André Petermann is not a widely recognized public figure as of my last knowledge update in October 2023. It's possible that he could be a private individual or a lesser-known person in fields such as academia, business, or arts.

Gian Michele Graf does not appear to be a widely recognized figure or concept as of my last update in October 2023. It is possible that he could be a private individual or a lesser-known personality in a specific field.

Martin Schadt is a Swiss physicist and engineer, best known for his contributions to the field of display technology, particularly liquid crystal displays (LCDs). He is notably recognized for his role in the invention of the first liquid crystal display (LCD) technology, which has since been widely used in various applications, including televisions, monitors, and handheld devices. Schadt's work laid the groundwork for the commercial development of LCDs, leading to their prevalent use in modern electronic devices.

A Dekatron is a type of gas discharge tube that functions as a digital counting device. It is part of a family of vacuum tubes and is particularly known for its capability to count from 0 to 10, hence the prefix "deka-" which means ten. Each Dekatron contains a low-pressure gas, typically neon or argon, and several electrodes. When a voltage is applied, the gas within the tube ionizes, and a glow discharge occurs.

Family symmetries refer to a concept in theoretical physics, particularly in the context of particle physics and the Standard Model. They involve the idea that certain symmetries can exist among different families or generations of particles. In the Standard Model, matter particles are classified into three generations, each containing particles such as quarks and leptons. Family symmetry suggests that these generations could be connected through some symmetry that goes beyond the conventional gauge symmetries that govern particle interactions.

The International Society for the Interdisciplinary Study of Symmetry (ISIS) is an organization dedicated to the study and promotion of symmetry in various fields, including mathematics, science, art, and philosophy. Founded to foster interdisciplinary research, the society encourages collaboration among scholars and practitioners from diverse backgrounds who share an interest in the concept of symmetry. ISIS organizes conferences, workshops, and seminars, providing a platform for members to share their research, ideas, and artworks related to symmetry.

Interactional linguistics is an interdisciplinary field that studies how language functions in social interactions. It combines insights from linguistics, sociology, conversation analysis, and discourse analysis to explore how people use language in real-time communication. The focus is often on the nuances of spoken interaction, including the ways in which language constructs social meaning, identity, and relationships among speakers.

Nihonium is a synthetic chemical element with the symbol Nh and atomic number 113. It is one of the superheavy elements in the periodic table and was first officially reported in 2004 by a team of Japanese scientists at the RIKEN institute. The name "Nihonium" is derived from "Nihon," which is one of the ways to say "Japan" in Japanese, reflecting the element's discovery in Japan.

Taqi ad-Din Muhammad ibn Ma'ruf, often referred to simply as Taqi ad-Din, was a prominent Arab astronomer, mathematician, and engineer during the 16th century. He was born in 1526 in Damascus in the Ottoman Empire (modern-day Syria). He is best known for his contributions to astronomy and for establishing the first observatory in the Islamic world, the Maragha Observatory, which played a pivotal role in the development of astronomical research.

Alternative set theories are various mathematical frameworks that diverge from the standard set theory, primarily Zermelo-Fraenkel set theory with the Axiom of Choice (ZFC). These theories often emerge to address certain philosophical issues, resolve paradoxes, or explore alternative concepts of mathematical objects. Here is a list of some notable alternative set theories: 1. **Constructive Set Theory**: This approach, which includes theories like Intuitionistic Set Theory, emphasizes constructions and computability.

Hartree atomic units, often simply referred to as atomic units (AU), are a system of natural units used primarily in quantum mechanics and atomic physics. They simplify equations by using fundamental constants to define the units of measurement. In Hartree atomic units, the quantities are scaled so that certain fundamental physical constants take on the value of 1.

A glossary of backup terms is a collection of definitions and explanations of key concepts, terminology, and jargon commonly used in the context of data backup and recovery. Understanding these terms can help individuals and organizations effectively manage their data and implement robust backup strategies. Below is a glossary of some important backup-related terms: ### A - **Archiving**: The process of moving data that is not regularly accessed to a separate storage location for long-term retention.

Flight envelope protection refers to various safety features and systems designed to ensure that an aircraft operates within its defined performance limits, often referred to as the "flight envelope." The flight envelope is the range of airspeed, altitude, and angle of attack (AoA) within which an aircraft can safely operate. Key aspects of flight envelope protection include: 1. **Overspeed Protection**: Prevents the aircraft from exceeding its maximum airspeed, which can lead to structural damage or loss of control.

Several computer companies were disestablished in 2022 due to various reasons, such as mergers, acquisitions, or business failures. Here are a few examples: 1. **Intel's NUC Group** - Intel announced it would discontinue its NUC (next unit of computing) business, which focused on compact PCs. 2. **Mellanox Technologies** - Although acquired earlier, the Mellanox brand was officially retired and absorbed into NVIDIA after its acquisition in 2020.

"Internet properties by year of disestablishment" refers to a classification of websites, platforms, or online services that were operational during a certain period and eventually ceased to exist. This can include social media platforms, content-sharing sites, forums, and other internet-based offerings that have been discontinued or shut down.