"Irish relativity theorists" typically refers to physicists or researchers from Ireland who have made contributions to the field of relativity, which includes both the special and general theories of relativity developed by Albert Einstein in the early 20th century. While there isn't a formal or specific group known by that name, several notable Irish scientists and mathematicians have worked in the fields related to theoretical physics and relativity.

Edmund Edward Fournier d'Albe was a notable figure in the fields of physics and astronomy. He was born in 1865 and passed away in 1933. D'Albe is often recognized for his work on various scientific topics, particularly in the study of celestial mechanics and the physics of motion. One of his notable contributions was related to the analysis and understanding of comets. He made several predictions regarding their trajectories and behaviors, which garnered attention in the scientific community at the time.

Irrational rotation refers to a concept in mathematics, particularly in the field of dynamical systems and geometry. It typically involves rotations by an angle that is an irrational multiple of \( \pi \), meaning that the rotation angle cannot be expressed as a simple fraction. ### Key aspects of irrational rotation: 1. **Continuous Rotation**: When an object (like a point on a circle or a plane) is rotated continuously by an irrational angle, it never returns to its original position.

Strontium-89 is a radioactive isotope of strontium, denoted as ^89Sr. It is produced as a byproduct of nuclear reactions and is characterized by its half-life of approximately 50.5 days. Strontium-89 decays by beta decay, emitting beta particles and gamma rays, which can be detected and measured.

Isaiah Berlin (1909–1997) was a British philosopher, historian of ideas, and political theorist known for his work on liberalism, pluralism, and the history of philosophy. His scholarship covered a wide range of topics, including the nature of freedom, the clash of values, and the moral implications of political choices.

ISO 31-4 is an international standard that was part of the ISO 31 series, which deals with physical quantities and units. Specifically, ISO 31-4 addresses the topic of "Thermodynamics". It provides definitions and recommendations for the units of measurement used in thermodynamics, such as temperature, heat, and energy.

Gaseous diffusion is the process by which gas molecules spread out or move from an area of higher concentration to an area of lower concentration. This movement occurs due to the random thermal motion of gas molecules and continues until there is a uniform distribution of the gas in a given volume. In more technical terms, gaseous diffusion can be described by Fick's laws of diffusion.

The Paducah Gaseous Diffusion Plant (PGDP) is a facility located in Paducah, Kentucky, that was primarily used for the enrichment of uranium for use in nuclear fuel. The plant was established in the early 1950s as part of the United States' efforts to enhance its nuclear capabilities during the Cold War. It was one of the few gaseous diffusion plants in the United States and operated by the U.S.

Fractionation of carbon isotopes in oxygenic photosynthesis refers to the differential uptake and incorporation of carbon isotopes (\(^{12}C\) and \(^{13}C\)) by photosynthetic organisms, primarily plants and cyanobacteria, during the process of converting carbon dioxide (CO2) into organic carbon compounds using sunlight.

The optical theorem is a fundamental concept in quantum mechanics and particularly in the field of scattering theory. It establishes a relationship between the total cross section of a scattering process and the forward scattering amplitude. In more detail, the optical theorem states that the imaginary part of the forward scattering amplitude (the amplitude for scattering at an angle of zero) is proportional to the total cross section for that scattering process.

Gold-198 (Au-198) is a radioactive isotope of gold. It has a mass number of 198, meaning it contains 118 neutrons and 79 protons in its nucleus. Au-198 is primarily produced through the neutron activation of gold-197, which is the most stable and abundant isotope of gold. **Key Characteristics of Gold-198:** 1.

Iodine-123 (I-123) is a radioactive isotope of iodine that is commonly used in medical imaging and diagnostic procedures, particularly in the field of nuclear medicine. It has a half-life of approximately 13 hours, which makes it suitable for use in imaging studies because it decays quickly enough to reduce the patient's exposure to radiation while still allowing sufficient time for imaging procedures.

Nitrogen-15 tracing refers to a technique used in various fields, including biology, ecology, and environmental science, where the stable isotope nitrogen-15 (N-15) is tracked to study nitrogen cycling, plant nutrition, and ecosystem dynamics. Nitrogen-15 is a naturally occurring isotope of nitrogen, making up about 0.37% of all nitrogen in nature, while the more common isotope, nitrogen-14 (N-14), accounts for the majority.

As of my last knowledge update in October 2021, Alexander Furman is not a widely recognized figure in public discourse or history, and there may be limited information available about him. It's possible that he could be a private individual, an emerging professional in a specific field, or a figure who has gained prominence after my last update.

Arkadi Nemirovski is not a widely recognized public figure or entity as of my last knowledge update in October 2023. It is possible that he could be a private individual or someone who gained prominence after that date.

Shahar Mozes is an academic known for his work in the fields of computer science and theoretical computer science. He has made significant contributions to areas such as algorithms, data structures, and parallel computing. His research often focuses on concepts related to computation, complexity, and optimization.

Rami Grossberg is a mathematician known for his work in the field of topology and geometry, particularly in relation to spatial structures and their properties. He is noted for his contributions to mathematical research and education.

Ofer Zeitouni is likely a reference to a prominent figure or researcher, but without additional context, it's difficult to provide specific information. It could refer to someone in academia, technology, or another field.

Sdot Micha Airbase, also known as Makhavia Sdot Micha, is a military airbase located in Israel. It is primarily used by the Israeli Air Force (IAF) and is situated in the central part of the country, near the city of Rehovot. The airbase is named after the nearby moshav (agricultural community) of Sdot Micha.

Stephen Gelbart is a prominent mathematician known for his contributions in the fields of representation theory, algebraic geometry, and mathematical physics. His research often focuses on interactions between these areas, particularly in the context of the theory of automorphic forms and their applications.