses on obtaining redshifts for a large sample of galaxies to provide insights into their distances, motions, and properties across a significant portion of cosmic time.

Dipole anisotropy typically refers to a directional dependence in a physical quantity, often observed in the context of cosmic phenomena or fields. In cosmology, for example, dipole anisotropy is often discussed in relation to the Cosmic Microwave Background (CMB) radiation. In this context, the CMB is the afterglow of the Big Bang, and while it is generally uniform, it does exhibit slight variations in temperature that can be analyzed.

In the context of astronomy, "dropout" typically refers to a type of galaxy that is not observed in certain wavelengths of light, particularly in the ultraviolet or optical bands, but is detected in longer wavelengths such as infrared. This phenomenon is often indicative of high-redshift galaxies, which are many billions of light-years away and play a crucial role in our understanding of the early universe. The term "dropout" is most commonly used in the context of surveys designed to find and study such galaxies.

The Ehlers–Geren–Sachs theorem is a result in general relativity that addresses the behavior of gravitational fields and the geometry of spacetime around certain kinds of distributions of matter. Specifically, it relates to the nature of gravitational waves and the properties of the spacetime in the presence of gravitational radiation. The theorem states that under suitable conditions, if a gravitational wave is present in a vacuum region of spacetime, then the geometry of the spacetime exhibits specific features.

The Fischler-Susskind mechanism, proposed by Steven Fischler and Leonard Susskind in the early 1980s, is a theoretical framework within string theory that aims to address the problem of generating mass for gauge bosons, which are the force carriers of fundamental interactions, particularly in the context of particle physics.

Himiko is a Lyman-alpha blob, which is a type of astronomical object characterized by an extended region of hydrogen gas that emits Lyman-alpha radiation. These blobs are typically found at high redshifts, indicating that they are situated at significant distances from Earth and are observed as they were in the early universe. Himiko itself is noteworthy because it is one of the largest and most luminous Lyman-alpha blobs discovered to date.

Baroclinic instability is a phenomenon in ocean and atmospheric dynamics that occurs due to the interaction between density variations and the shear of velocity in different layers of fluid. In the ocean, baroclinic conditions exist when there is a vertical density gradient, typically due to temperature (thermocline) and salinity (halocline) differences. This gradient causes the density of seawater to vary with depth, leading to differing pressure fields at different depths.

Particle physics in cosmology is the study of the fundamental particles and forces that govern the universe at its most basic level, particularly in the context of its large-scale structure, evolution, and fundamental properties. It combines principles from both particle physics and cosmology to explore how elementary particles, such as quarks, leptons, and gauge bosons, contribute to the makeup of the universe and its dynamic behavior.

The Primordial Isocurvature Baryon model is a theoretical framework in cosmology that deals with the various types of fluctuations present in the early universe. To understand this model, it's essential to break down a few key concepts. ### Key Concepts: 1. **Cosmic Microwave Background (CMB)**: This is the afterglow radiation from the Big Bang, which provides a snapshot of the early universe.

The Quintom scenario is a concept that originates from the field of cosmology and theoretical physics, particularly in relation to dark energy and the acceleration of the universe's expansion. It describes a hypothetical model for the universe's evolution involving different phases of cosmic expansion. In the Quintom scenario, the universe is thought to transition between different states of dark energy.

The Ursa Major Filament is a vast cosmic structure in the universe consisting of a group of galaxies and galaxy clusters that are connected by gravitational forces and dark matter. This filament is part of the larger cosmic web, which is the large-scale structure of the universe. The filament gets its name from its location in the sky near the Ursa Major constellation. Cosmic filaments are critically important for cosmology, as they provide insights into the formation of galaxies and the distribution of matter in the universe.

As of my last update in October 2021, Vorton is not a widely recognized term in any particular field. However, it might refer to a specific company, technology, or product that emerged or gained prominence after that date.

Coastal and oceanic landforms refer to the various natural structures and features found at the interface between land and ocean, as well as within oceanic environments. Below is a brief overview of both categories: ### Coastal Landforms: These landforms are shaped by the interactions between land and sea, including processes like erosion, deposition, and wave action.

"Marine geography stubs" typically refers to short or incomplete articles on marine geography topics within a collaborative platform like Wikipedia. Stubs are articles that provide limited information and are often marked as such, indicating that they need expansion and additional content to cover the topic more comprehensively. Marine geography itself is a subfield of geography that focuses on the study of marine environments, including oceans, seas, and coastal areas.

Ocean currents are large-scale movements of seawater that flow through the world's oceans. These currents are driven by a combination of factors, including wind patterns, the Earth's rotation (the Coriolis effect), temperature differences, salinity variations, and the shape of coastlines and ocean basins. There are two main types of ocean currents: 1. **Surface Currents**: These currents occur in the upper layer of the ocean and are primarily driven by wind.

Oceanic gyres are large systemsof circulating ocean currents formed by the combined effects of wind, the Coriolis effect, and the continents. These gyres play a significant role in regulating the Earth's climate, ocean circulation, and marine ecosystems. There are five major oceanic gyres in the world: 1. **North Atlantic Gyre**: Located in the North Atlantic Ocean, it includes the Gulf Stream, the North Atlantic Current, the Canary Current, and the North Equatorial Current.

Physical oceanographers are scientists who study the physical characteristics and processes of the ocean. This field of oceanography focuses on various aspects, such as ocean currents, wave dynamics, temperature and salinity distributions, density stratification, and the interaction between the ocean and the atmosphere.

Water masses are large volumes of ocean water that have distinct characteristics, such as temperature, salinity, and density, which differentiate them from surrounding water. These characteristics are shaped by their formation processes, which include mixing, evaporation, precipitation, and interactions with the atmosphere and ice. Water masses are important in oceanography and climatology because they influence global circulation patterns, climate, and marine ecosystems.

Water waves are disturbances that travel through water, caused by the transfer of energy through the medium. They occur when energy is applied to water, leading to the oscillation of water molecules at the surface of the body of water. There are two primary types of water waves: 1. **Capillary Waves**: These are small waves that occur when the water surface is disturbed, typically at a scale of a few centimeters or less.