Korean mathematicians have made contributions throughout history, and their work can be explored across different centuries. Here's a brief overview of notable Korean mathematicians by century: ### 15th Century - **Jang Yeong-sil (1390-1450)**: While he is primarily known for his contributions to astronomy and technology, he also played a role in advancing mathematical techniques during the Joseon Dynasty.

Josip Pečarić is a mathematician known for his work in mathematical inequalities, functional analysis, and related areas. He has contributed significantly to the field through research papers and publications. Pečarić has also been involved in academic activities, including teaching and mentoring students in mathematics.

Topsy was a female African elephant who is famously known for her tragic story in the early 20th century. She was born around 1875 and spent a significant part of her life in captivity. Topsy was initially part of a circus and later moved to Coney Island in New York, where she was part of a zoo attraction. Topsy became infamous after a series of incidents that included her aggression towards humans, which ultimately led to her being deemed a danger.

Jana Zaumseil is a prominent figure in the field of computer science, particularly known for her work in programming languages, type systems, and educational technology. She has contributed to research on software development and tools that support learning and understanding of programming concepts.

As of my last knowledge update in October 2023, there is no widely recognized entity or concept specifically known as "Tariq Mustafa." It's possible that it could refer to a person, perhaps someone notable in a specific field, or a subject that gained relevance after my last update.

FSUE Atomflot, or Federal State Unitary Enterprise Atomflot, is a Russian state-owned enterprise that operates the country's fleet of nuclear-powered icebreakers. It is part of the Rosatom State Atomic Energy Corporation, which oversees Russia's nuclear activities, including nuclear power generation and construction, as well as the development and management of nuclear icebreakers.

Mount Lazarev is a mountain located in Antarctica, specifically within the eastern part of the continent. It is situated in the Prince Charles Mountains, which are part of the larger Mac Robertson Land region. Mount Lazarev is notable for its elevation and prominent position in the area. Geographically, the mountain is an important landmark for scientific research and exploration in Antarctica.

Brazil is a small village located in the Northern Cape province of South Africa. It is situated near the town of Kuruman, which is known for its rich history and proximity to significant landmarks, including the Kalahari Desert and the nearby Wonderwerk Cave. The Northern Cape is the largest province in South Africa and is known for its diverse landscapes, including semi-deserts, mountains, and rivers. The village of Brazil may not be widely recognized, and detailed information about it can be limited.

The List of United States Naval reactors includes various nuclear reactors that have been developed and used by the U.S. Navy to power submarines and aircraft carriers. These reactors are key components of naval propulsion systems, providing the capability for long-duration missions without the need for refueling. Here are some notable classes of reactors used by the U.S.

The S2W reactor is a type of advanced nuclear reactor design developed by the South Korean company Korea Hydro & Nuclear Power (KHNP). The acronym "S2W" stands for "System 2 Water," and it is part of the evolution of pressurized water reactors (PWRs). The S2W reactor aims to enhance safety, efficiency, and sustainability in nuclear energy production.

The S6W reactor is a type of naval nuclear reactor developed for the United States Navy. It is specifically designed for use in the Virginia-class submarines, which are among the latest classes of fast attack submarines in the U.S. fleet.

The S8G reactor is a type of naval nuclear reactor developed by the United States for use in submarines. It is associated with the U.S. Navy's submarine fleet, particularly the Los Angeles-class submarines. The "S" indicates it's a submarine reactor, while "8G" stands for "8th Generation," referring to its design evolution.

The GBAR experiment, which stands for "Gravitational Behaviour of Antihydrogen at Rest," is an experiment designed to investigate the behavior of antimatter, specifically antihydrogen, in the presence of gravity. It aims to test fundamental symmetries in physics, including the equivalence principle, which states that gravitational mass and inertial mass are equivalent for all forms of matter and antimatter.

Durham University Department of Physics is a part of Durham University, located in Durham, England. Established in 1832, Durham University is one of the oldest and most prestigious universities in the UK. The Department of Physics offers a wide range of undergraduate and postgraduate programs, covering various areas of physics, including theoretical physics, astrophysics, condensed matter, and particle physics.

Jerry G. Fossum is primarily recognized for his work in the field of amateur radio and electrical engineering. He has made significant contributions to the development and design of various electronic communication systems, focusing on improving amateur radio technology and fostering communication among hobbyists. Fossum is also known for his publications and articles that provide insights into radio wave propagation, antenna design, and other relevant topics.

Katherine Jungjohann is not a widely recognized public figure, so specific information about her may not be readily available in public domains. If she has gained prominence or relevance in a particular context (such as business, academia, or another field) after my last update in October 2021, I might not have information on her.

Mark Horstemeyer may refer to a specific individual, but without additional context, it's difficult to provide precise information. The name is associated with various professionals in different fields, including academia, engineering, and research.

Robert C. Prim is not widely recognized in popular culture, science, or history, so it's possible you might be referring to a specific individual within a niche context or a regional reference. If you have more context or details regarding the person or field in which they are involved, I can provide more focused information.

Scott Sagan is an American political scientist and a prominent scholar in the field of international relations, particularly known for his work on issues related to nuclear weapons, security studies, and the implications of technology on warfare. He is a professor at Stanford University and a senior fellow at the Center for International Security and Cooperation (CISAC). His research often focuses on the risks associated with nuclear proliferation and the history and ethics of nuclear deterrence.