Elisabeth Bormann
Elisabeth Ottilie Marianne Bormann (May 12, 1895 – August 1986) was an Austrian physicist and assistant to Max Born. She was involved in measuring the free path of atoms in gases and the size of molecules. Early life and education Bormann was born in Döbling, Austria. She attended elementary and community school in Klosterneuburg. As a child, Bormann was enthusiastic about gymnastics and piano. Bormann was part of the advanced training programme offered by Eugenie Schwarzwald, and finished high school at the :de:Wasagasse grammar school, Wasagasse grammar school (then ''KK Staatsgymnasium''). After completing her high school training, she enrolled in an undergraduate course in mathematics and the University of Vienna. She remained there for her doctoral research, during which she studied decay fluctuations and was awarded a distinction. Her PhD examiners were Franz S. Exner and Gustav Jäger. Research and career In 1919 Bormann joined the Institut für Theoretische Phys ...
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Döbling
Döbling () is the 19th District A district is a type of administrative division that, in some countries, is managed by the local government. Across the world, areas known as "districts" vary greatly in size, spanning regions or counties, several municipalities, subdivisions o ... in the city of Vienna, Austria (german: 19. Bezirk, Döbling, Doebling). It is located on the north end from the central districts, north of the districts Alsergrund and Währing. Döbling has some heavily populated urban areas with many residential buildings, and borders the Vienna Woods. Statistik Austria, 2008, website: (in German: population is "Einwohner"). Wien.gv.at webpage (see below: References). It hosts some of the most expensive residential areas such as Grinzing, Sievering, Neustift am Walde and Kaasgraben and is also the site of many ''Heurigen'' restaurants. There are also some large ''Gemeindebauten'', including Vienna's most famous, the Karl-Marx-Hof. Also located in Döbling is ...
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Mean Free Path
In physics, mean free path is the average distance over which a moving particle (such as an atom, a molecule, or a photon) travels before substantially changing its direction or energy (or, in a specific context, other properties), typically as a result of one or more successive collisions with other particles. Scattering theory Imagine a beam of particles being shot through a target, and consider an infinitesimally thin slab of the target (see the figure). The atoms (or particles) that might stop a beam particle are shown in red. The magnitude of the mean free path depends on the characteristics of the system. Assuming that all the target particles are at rest but only the beam particle is moving, that gives an expression for the mean free path: :\ell = (\sigma n)^, where is the mean free path, is the number of target particles per unit volume, and is the effective cross-sectional area for collision. The area of the slab is , and its volume is . The typical number of st ...
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Austrian Women Physicists
Austrian may refer to: * Austrians, someone from Austria or of Austrian descent ** Someone who is considered an Austrian citizen, see Austrian nationality law * Austrian German dialect * Something associated with the country Austria, for example: ** Austria-Hungary ** Austrian Airlines (AUA) ** Austrian cuisine ** Austrian Empire ** Austrian monarchy ** Austrian German (language/dialects) ** Austrian literature ** Austrian nationality law ** Austrian Service Abroad ** Music of Austria **Austrian School of Economics * Economists of the Austrian school of economic thought * The Austrian Attack variation of the Pirc Defence chess opening. See also * * * Austria (other) * Australian (other) * L'Autrichienne (other) is the feminine form of the French word , meaning "The Austrian". It may refer to: *A derogatory nickname for Queen Marie Antoinette Marie Antoinette Josèphe Jeanne (; ; née Maria Antonia Josepha Johanna; 2 November 1755 – 16 O ...
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1986 Deaths
The year 1986 was designated as the International Year of Peace by the United Nations. Events January * January 1 **Aruba gains increased autonomy from the Netherlands by separating from the Netherlands Antilles. **Spain and Portugal enter the European Community, which becomes the European Union in 1993. *January 11 – The Sir Leo Hielscher Bridges, Gateway Bridge in Brisbane, Australia, at this time the world's longest prestressed concrete free-cantilever bridge, is opened. *January 13–January 24, 24 – South Yemen Civil War. *January 20 – The United Kingdom and France announce plans to construct the Channel Tunnel. *January 24 – The Voyager 2 space probe makes its first encounter with Uranus. *January 25 – Yoweri Museveni's National Resistance Army Rebel group takes over Uganda after leading a five-year guerrilla war in which up to half a million people are believed to have been killed. They will later use January 26 as the official date to avoid a coincidence of ...
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1895 Births
Events January–March * January 5 – Dreyfus affair: French officer Alfred Dreyfus is stripped of his army rank, and sentenced to life imprisonment on Devil's Island. * January 12 – The National Trust for Places of Historic Interest or Natural Beauty is founded in England by Octavia Hill, Robert Hunter and Canon Hardwicke Rawnsley. * January 13 – First Italo-Ethiopian War: Battle of Coatit – Italian forces defeat the Ethiopians. * January 17 – Félix Faure is elected President of the French Republic, after the resignation of Jean Casimir-Perier. * February 9 – Mintonette, later known as volleyball, is created by William G. Morgan at Holyoke, Massachusetts. * February 11 – The lowest ever UK temperature of is recorded at Braemar, in Aberdeenshire. This record is equalled in 1982, and again in 1995. * February 14 – Oscar Wilde's last play, the comedy ''The Importance of Being Earnest'', is first shown at St Jam ...
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Wilhelm Heinrich Heraeus
Wilhelm may refer to: People and fictional characters * William Charles John Pitcher, costume designer known professionally as "Wilhelm" * Wilhelm (name), a list of people and fictional characters with the given name or surname Other uses * Mount Wilhelm, the highest mountain in Papua New Guinea * Wilhelm Archipelago, Antarctica * Wilhelm (crater), a lunar crater See also * Wilhelm scream, a stock sound effect * SS ''Kaiser Wilhelm II'', or USS ''Agamemnon'', a German steam ship * Wilhelmus "Wilhelmus van Nassouwe", usually known just as "Wilhelmus" ( nl, Het Wilhelmus, italic=no; ; English translation: "The William"), is the national anthem of both the Netherlands and the Kingdom of the Netherlands. It dates back to at least 1572 ...

X-ray
An X-ray, or, much less commonly, X-radiation, is a penetrating form of high-energy electromagnetic radiation. Most X-rays have a wavelength ranging from 10  picometers to 10  nanometers, corresponding to frequencies in the range 30  petahertz to 30  exahertz ( to ) and energies in the range 145  eV to 124 keV. X-ray wavelengths are shorter than those of UV rays and typically longer than those of gamma rays. In many languages, X-radiation is referred to as Röntgen radiation, after the German scientist Wilhelm Conrad Röntgen, who discovered it on November 8, 1895. He named it ''X-radiation'' to signify an unknown type of radiation.Novelline, Robert (1997). ''Squire's Fundamentals of Radiology''. Harvard University Press. 5th edition. . Spellings of ''X-ray(s)'' in English include the variants ''x-ray(s)'', ''xray(s)'', and ''X ray(s)''. The most familiar use of X-rays is checking for fractures (broken bones), but X-rays are also used in other ways. ...
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Friedrich Dessauer
Friedrich Dessauer (19 July 1881 – 16 February 1963) was a physicist, a philosopher, a socially engaged entrepreneur and a journalist. Friedrich Dessauer was born in Aschaffenburg, Germany. As a young man he was fascinated by new discoveries in the natural sciences. He was particularly interested in the X-rays discovered by Röntgen and their medical applications. After attending the humanistic Gymnasium in Aschaffenburg, he studied electrical engineering and physics at the Technische Universität Darmstadt and the University of Munich. Due to radiation damage during his research on the use of X-rays, his face was badly damaged and he was repeatedly treated with plastic surgery. In connection with this, he was released from military service. Due to the death of his father, he initially interrupted his studies, continued in 1914 at the Goethe University Frankfurt and then completed it in 1917. From 1924 to 1933 he was a Zentrum party member of the Reichstag, the German P ...
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Charlottenburg
Charlottenburg () is a Boroughs and localities of Berlin, locality of Berlin within the borough of Charlottenburg-Wilmersdorf. Established as a German town law, town in 1705 and named after Sophia Charlotte of Hanover, Queen consort of Kingdom of Prussia, Prussia, it is best known for Charlottenburg Palace, the largest surviving royal palace in Berlin, and the adjacent museums. Charlottenburg was an independent city to the west of Berlin until 1920 when it was incorporated into "Greater Berlin Act, Groß-Berlin" (Greater Berlin) and transformed into a borough. In the course of Berlin's 2001 administrative reform it was merged with the former borough of Wilmersdorf becoming a part of a new borough called Charlottenburg-Wilmersdorf. Later, in 2004, the new borough's districts were rearranged, dividing the former borough of Charlottenburg into the localities of Charlottenburg proper, Westend (Berlin), Westend and Charlottenburg-Nord. Geography Charlottenburg is located in Berlin ...
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Franz S
Franz may refer to: People * Franz (given name) * Franz (surname) Places * Franz (crater), a lunar crater * Franz, Ontario, a railway junction and unorganized town in Canada * Franz Lake, in the state of Washington, United States – see Franz Lake National Wildlife Refuge Businesses * Franz Deuticke, a scientific publishing company based in Vienna, Austria * Franz Family Bakeries, a food processing company in Portland, Oregon * Franz-porcelains, a Taiwanese brand of pottery based in San Francisco Other uses * ''Franz'' (film), a 1971 Belgian film * Franz Lisp, a dialect of the Lisp programming language See also * Frantz (other) * Franzen (other) * Frantzen (other) Frantzen or Frantzén is a surname. It may refer to: * Allen Frantzen (born 1947/48), American medievalist * Björn Frantzén (born 1977), Swedish chef and owner of the Frantzén restaurant * Jean-Pierre Frantzen (1890–1957), Luxembourgian gym ...