Jorge Sahade is an Argentine astrophysicist known for his contributions to the field of astronomy, particularly in the study of stars and stellar systems. He has held various academic and research positions throughout his career, including roles at universities and research institutions in Argentina and beyond. Sahade is also recognized for his work in promoting science education and outreach in Argentina.

Leo Goldberg could refer to several different individuals or concepts, depending on the context. One prominent figure by that name is Leo Goldberg (1913-2006), an influential American astronomer known for his work in the field of astrophysics, particularly in stellar evolution and the development of modern stellar classification systems.

Lodewijk Woltjer is a Dutch astronomer known for his contributions to the field of astrophysics, particularly in the areas of galaxy formation and evolution. He has held various academic and administrative positions, including serving as the director of the European Southern Observatory (ESO). Woltjer has played a significant role in advancing astronomical research and has been involved in numerous projects related to observational astronomy.

Benjamin Baillaud was a French astronomer, born on February 19, 1825, and he passed away on November 23, 1896. He is best known for his work in the field of astronomy and his contributions as a scientific administrator. Baillaud served as the director of the Paris-Meudon Observatory and was involved in various astronomical projects during his career. He made significant contributions to the study of celestial mechanics and worked on the construction of instruments for astronomical observation.

Bertil Lindblad is a notable figure in the field of astronomy, particularly known for his work in celestial mechanics and orbital dynamics. He made significant contributions to our understanding of the motion of celestial bodies. One of his key contributions is in the formulation of the "Lindblad Resonances," which describe how the gravitational influence of a rotating disk of material can affect the orbits of stars and other objects within it.

Ewine van Dishoeck is a prominent Dutch astrophysicist known for her research in the field of astrochemistry and the study of the physical and chemical processes in space, particularly in relation to the formation of stars and planetary systems. She has made significant contributions to understanding the molecular processes in interstellar clouds, the chemistry of star-forming regions, and the conditions that lead to the formation of complex molecules in space.

An equation is a mathematical statement that asserts the equality of two expressions. It consists of two sides separated by an equal sign (=). Each side of the equation can contain numbers, variables (which represent unknown values), and mathematical operations such as addition, subtraction, multiplication, and division. For example, the equation \(2x + 3 = 7\) asserts that the expression \(2x + 3\) is equal to \(7\).

Franco Pacini is a prominent Italian physicist known for his contributions to the field of astrophysics. He has made significant advancements in understanding various aspects of stellar dynamics, pulsars, and cosmic phenomena. His research often involves theoretical models and observational data to explore the behavior of celestial bodies.

Jan Oort (1900-1992) was a Dutch astronomer best known for his significant contributions to the field of astrophysics and for his research on the structure and dynamics of our galaxy, the Milky Way. He is particularly renowned for proposing the existence of a spherical halo of dark matter surrounding the Milky Way, which has had a lasting impact on our understanding of galactic dynamics.

AS/NZS 1200 is a standard that covers the design and construction of pressure vessels in Australia and New Zealand. It provides guidelines for the safe design, fabrication, inspection, and testing of pressure vessels to ensure they operate safely and effectively. The standard outlines various requirements for materials, welding, and structural integrity, aiming to minimize the risks associated with pressure vessels, which can include explosions or leaks if not properly designed or maintained.

Planar SAT (Satisfiability) is a particular case of the Boolean satisfiability problem (SAT) that involves deciding whether a given Boolean formula can be satisfied under the constraint that the variable or clause interactions can be represented in a planar graph. In general, the classic SAT problem asks whether there exists an assignment of truth values to Boolean variables such that a given formula is true. This can be represented as a graph where nodes represent variables and edges depict the relationships dictated by the clauses.

"Pol Swings" does not appear to be a widely recognized term or concept as of my last update in October 2021. It could possibly refer to a specific individual's name, a niche topic, or a newly developed concept that emerged after my last knowledge update.

Silvia Torres-Peimbert is a prominent Mexican astrophysicist known for her contributions to the study of planetary nebulae and stellar evolution. She has held significant academic positions, including serving as a professor and researcher at the National Autonomous University of Mexico (UNAM). Torres-Peimbert is recognized for her work in promoting science education and encouraging the participation of women in the sciences.

William Wallace Campbell (1862–1938) was an American astronomer known for his significant contributions to the field of astrophysics. He was the director of the Lick Observatory in California and played a crucial role in the development of astrophysical research during the early 20th century. Campbell is particularly noted for his work on stellar spectroscopy, where he focused on the analysis of light from stars to gain insights into their composition and properties.

Jerome Karle was an American chemist who was awarded the Nobel Prize in Chemistry in 1985 along with his wife, Isabella Karle, for their work in the field of crystallography. They developed methods for determining the three-dimensional structures of molecules using X-ray diffraction, which has important applications in various scientific fields, including chemistry, biology, and materials science.

A boiler is a closed vessel in which water or another fluid is heated. The heated fluid is then used for various purposes, such as generating steam for power generation, heating buildings, or supplying hot water for various industrial processes. **Key components and concepts related to boilers include:** 1. **Types of Boilers**: - **Fire-tube Boilers**: Hot gases from combustion pass through tubes that are surrounded by water.

Active fuel length usually refers to the portion of a nuclear reactor's fuel that is actively participating in the fission process. In a nuclear reactor, fuel rods contain nuclear fuel (typically enriched uranium or plutonium), and the length of the fuel that is effectively contributing to the chain reactions can be critical for determining the reactor's performance and efficiency. The concept is essential in the design and operation of reactors, as it affects factors like the reactor's power output, neutron economy, and overall lifecycle.

The American Standard Safety System (ASSYST) is a safety management protocol used primarily within the context of healthcare and organizations where patient safety and quality of care are paramount. It emphasizes a structured approach to identifying, assessing, and mitigating safety risks to protect patients, staff, and visitors.

PD 5500 is a British Standard that provides guidelines and requirements for the design and construction of pressure vessels and heat exchangers made from metallic materials. It covers various aspects of pressure vessel design, including material selection, design methods, fabrication, inspection, and testing to ensure safety and reliability in their operation. The standard is widely used in industries such as chemical processing, oil and gas, power generation, and many others where equipment must safely withstand high pressures and temperatures.

The term "bulging factor" can refer to different concepts depending on the context, particularly in engineering, fluid dynamics, and structural analysis. Here are a couple of interpretations: 1. **Structural Engineering**: In the context of structural engineering, particularly when dealing with materials that deform under load, the bulging factor might refer to a measure of how much a structure or component bulges when subjected to pressure or other loads.