Minkowski space is a mathematical structure that combines the three dimensions of space with the dimension of time into a four-dimensional manifold. It is a fundamental concept in the field of special relativity, formulated by the mathematician Hermann Minkowski in 1907. In Minkowski space, the geometry is governed by the Minkowski metric, which differs from the familiar Euclidean metric used in classical three-dimensional space.

Spherically symmetric spacetime is a type of solution to the equations of general relativity that describes a gravitational field resulting from a mass distribution that is symmetric in all directions around a central point.

Tsirege is a traditional dish from the Tuareg people, who are nomadic Berber tribes predominantly found in regions of North Africa, including parts of Niger, Mali, Libya, and Algeria. The dish often consists of grilled meat, commonly mutton or goat, which is seasoned with various spices, and typically served with flatbread. Tsirege is often accompanied by a sauce or condiment and can feature a variety of other ingredients depending on regional variations.

Kerosene, also known as paraffin oil, is a flammable hydrocarbon liquid derived from petroleum. It is primarily used as a fuel for jet engines, heating, and lamps. Kerosene is made up of a mixture of hydrocarbons, principally alkanes, cycloalkanes, and aromatic hydrocarbons, and it typically has a boiling point range of about 150 to 300 degrees Celsius (302 to 572 degrees Fahrenheit).

A metal deactivator is a type of chemical additive that is used to inhibit or neutralize the catalytic effect of trace metal ions (such as copper, iron, and manganese) in various industrial processes, particularly in lubricants, fuels, and polymer production. These metals can accelerate oxidative degradation, leading to reduced performance, shortened lifespan, and formation of unwanted byproducts.

"Pipe dope" refers to a type of lubricant or sealant used on the threaded joints of pipes, particularly in plumbing, oil, and gas applications. Its primary purpose is to create a seal that prevents leaks at the joints while also providing lubrication to facilitate easier assembly of threaded connections. Pipe dope can come in various formulations, including pastes, liquids, and compounds, and it may be designed for specific types of materials, such as metal or plastic pipes.

Shell Rotella is a brand of heavy-duty engine oils and lubricants produced by Shell, a global energy and petrochemical company. Rotella products are specifically formulated for diesel engines, including those used in trucks, buses, and construction equipment, but they also cater to gasoline engines and other vehicles. The product line includes various types of motor oils, including conventional, synthetic blend, and fully synthetic formulations.

"MacGyver" is a popular television series that originally aired from 1985 to 1992 and was later rebooted in 2016. The show follows the main character, Angus MacGyver, who is known for his resourcefulness and ability to solve problems using everyday materials and his scientific knowledge. Here’s a list of some of the notable characters from both the original and reboot series: ### Original Series (1985-1992) 1.

Reiko Sakamoto is a distinguished Japanese mathematician known for her contributions to the field of mathematics, particularly in the areas of arithmetic geometry and algebraic geometry. She has worked extensively on topics related to number theory and algebraic structures. In addition to her research, Sakamoto has been involved in various academic roles, contributing to the education and advancement of mathematics in Japan and internationally.

Robert Willis is a notable figure in the field of engineering, particularly recognized for his work related to structural engineering and the design of large and complex structures. He may be known for contributions to various architectural projects, research, or innovations within the discipline. However, details specific to a Robert Willis in engineering may vary, as there could be multiple individuals with that name in different areas of specialization.

Iccho Itoh is a Japanese artist and designer known for his work in various mediums, including painting, installations, and product design. He is associated with the contemporary art scene in Japan and has been recognized for his innovative approach to art and his ability to blend traditional techniques with modern aesthetics.

Senji Yamaguchi could refer to different things depending on the context. For example, it might refer to a person's name, particularly in a Japanese context, or it could relate to a location, event, or cultural reference in Japan.

Setsuko Thurlow is a Japanese-Canadian activist and survivor of the atomic bombing of Hiroshima during World War II. Born in 1932 in Hiroshima, she was just 13 years old when the atomic bomb was dropped on the city on August 6, 1945. Thurlow survived the blast and has since dedicated her life to raising awareness about the humanitarian consequences of nuclear weapons and advocating for nuclear disarmament.

Sumiteru Taniguchi was a Japanese advocate for peace and nuclear disarmament, known for his experiences as a survivor of the atomic bombing of Nagasaki during World War II. He was born on March 14, 1928, and was just 16 years old when the bomb was dropped on Nagasaki on August 9, 1945. Taniguchi suffered severe injuries from the blast, which left lasting physical and emotional scars.

Terumi Tanaka refers to a fictional character from the Japanese manga and anime series "KonoSuba: God's Blessing on This Wonderful World!" The character is not as widely recognized as the main cast, so specific details may vary based on different adaptations or interpretations within fan communities.

Japanese information theorists refer to scholars and researchers in Japan who specialize in the field of information theory, which is a mathematical framework for quantifying information, often used in telecommunications, computer science, and related fields. Information theory was founded by Claude Shannon in the mid-20th century, and it addresses concepts such as data compression, error correction, and the capacity of communication channels. In Japan, several distinguished researchers and institutions have contributed significantly to the development of information theory.

Japanese biophysicists are scientists in Japan who study the physical principles underlying biological processes. Biophysics is an interdisciplinary field that combines methods from physics and biology to understand how biological molecules, cells, and systems function. Japanese biophysicists might investigate areas such as molecular interactions, protein structure and function, cellular mechanics, neurobiophysics, and the physical principles of biological membranes, among other topics.

Japanese plasma physicists are researchers and scientists in Japan who specialize in the study of plasma, which is one of the four fundamental states of matter, alongside solid, liquid, and gas. Plasma consists of ionized gas in which a certain portion of the particles are charged ions and free electrons. Plasma physics is a broad field that includes various applications, from fusion energy research to space physics, astrophysics, and industrial applications.

The Presidents of the Physical Society of Japan (PSJ) refer to the individuals who have held the position of president of this organization, which is dedicated to the promotion and advancement of physics in Japan. The PSJ was established in 1946 and is one of the leading societies for physicists in Japan, serving as a platform for scientific exchange and collaboration among researchers in the field. The society organizes conferences, publishes research journals, and facilitates communication and collaboration among its members.

Hiromichi Kataura does not appear to be a widely recognized figure or term as of my last update in October 2023. It is possible that he could be a private individual, a character from a specific work of fiction, or involved in a niche subject not captured broadly in public knowledge.