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Julius Ashkin
Julius Ashkin (August 23, 1920 – June 4, 1982) was a leader in experimental and theoretical physics known for furthering the evolution of particle physics from nuclear physics. As a theoretical physicist he made contributions in the fields of statistical mechanics, solid state physics, nuclear physics, and elementary particle physics. As an experimental physicist his main contributions concerned the passage of certain particles (pi-mesons, or pions) through solid matter and their subsequent decay. He was recognized for the quality of his research and teaching. Early life and family Julius Ashkin was born in Brooklyn, New York, on August 23, 1920. His parents were Isadore and Anna Ashkin. He had two younger siblings, a brother, Arthur, also a physicist, and a sister, Ruth. One older sibling, Gertrude, died while young. The family home was in Brooklyn, New York, at 983 E 27 Street. Isadore had immigrated to the United States from Odessa, Ukraine at the age of 19. Anna, five years ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brooklyn, New York
Brooklyn () is a borough of New York City, coextensive with Kings County, in the U.S. state of New York. Kings County is the most populous county in the State of New York, and the second-most densely populated county in the United States, behind New York County (Manhattan). Brooklyn is also New York City's most populous borough,2010 Gazetteer for New York State . Retrieved September 18, 2016. with 2,736,074 residents in 2020. Named after the Dutch village of Breukelen, Brooklyn is located on the w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pion
In particle physics, a pion (or a pi meson, denoted with the Greek letter pi: ) is any of three subatomic particles: , , and . Each pion consists of a quark and an antiquark and is therefore a meson. Pions are the lightest mesons and, more generally, the lightest hadrons. They are unstable, with the charged pions and decaying after a mean lifetime of 26.033 nanoseconds ( seconds), and the neutral pion decaying after a much shorter lifetime of 85 attoseconds ( seconds). Charged pions most often decay into muons and muon neutrinos, while neutral pions generally decay into gamma rays. The exchange of virtual pions, along with vector, rho and omega mesons, provides an explanation for the residual strong force between nucleons. Pions are not produced in radioactive decay, but commonly are in high-energy collisions between hadrons. Pions also result from some matter–antimatter annihilation events. All types of pions are also produced in natural processes wh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leó Szilárd
Leo Szilard (; hu, Szilárd Leó, pronounced ; born Leó Spitz; February 11, 1898 – May 30, 1964) was a Hungarian-German-American physicist and inventor. He conceived the nuclear chain reaction in 1933, patented the idea of a nuclear fission reactor in 1934, and in late 1939 wrote the letter for Albert Einstein's signature that resulted in the Manhattan Project that built the atomic bomb. According to György Marx, he was one of the Hungarian scientists known as The Martians. Szilard initially attended Palatine Joseph Technical University in Budapest, but his engineering studies were interrupted by service in the Austro-Hungarian Army during World War I. He left Hungary for Germany in 1919, enrolling at Technische Hochschule (Institute of Technology) in Berlin-Charlottenburg, but became bored with engineering and transferred to Friedrich Wilhelm University, where he studied physics. He wrote his doctoral thesis on Maxwell's demon, a long-standing puzzle in the ph ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arnold Nordsieck
Arnold Theodore Nordsieck (January 5, 1911 – January 18, 1971) was an American theoretical physicist. He is best known for his work with Felix Bloch on the infrared problem in quantum electrodynamics. He developed the inertial electrostatic gyroscope (ESG) used as part of the inertial navigation system of nuclear submarines that allows them to remain underwater without having to surface to ascertain their location. Biography Arnold Theodore Nordsieck was born in Marysville, Ohio, on January 5, 1911. He entered Ohio State University, where he earned a M.S. degree in physics in 1932. He then went to the University of California, Berkeley, where he wrote his 1935 doctoral dissertation under the supervision of Robert Oppenheimer on the "Scattering of Radiation by an Electric Field". A National Research Council fellowship allowed Nordsieck to travel to Germany in 1935 as a post-doctoral researcher at the University of Leipzig under Werner Heisenberg. With Felix Bloch he solved the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Edward Teller
Edward Teller ( hu, Teller Ede; January 15, 1908 – September 9, 2003) was a Hungarian-American theoretical physicist who is known colloquially as "the father of the hydrogen bomb" (see the Teller–Ulam design), although he did not care for the title, considering it to be in poor taste. Throughout his life, Teller was known both for his scientific ability and for his difficult interpersonal relations and volatile personality. Born in Hungary in 1908, Teller emigrated to the United States in the 1930s, one of the many so-called "Martians", a group of prominent Hungarian scientist émigrés. He made numerous contributions to nuclear and molecular physics, spectroscopy (in particular the Jahn–Teller and Renner–Teller effects), and surface physics. His extension of Enrico Fermi's theory of beta decay, in the form of Gamow–Teller transitions, provided an important stepping stone in its application, while the Jahn–Teller effect and the Brunauer–Emmett–Teller (BE ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hans Bethe
Hans Albrecht Bethe (; July 2, 1906 – March 6, 2005) was a German-American theoretical physicist who made major contributions to nuclear physics, astrophysics, quantum electrodynamics, and solid-state physics, and who won the 1967 Nobel Prize in Physics for his work on the theory of stellar nucleosynthesis. For most of his career, Bethe was a professor at Cornell University.Available at www.JamesKeckCollectedWorks.or are the class notes taken by one of his students at Cornell from the graduate courses on Nuclear Physics and on Applications of Quantum Mechanics he taught in the spring of 1947. During World War II, he was head of the Theoretical Division at the secret Los Alamos National Laboratory, Los Alamos laboratory that developed the first atomic bombs. There he played a key role in calculating the critical mass of the weapons and developing the theory behind the implosion method used in both the Trinity test and the "Fat Man" weapon dropped on Nagasaki in August 1945. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Isidor Isaac Rabi
Isidor Isaac Rabi (; born Israel Isaac Rabi, July 29, 1898 – January 11, 1988) was an American physicist who won the Nobel Prize in Physics in 1944 for his discovery of nuclear magnetic resonance, which is used in magnetic resonance imaging. He was also one of the first scientists in the United States to work on the cavity magnetron, which is used in microwave radar and microwave ovens. Born into a traditional Polish-Jewish family in Rymanów, Galicia, Rabi came to the United States as an infant and was raised in New York's Lower East Side. He entered Cornell University as an electrical engineering student in 1916, but soon switched to chemistry. Later, he became interested in physics. He continued his studies at Columbia University, where he was awarded his doctorate for a thesis on the magnetic susceptibility of certain crystals. In 1927, he headed for Europe, where he met and worked with many of the finest physicists of the time. In 1929, Rabi returned to the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Enrico Fermi
Enrico Fermi (; 29 September 1901 – 28 November 1954) was an Italian (later naturalized American) physicist and the creator of the world's first nuclear reactor, the Chicago Pile-1. He has been called the "architect of the nuclear age" and the "architect of the atomic bomb". He was one of very few physicists to excel in both theoretical physics and experimental physics. Fermi was awarded the 1938 Nobel Prize in Physics for his work on induced radioactivity by neutron bombardment and for the discovery of transuranium elements. With his colleagues, Fermi filed several patents related to the use of nuclear power, all of which were taken over by the US government. He made significant contributions to the development of statistical mechanics, Quantum mechanics, quantum theory, and nuclear physics, nuclear and particle physics. Fermi's first major contribution involved the field of statistical mechanics. After Wolfgang Pauli formulated his Pauli exclusion principle, exclusion pri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
James Madison High School (Brooklyn)
James Madison High School is an elite public high school in the Midwood section of Brooklyn New York City. It serves students in grades 9 through 12 and is in Region 6 of the New York City Department of Education. Established in 1925, the school has many famous graduates, among them the late United States Supreme Court Associate Justice Ruth Bader Ginsburg, Judge Judy Sheindlin, two sitting U.S. senators, Bernie Sanders (I-VT) and Chuck Schumer (D-NY), former Senator Norm Coleman (R-MN). Academics James Madison High School is organized in accordance with the house system. There are eight houses, each having a Teacher Coordinator, a Guidance Counselor, and an Assistant Principal assigned to supervise and assist students. Special programs Most students who apply to James Madison High School have the opportunity to apply to a specific "House". These include: * Law Institute: Students develop an understanding of American legal institutions, and participate in activities such as moo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Michael Ashkin
Michael Ashkin is an American artist who makes sculptures, videos, photographs and installations depicting marginalized, desolate landscapes. He is a professor at Cornell University College of Architecture, Art, and Planning. Ashkin was a 2009 Guggenheim Fellow. Ashkin is best known for his use of miniature scale and modest materials. He had his first solo show in 1996, and his floor sculpture called ''No. 49,'' was included in the 1997 Whitney Biennial. His work has been featured at the Andrea Rosen Gallery in New York, the Renaissance Society in Chicago, Vienna Secession, and in Documenta11 in Germany. Ashkin authored ''Garden State'', a book which compares the New Jersey Meadowlands to a formal garden. In 2014, A-Jump Books published Ashkin's Long Branch' a book of photographs and text documenting the destruction of a New Jersey neighborhood and in 201TIS Bookspublished a book of photographs from Berlin entitled ''Horizont''. 2019 saw the release of ''were it not for'' froFW:Bo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
History Of The Jews In Galicia (Eastern Europe)
Galician Jews or Galitzianers () are members of the subgroup of Ashkenazi Jews originating in the levant having developed in the diaspora of the Kingdom of Galicia and Lodomeria, from contemporary western Ukraine (Lviv, Ivano-Frankivsk, and Ternopil) and from south-eastern Poland ( Subcarpathian and Lesser Poland). Galicia proper, which was inhabited by Ruthenians, Poles and Jews, became a royal province within Austria-Hungary after the Partitions of Poland in the late 18th century. Galician Jews primarily spoke Yiddish. Demographics In the modern period, Jews were the third most numerous ethnic group in Galicia, after Poles and Ruthenians. At the time that Galicia was annexed by Austria (i.e. the Habsburg monarchy), in 1772, there were approximately 150,000 to 200,000 Jews residing there, comprising 5–6.5% of the total population; by 1857 the Jewish population had risen to 449,000, or 9.6% of the total population.Manekin, Rachel (2 November 2010).Galicia" Translated f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Odessa
Odesa (also spelled Odessa) is the third most populous city and municipality in Ukraine and a major seaport and transport hub located in the south-west of the country, on the northwestern shore of the Black Sea. The city is also the administrative centre of the Odesa Raion and Odesa Oblast, as well as a multiethnic cultural centre. As of January 2021 Odesa's population was approximately In classical antiquity a large Greek settlement existed at its location. The first chronicle mention of the Slavic settlement-port of Kotsiubijiv, which was part of the Grand Duchy of Lithuania, dates back to 1415, when a ship was sent from here to Constantinople by sea. After a period of Lithuanian Grand Duchy control, the port and its surroundings became part of the domain of the Ottomans in 1529, under the name Hacibey, and remained there until the empire's defeat in the Russo-Turkish War of 1792. In 1794, the modern city of Odesa was founded by a decree of the Russian empress Catherine t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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