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Rolf Heinrich Sabersky
Rolf Heinrich Sabersky (October 20, 1920 – October 24, 2016) was professor emeritus in mechanical engineering at Caltech. He worked with luminaries throughout his career including Apollo M. O. Smith and Theodore von Kármán at Aerojet. James Van Allan sought his expertise for the development of the Ajax and Bumblebee rocket programs. Life and Times Rolf Heinrich Sabersky was born in Berlin, Germany. His parents were Fritz Sabersky, occupation listed as lawyer and Berta Sabersky, housewife with 3 children, son Wilhelm occupation listed as merchant, daughter Olga Leonore, student and Rolf, student.New York, New York Passenger and Crew Lists. 1925-1957. Database with images. FamilySearch. Rolf Heinrich Sabersky, 1938. Citing Immigration, New York, New York, United States. Publication T715. Washington, D.C.: National Archives and Records Administration. 1938, Sabersky graduated from the Franzosisches Gymnasium, the French High School. He attended from the age of 10 and completed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mechanical Engineering
Mechanical engineering is the study of physical machines that may involve force and movement. It is an engineering branch that combines engineering physics and mathematics principles with materials science, to design, analyze, manufacture, and maintain mechanical systems. It is one of the oldest and broadest of the engineering branches. Mechanical engineering requires an understanding of core areas including mechanics, dynamics, thermodynamics, materials science, structural analysis, and electricity. In addition to these core principles, mechanical engineers use tools such as computer-aided design (CAD), computer-aided manufacturing (CAM), and product lifecycle management to design and analyze manufacturing plants, industrial equipment and machinery, heating and cooling systems, transport systems, aircraft, watercraft, robotics, medical devices, weapons, and others. Mechanical engineering emerged as a field during the Industrial Revolution in Europe in the 18th century; ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Abitur
''Abitur'' (), often shortened colloquially to ''Abi'', is a qualification granted at the end of secondary education in Germany. It is conferred on students who pass their final exams at the end of ISCED 3, usually after twelve or thirteen years of schooling (see also, for Germany, ''Abitur'' after twelve years). In German, the term has roots in the archaic word , which in turn was derived from the Latin (future active participle of , thus "someone who is going to leave"). As a matriculation examination, ''Abitur'' can be compared to A levels, the ''Matura'' or the International Baccalaureate Diploma, which are all ranked as level 4 in the European Qualifications Framework. In Germany Overview The ("certificate of general qualification for university entrance"), often referred to as ("''Abitur'' certificate"), issued after candidates have passed their final exams and have had appropriate grades in both the last and second last school year, is the document which contains t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fluency
Fluency (also called volubility and eloquency) is the property of a person or of a system that delivers information quickly and with expertise. Language use Language fluency is one of a variety of terms used to characterize or measure a person's language ability, often used in conjunction with accuracy and complexity. Although there are no widely agreed-upon definitions or measures of language fluency, someone is typically said to be fluent if their use of the language appears ''fluid'', or natural, coherent, and easy as opposed to slow, halting use. In other words, fluency is often described as the ability to produce language on demand and be understood. Varying definitions of fluency characterize it by the language user’s automaticity, their speed and coherency of language use, or the length and rate of their speech output. Theories of automaticity postulate that more fluent language users can manage all of the components of language use without paying attention to each in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hebrew
Hebrew (; ; ) is a Northwest Semitic language of the Afroasiatic language family. Historically, it is one of the spoken languages of the Israelites and their longest-surviving descendants, the Jews and Samaritans. It was largely preserved throughout history as the main liturgical language of Judaism (since the Second Temple period) and Samaritanism. Hebrew is the only Canaanite language still spoken today, and serves as the only truly successful example of a dead language that has been revived. It is also one of only two Northwest Semitic languages still in use, with the other being Aramaic. The earliest examples of written Paleo-Hebrew date back to the 10th century BCE. Nearly all of the Hebrew Bible is written in Biblical Hebrew, with much of its present form in the dialect that scholars believe flourished around the 6th century BCE, during the time of the Babylonian captivity. For this reason, Hebrew has been referred to by Jews as '' Lashon Hakodesh'' (, ) since an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New York City, New York
New York, often called New York City or NYC, is the List of United States cities by population, most populous city in the United States. With a 2020 population of 8,804,190 distributed over , New York City is also the List of United States cities by population density, most densely populated major city in the United States, and is more than twice as populous as second-place Los Angeles. New York City lies at the southern tip of New York (state), New York State, and constitutes the geographical and demographic center of both the Northeast megalopolis and the New York metropolitan area, the largest metropolitan area in the world by urban area, urban landmass. With over 20.1 million people in its metropolitan statistical area and 23.5 million in its combined statistical area as of 2020, New York is one of the world's most populous Megacity, megacities, and over 58 million people live within of the city. New York City is a global city, global Culture of New ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kristallnacht
() or the Night of Broken Glass, also called the November pogrom(s) (german: Novemberpogrome, ), was a pogrom against Jews carried out by the Nazi Party's (SA) paramilitary and (SS) paramilitary forces along with some participation from the Hitler Youth and German civilians throughout Nazi Germany on 9–10 November 1938. The German authorities looked on without intervening.German Mobs' Vengeance on Jews", ''The Daily Telegraph'', 11 November 1938, cited in The name (literally 'Crystal Night') comes from the shards of broken glass that littered the streets after the windows of Jewish-owned stores, buildings and synagogues were smashed. The pretext for the attacks was the assassination of the German diplomat Ernst vom Rath by Herschel Grynszpan, a 17-year-old German-born Polish Jew living in Paris. Jewish homes, hospitals and schools were ransacked as attackers demolished buildings with sledgehammers. Rioters destroyed 267 synagogues throughout Germany, Austria and the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Proctor
Proctor (a variant of ''procurator'') is a person who takes charge of, or acts for, another. The title is used in England and some other English-speaking countries in three principal contexts: * In law, a proctor is a historical class of lawyers, and the King's (or Queen's) Proctor is a senior government lawyer. * In religion, a proctor represents the clergy in Church of England dioceses. * In education, proctor is the name of university officials in certain universities. In the United States and some other countries, the word "proctor" is frequently used to describe someone who supervises an examination (i.e. a supervisor or invigilator) or dormitory. Law England A proctor was a legal practitioner in the ecclesiastical and admiralty courts in England. These courts were distinguished from the common law courts and courts of equity because they applied "civil law" derived from Roman law, instead of English common law and equity. Historically, proctors were licensed by the Arc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
George Pólya
George Pólya (; hu, Pólya György, ; December 13, 1887 – September 7, 1985) was a Hungarian mathematician. He was a professor of mathematics from 1914 to 1940 at ETH Zürich and from 1940 to 1953 at Stanford University. He made fundamental contributions to combinatorics, number theory, numerical analysis and probability theory. He is also noted for his work in heuristics and mathematics education. He has been described as one of The Martians, an informal category which included one of his most famous students at ETH Zurich, John Von Neumann. Life and works Pólya was born in Budapest, Austria-Hungary, to Anna Deutsch and Jakab Pólya, Hungarian Jews who had converted to Christianity in 1886. Although his parents were religious and he was baptized into the Catholic Church upon birth, George eventually grew up to be an agnostic. He was a professor of mathematics from 1914 to 1940 at ETH Zürich in Switzerland and from 1940 to 1953 at Stanford University. He remained a Pr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Visa (document)
A visa (from the Latin ''charta visa'', meaning "paper that has been seen") is a conditional authorization granted by a polity to a foreigner that allows them to enter, remain within, or leave its territory. Visas typically include limits on the duration of the foreigner's stay, areas within the country they may enter, the dates they may enter, the number of permitted visits, or if the individual has the ability to work in the country in question. Visas are associated with the request for permission to enter a territory and thus are, in most countries, distinct from actual formal permission for an alien to enter and remain in the country. In each instance, a visa is subject to entry permission by an immigration official at the time of actual entry and can be revoked at any time. Visa evidence most commonly takes the form of a sticker endorsed in the applicant's passport or other travel document but may also exist electronically. Some countries no longer issue physical visa evi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Immigration
Immigration is the international movement of people to a destination country of which they are not natives or where they do not possess citizenship in order to settle as permanent residents or naturalized citizens. Commuters, tourists, and other short-term stays in a destination country do not fall under the definition of immigration or migration; seasonal labour immigration is sometimes included, however. As for economic effects, research suggests that migration is beneficial both to the receiving and sending countries. Research, with few exceptions, finds that immigration on average has positive economic effects on the native population, but is mixed as to whether low-skilled immigration adversely affects low-skilled natives. Studies show that the elimination of barriers to migration would have profound effects on world GDP, with estimates of gains ranging between 67 and 147 percent for the scenarios in which 37 to 53 percent of the developing countries' workers migrate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
