In mathematical optimization and differential geometry, the **tangent cone** at a point \( x_0 \) of a set \( C \) is a concept that describes the directions in which one can move from that point while remaining within the set. It is particularly useful in the study of convex analysis, nonsmooth analysis, and variational analysis.
Archeops is a dual-type Rock/Flying Pokémon introduced in Generation V of the Pokémon series. It is known as the "Archeops" Pokémon and is classified as the Fossil Pokémon. Evolving from Archen when it is revived from the Plume Fossil, Archeops is characterized by its bird-like appearance, featuring a crest on its head and vibrant plumage.
The Cosmic Background Explorer (COBE) was a satellite launched by NASA on November 18, 1989, and designed to study the cosmic microwave background radiation (CMBR) of the universe. The primary goals of COBE were to measure the CMBR's temperature and to explore the structure and anisotropies (small variations in temperature) within it.
The Tenerife Experiment, also known as the Tenerife Project, refers to a scientific study conducted in the 1980s and 1990s on the Canary Island of Tenerife. It focused on the effects of various observational and experimental interventions in urban settings, particularly in relation to schooling and educational systems. The project aimed to investigate how different educational strategies and contexts affect students' learning outcomes, behavior, and overall development.
The Akeno Giant Air Shower Array (AGASA) is a cosmic ray detector located near Akeno, Japan. It was built to study ultra-high-energy cosmic rays, which are high-energy particles from space that can reach the Earth's atmosphere. The array consists of a large number of detectors spread over a wide area and is designed to detect air showers—cascades of secondary particles that are produced when high-energy cosmic rays interact with the Earth's atmosphere.
GRAPES-3 (General Purpose Research Array for Neutrino Astrophysics and Particle Physics Experiment) is a scientific experiment and research facility primarily located in India, designed for the study of cosmic rays and neutrinos. It represents a significant advancement in astroparticle physics, aiming to understand high-energy processes in the universe, including those occurring in supernovae, black holes, and other cosmic phenomena.
The IceCube Neutrino Observatory is a large-scale scientific facility located at the South Pole, designed to detect neutrinos—extremely elusive and nearly massless subatomic particles. It is the world's largest neutrino detector, comprising a cubic kilometer of ice buried beneath the Antarctic ice sheet.
The Milagro experiment, short for "Millennium Ray Observation," is an observatory dedicated to the study of cosmic rays and high-energy astrophysical phenomena. Located at the Los Alamos National Laboratory in New Mexico, it was known for detecting high-energy gamma rays and cosmic rays from various sources in the universe, such as supernova remnants, active galactic nuclei, and other high-energy astrophysical objects.
Petra Kelly (1947–1992) was a prominent German political activist and a co-founder of the German Green Party (Die Grünen), an important figure in the environmental and peace movements in Germany and Europe. She was known for her advocacy of non-violence, feminism, and ecological sustainability, and she played a significant role in shaping ecological politics in Germany during the late 20th century.
Gerd Ulrich Nienhaus is known primarily for his contributions to the field of optics and photonics. He has worked extensively in areas related to laser technology and nonlinear optics and has been associated with various academic and research institutions.
The AN-11 bomb, also known as the FAB-500, is a Russian-made general-purpose bomb that comes in various configurations and is used primarily by aircraft. The bomb is designed for use against a wide range of targets, including military installations, armored vehicles, and infrastructure. The AN-11 typically features a high-explosive warhead and can be deployed from various aircraft platforms.
Enrico Giusti is an Italian mathematician known for his contributions to the fields of geometric measure theory, calculus of variations, and partial differential equations. He has published numerous research papers and is recognized for his work on problems related to minimal surfaces and the geometric analysis of different mathematical models. Giusti is also noted for his influence in academic circles, where he has been involved in teaching and mentoring students in advanced mathematical topics.
The Degree Angular Scale Interferometer (DASI) is an astronomical instrument designed to measure the temperature fluctuations of the Cosmic Microwave Background (CMB) radiation. Specifically, it focuses on mapping the anisotropies in the CMB across a significant portion of the sky, which provides valuable insights into the early universe, cosmology, and the large-scale structure of the universe.
The Cosmic Microwave Background (CMB) is a relic radiation from the early Universe, providing vital information about cosmology, the formation of structures in the universe, and the laws of physics in extreme conditions. Various experiments and missions have been conducted over the years to study the CMB. Here’s a list of notable CMB experiments: ### Ground-Based Experiments 1.
POLARBEAR (Polarization Observing Realizaion for Cosmology, Astrophysics, and Relativity) is a scientific experiment designed to study the cosmic microwave background (CMB) radiation, particularly its polarization. The CMB is a remnant from the Big Bang and carries crucial information about the early universe's conditions, structure, and evolution.
QUaD, which stands for Quadrilateral Security Dialogue, is a strategic forum that involves four countries: the United States, Japan, India, and Australia. The dialogue aims to promote cooperation on regional security issues, economic challenges, and other mutual interests in the Indo-Pacific region. The QUaD initiative was initially established in 2007 but fell into relative inactivity for several years.
A cosmic-ray observatory is a facility designed to detect and study cosmic rays, which are high-energy particles originating from outer space. These particles primarily consist of protons, atomic nuclei, and high-energy electrons, and they can arrive at Earth from various sources, including supernovae, active galactic nuclei, and even our Sun. Cosmic-ray observatories employ a variety of detection techniques and technologies to observe these particles.
"GAMMA" can refer to different concepts depending on the context in which it's used. Here are some common meanings: 1. **Gamma (Γ, γ)**: In the Greek alphabet, it is the third letter. It is often used in various academic and scientific contexts. 2. **Gamma Rays**: A form of high-energy electromagnetic radiation, gamma rays are emitted by radioactive materials and are used in fields such as astronomy, nuclear medicine, and radiation therapy.
In the context of Wikipedia and other similar platforms, a "stub" is a minimal article that lacks sufficient detail and information to be considered a complete entry on its subject. Specifically, a "German mathematician stub" would refer to short articles about mathematicians from Germany that require expansion or additional information. Stubs typically have a template or notice at the top of the article indicating that they are stubs and encouraging contributors to add more content.
Delaware Bank refers to financial institutions based in the state of Delaware, which is well-known for being a hub for banking and corporate services due to its favorable regulations and tax laws. There is no single entity called "Delaware Bank"; rather, the term could refer to various banks operating in Delaware, including local community banks or larger national banks with a presence in the state.