Seiffert's spiral is a mathematical curve that is defined as the locus of points that satisfy a particular relationship between parametric equations. It is similar in concept to other spirals, such as the Archimedean spiral and the logarithmic spiral, but it has its own unique properties.

As of my last update in October 2023, "Superegg" may refer to different things depending on the context. It could potentially relate to various sectors such as technology, gaming, education, or product branding. For example, in the tech industry, it might be a name for a startup, app, or innovative product. In gaming, it might represent a specific game, character, or feature.

The small stellated 120-cell, also known as the stellated 120-cell or the small stellated hyperdiamond, is a specific type of honeycomb in four-dimensional space, classified among the convex regular 4-polytopes. It is a part of the family of 4-dimensional polytopes known as honeycombs, which are tessellations of four-dimensional space.

A toric section refers to a curve obtained by intersecting a torus (the surface shaped like a doughnut) with a plane. The intersection can produce different types of curves depending on how the plane intersects the torus. The possible outcomes include: 1. **Circle**: If the plane intersects the torus parallel to its axis of rotation. 2. **Ellipse**: If the plane intersects the torus at an angle but does not pass through the central hole of the torus.

As of my last knowledge update in October 2021, there is no widely recognized information regarding an individual or entity named "Derek Keir." It’s possible that this name might refer to a private individual, a less-known public figure, or a fictional character. It could also be a name that gained prominence after my last update.

Lisa Tauxe is a prominent American geophysicist known for her research in the fields of paleomagnetism and geomagnetism. She is recognized for her work on the Earth's magnetic field and its changes over geological time, as well as for her contributions to understanding the relationship between the magnetic field and plate tectonics. Tauxe has published numerous scientific papers and has been involved in educational outreach in geosciences. She has also served in various leadership roles within scientific communities.

Ernst von Rebeur-Paschwitz (1850–1925) was a German engineer and inventor, notable for his contributions to the field of wireless communication, particularly in the context of radio technology. He is sometimes credited with early experiments in radiotelegraphy, which laid the groundwork for future developments in wireless communication. Rebeur-Paschwitz is especially known for demonstrating the principles of transmitting messages without wires, utilizing electromagnetic waves.

The Axiom of Non-Choice is a formulation in set theory that asserts the existence of certain sets without the necessity of the Axiom of Choice. More specifically, it can be understood within the broader context of set theory and its alternatives to the Axiom of Choice (AC). The Axiom of Choice asserts that given any collection of non-empty sets, it is possible to select an element from each set, even if there is no explicit rule for making the selection.

The Kolsky models are theoretical frameworks used to describe wave propagation in materials, particularly focusing on the phenomena of attenuation and dispersion. These models stem from work done by A. Kolsky in the mid-20th century and are typically applied in material science, geophysics, and engineering disciplines. Here’s a brief overview of both the basic and modified Kolsky models: ### Kolsky Basic Model 1.

Takeshi Nagata could refer to various individuals, but one prominent figure with that name is a well-known Japanese artist or academic. Without more specific context, it’s hard to pinpoint exactly which Takeshi Nagata you are referring to. If you're looking for information on a specific Takeshi Nagata in a particular field (such as art, science, literature, etc.

In geophysics, **admittance** refers to a measure used to describe how a geological medium responds to an external stimulus, particularly in the context of seismic waves or electromagnetic fields. Admittance is often used in the study of the Earth's subsurface and can help in understanding the material properties and configurations within the Earth.

As of my last knowledge update in October 2023, there isn't a widely recognized concept or model specifically called "Azimi Q models" in the fields I'm familiar with. It’s possible that you may be referring to a concept or a model that is niche or has emerged recently.

Seismology is the scientific study of earthquakes and the propagation of elastic waves through the Earth or other planetary bodies. It encompasses the investigation of seismic waves produced by earthquakes, volcanic activity, and other sources, to better understand the Earth's internal structure, the processes that cause seismic activity, and the effects of earthquakes on the surface.

The core-mantle boundary (CMB) is the interface between the Earth's outer core and the overlying mantle. It is located at a depth of about 2,900 kilometers (approximately 1,800 miles) below the Earth's surface. This boundary marks a significant transition in the Earth's composition and physical state. The outer core is composed mainly of liquid iron and nickel, along with lighter elements, while the mantle is primarily made up of solid silicate minerals.

The Deep Earth Carbon Degassing Project (DECADE) is a scientific initiative aimed at understanding the processes and mechanisms involved in the degassing of carbon from the Earth's interior to the atmosphere. It focuses on quantifying and characterizing the sources of carbon dioxide (CO2) emissions from volcanic and tectonic activity, as well as from the Earth's crust.

The exhumation of Yagan's head refers to a significant event in Australian history involving the remains of Yagan, an Aboriginal man from the Noongar people in Western Australia. Yagan was known for his resistance against European colonization in the early 19th century. After he was killed in 1833, his head was severed and displayed as a form of trophy, a common practice at the time to symbolize domination over Indigenous people.

Forensic geophysics is a subfield of geophysics that applies geophysical methods and techniques to assist in legal investigations and forensic science. It involves the use of various geophysical tools and methodologies to detect, map, and analyze subsurface features, which may aid in criminal investigations, archaeological site analysis, or disaster response.

The history of geophysics is a rich and interdisciplinary field that combines principles from physics, geology, and other sciences to study the Earth’s physical properties and processes. Here’s a broad overview of key developments in the history of geophysics: ### Early Foundations - **Ancient Understanding**: The study of Earth's physical features dates back to ancient civilizations. Greeks like Aristotle and Ptolemy theorized about the Earth's structure and processes.

RINEX, which stands for Receiver Independent Exchange Format, is a standard data format used for the exchange of satellite navigation system data. It was developed to allow different types of GNSS (Global Navigation Satellite Systems) receivers to share data, ensuring compatibility and interoperability among various manufacturers and systems. The RINEX format is primarily used for storing observations and navigation messages from GNSS satellites, including GPS, GLONASS, Galileo, and BeiDou.