A pseudolite is a type of device used in navigation and positioning systems that mimics the signals of a satellite. The term combines "pseudo" (meaning false or imitation) and "lite" (short for satellite). Pseudolites are often employed in areas where satellite signals may be weak or obstructed, such as in urban canyons, mountainous regions, or indoors.

Francis Allotey was a prominent Ghanaian physicist and academic, renowned for his contributions to theoretical physics and mathematics. He was especially known for his work in the field of soft matter physics and for his development of the Allotey formalism, which is related to quantum mechanics and molecular scattering. Born on November 9, 1933, in Ghana, Allotey had a distinguished academic career, holding various positions at several educational institutions.

Ana Fernández Militino is a Spanish mathematician known for her work in statistics, particularly in the areas of statistical inference and statistical modeling. She has contributed to the field through research, teaching, and publications.

Bernhard Riemann was a German mathematician born on September 17, 1826, and he died on July 20, 1866. He made significant contributions to various fields of mathematics, including analysis, differential geometry, and number theory.

Otfried Nassauer is a prominent German expert in the field of non-proliferation and disarmament, particularly focused on nuclear weapons and their implications for global security. He is known for his work as the director of the Institute for Peace Research and Security Policy at the University of Hamburg, where he has contributed to policy discussions and research related to nuclear arms control and disarmament efforts.

German geophysicists are scientists from Germany who specialize in the study of the Earth's physical properties and processes, including its magnetic, gravitational, electric, and seismic characteristics. Geophysicists employ various methods and technologies to analyze the Earth's structure, dynamics, and the various phenomena occurring within the planet, such as earthquakes, volcanic activity, and the movement of tectonic plates.

Cornelia Denz is a prominent figure in the field of optics and photonics. She is known for her research in areas such as laser technology, optical metrology, and the development of advanced imaging techniques. Denz has contributed significantly to the understanding of nonlinear optics and the use of optical systems for various applications. In addition to her research work, she is also recognized for her role in education and mentoring in the field of physics and engineering.

Christine Bessenrodt is a mathematician known for her work in combinatorial mathematics, particularly in the area of combinatorial enumeration and algebra.

Petra Schwille is a prominent biophysicist known for her research in the field of cell biology and biophysics. She is particularly recognized for her work on the mechanisms of cell division and the properties of biological membranes. Schwille has contributed significantly to understanding how cells maintain their structures and functions, often using advanced techniques such as single-molecule microscopy to study the dynamics of biological processes at the molecular level.

Fritz Borgnis (born 1899, date of death unknown) was a notable figure in the field of music, specifically recognized for his contributions as a pianist and composer. His work encompassed various genres and styles, showcasing his versatility and musical talent. He may also be connected to certain educational endeavors or artistic collaborations throughout his career.

Roland Busch is a prominent figure best known as the President and Chief Executive Officer of Siemens AG, a major global technology company based in Germany. He has been with Siemens for many years, serving in various leadership roles across different divisions of the company. Busch took over as CEO in February 2021, succeeding Joe Kaeser. Under his leadership, Siemens has focused on areas such as digitalization, automation, and sustainability, aiming to drive innovation and efficiency in various industries.

The Earth-centered, Earth-fixed (ECEF) coordinate system is a three-dimensional Cartesian coordinate system that is fixed relative to the Earth. In this system, the origin is located at the Earth's center of mass, and the axes are aligned in a specific way to account for the Earth's rotation and shape.

Math rock is a subgenre of rock music that emphasizes complex rhythms, unconventional song structures, and intricate melodies. Here are some notable math rock albums by American artists: 1. **"Math Rock" by Don Caballero** (1993) - Often cited as a seminal album in the genre, it features intricate guitar work and complex time signatures.

"Glass types" typically refers to the various categories or classifications of glass based on their composition, properties, and intended use. Here are some common types of glass: 1. **Soda-Lime Glass**: The most common type of glass, used for bottles, jars, and windows. It's made from silica, soda (sodium carbonate), and lime (calcium oxide).

Oxycarbide glass is a type of advanced glass material that incorporates both oxygen and carbon components within its structure. This novel form of glass is characterized by its unique optical, thermal, and mechanical properties, which differentiate it from traditional glass. The incorporation of carbon usually takes the form of carbon nanoparticles or similar structures, which can enhance the glass's optical properties, potentially resulting in improved clarity or coloration.

Flashed glass is a type of glass that has been created by applying a thin layer of colored glass to a base of clear or differently colored glass. This technique allows for the creation of intricate designs and patterns, as well as a depth of color that can enhance the visual appeal of the final product. The process typically involves melting together multiple layers of glass at high temperatures.

Glass flakes are composite materials made from thin, flat pieces of glass that have been processed to create a lightweight and durable filler or reinforcement. These flakes can be derived from various sources, including recycled glass, and are commonly used in various applications due to their unique properties. **Key characteristics and uses of glass flakes include:** 1. **Reinforcement:** They are often added to resins, plastics, and coatings to enhance mechanical properties such as strength, stiffness, and heat resistance.

Solarized architectural glass refers to a type of glass used in building design and construction that incorporates solar control features, typically to manage heat gain and glare from sunlight. This glass is often treated or coated with special materials to enhance its performance in terms of energy efficiency and comfort within indoor environments. Key features of Solarized architectural glass include: 1. **Solar Control:** It minimizes the amount of solar radiation that enters a building, helping to maintain a comfortable indoor temperature and reducing reliance on air conditioning.

Quadruple glazing refers to a type of window construction that consists of four layers of glass panes rather than the more common single, double, or triple glazing. The primary purpose of quadruple glazing is to improve thermal insulation and energy efficiency, further reducing heat loss from buildings. This can be particularly beneficial in extremely cold climates where maintaining warmth indoors is crucial.

Glenn T. Seaborg was a prominent American chemist known for his work on the actinide series and for his role in the discovery of several elements, including plutonium, americium, and curium. He also played a significant role in the development of nuclear chemistry and policy.