Citizendia

Eric W. Weisstein (born March 18, 1969, in Bloomington, Indiana) is an encyclopedist who created and maintains MathWorld and Eric Weisstein's World of Science (ScienceWorld). Events 37 - The Roman Senate annuls Tiberius ' will and proclaims Caligula emperor Year 1969 ( MCMLXIX) was a Common year starting on Wednesday (link will display full calendar of the Gregorian calendar. Bloomington is a city and the County seat of Monroe County in the south central region of the U An encyclopedia (or '''encyclopædia''') is a comprehensive written Compendium that contains Information on either all branches of Knowledge MathWorld is an online Mathematics reference work created and largely written by Eric W ScienceWorld, also known as Eric Weisstein's World of Science, is a Web site that opened to the general public in January 2002. He currently works for Wolfram Research, Inc.

Contents

Education

Weisstein holds a Ph. D. in planetary astronomy which he obtained from the California Institute of Technology's (Caltech) Division of Geological and Planetary Sciences in 1996 as well as an M. Astronomy (from the Greek words astron (ἄστρον "star" and nomos (νόμος "law" is the scientific study The California Institute of Technology (commonly referred to as Caltech) is a private, Coeducational research university located in Pasadena Year 1996 ( MCMXCVI) was a Leap year starting on Monday (link will display full 1996 Gregorian calendar) S. in planetary astronomy in 1993 also from Caltech. Year 1993 ( MCMXCIII) was a Common year starting on Friday (link will display full 1993 Gregorian calendar) Weisstein graduated Cum Laude from Cornell University with a B. A. in physics and a minor in astronomy in 1990. Physics (Greek Physis - φύσις in everyday terms is the Science of Matter and its motion. Astronomy (from the Greek words astron (ἄστρον "star" and nomos (νόμος "law" is the scientific study Year 1990 ( MCMXC) was a Common year starting on Monday (link displays the 1990 Gregorian calendar) During his summers away from Cornell, Weisstein participated in research at the Arecibo Observatory, a radio telescope facility in Puerto Rico operated by Cornell. The Arecibo Observatory is a very sensitive Radio telescope located approximately south-southwest from the town of Arecibo in Puerto Rico. Puerto Rico (ˌpwertoˈriko officially the Commonwealth of Puerto Rico ("Estado Libre Asociado de Puerto Rico" {{lang-en|"Associated Free State of Puerto Rico"}} As a graduate student, Weisstein also participated in research at Goddard Space Flight Center in Greenbelt, MD. The Goddard Space Flight Center ( GSFC) is a major NASA space research laboratory established on May 1, 1959 as NASA's first space flight Greenbelt is a city in Prince George's County Maryland, United States. During his time at Goddard, Weisstein participated in the development of hurricane visualization software. In 1996 Weisstein published his doctoral thesis titled Millimeter/Submillimeter Fourier Transform Spectroscopy of Jovian Planet Atmospheres which was completed under faculty advisor Dewey Muhleman and in association with Eugene Serabyn, who is now a member of the Caltech Jet Propulsion Laboratory (JPL). Year 1996 ( MCMXCVI) was a Leap year starting on Monday (link will display full 1996 Gregorian calendar)

Career

Academic research

Upon completion of his doctorate, Weisstein became a research scientist at Caltech in January 1996 and continued work in the field of submillimeter spectroscopy, which is an important analysis technique in astronomy. Research is defined as Human activity based on Intellectual application in the investigation of Matter. A scientist, in the broadest sense refers to any person that engages in a systematic activity to acquire Knowledge or an individual that engages in such practices Year 1996 ( MCMXCVI) was a Leap year starting on Monday (link will display full 1996 Gregorian calendar) Spectroscopy was originally the study of the interaction between Radiation and Matter as a function of Wavelength (λ He collaborated again with Eugene Serabyn and published several papers. Six months later, Weisstein moved to the University of Virginia's Department of Astronomy in Charlottesville, VA. The University of Virginia (also called UVa, UVA, Mr Jefferson's University, or The University) is a highly selective public research Charlottesville is an Independent city located within the confines of Albemarle County in the Commonwealth of Virginia, United States He remained at the University of Virginia for almost three years to continue his work in submillimeter spectroscopy.

MathWorld, ScienceWorld and Wolfram Research

In 1995, Weisstein converted a Microsoft Word document of over 200 pages to hypertext format and uploaded it to his webspace at Caltech under the title Eric's Treasure Trove of Sciences. Microsoft Word is Microsoft 's flagship word processing software. This document contained a compendium of information that Weisstein had obtained throughout his studies. As Weisstein transferred to the University of Virginia to continue his work in astronomy, he continued to refine his fledgling encyclopedia. In November 1998, Weisstein made a deal with the CRC Press to publish his encyclopedia in book format titled, the CRC Concise Encyclopedia of Mathematics. Year 1998 ( MCMXCVIII) was a Common year starting on Thursday (link will display full 1998 Gregorian calendar) The CRC Press, LLC is a publishing group which specializes in producing technical books in a wide range of subjects One year later, in 1999, Weisstein accepted the position of encyclopedist at Wolfram Research, Inc. Year 1999 ( MCMXCIX) was a Common year starting on Friday (link will display full 1999 Gregorian calendar) (WRI).

MathWorld was ready to be unveiled in December 1999. Year 1999 ( MCMXCIX) was a Common year starting on Friday (link will display full 1999 Gregorian calendar) There are more than 11,000 entries in MathWorld. These entries encompass a variety of disciplines including algebra, geometry, calculus, discrete mathematics, topology, number theory, statistics, and the history of mathematics. Algebra is a branch of Mathematics concerning the study of structure, relation, and Quantity. Geometry ( Greek γεωμετρία; geo = earth metria = measure is a part of Mathematics concerned with questions of size shape and relative position Calculus ( Latin, calculus, a small stone used for counting is a branch of Mathematics that includes the study of limits, Derivatives Discrete mathematics, also called finite mathematics, is the study of mathematical structures that are fundamentally discrete in the sense of not supporting or requiring the Topology ( Greek topos, "place" and logos, "study" is the branch of Mathematics that studies the properties of Number theory is the branch of Pure mathematics concerned with the properties of Numbers in general and Integers in particular as well as the wider classes Statistics is a mathematical science pertaining to the collection analysis interpretation or explanation and presentation of Data. The area of study known as the history of mathematics is primarily an investigation into the origin of new discoveries in Mathematics and to a lesser extent an investigation

MathWorld became involved in a legal dispute with the CRC Press in March 2000. The CRC Press, LLC is a publishing group which specializes in producing technical books in a wide range of subjects 2000 ( MM) was a Leap year that started on Saturday of the Common Era, in accordance with the Gregorian calendar. The CRC Press claimed MathWorld violated the copyright on the CRC Concise Encyclopedia of Mathematics. During the dispute a court order shut down MathWorld for over a year from October 23, 2000, to November 6, 2001. Events 4004 BC - Creation of the world begins according to the calculations of Archbishop James Ussher 42 BC - 2000 ( MM) was a Leap year that started on Saturday of the Common Era, in accordance with the Gregorian calendar. Events 355 - Roman Emperor Constantius II promotes his cousin Julian to the rank of Caesar, entrusting him with Year 2001 ( MMI) was a Common year starting on Monday according to the Gregorian calendar. Wolfram Research, Stephen Wolfram, and Eric Weisstein settled with the CRC Press for an undisclosed financial award and several benefits. Among these benefits are the inclusion of a copyright notice of the CRC Press at the bottom of all webpages in MathWorld and legal rights to reproduce MathWorld in book format again.

ScienceWorld, or Eric Weisstein's World of Science as it may be known, was unveiled to the general public in January 2002. See also 2002 (disambiguation Year 2002 ( MMII) was a Common year starting on Tuesday of the Gregorian calendar. ScienceWorld includes more than 1,000 entries in many fields of science including: astronomy, chemistry, physics and biographies of scientists. Astronomy (from the Greek words astron (ἄστρον "star" and nomos (νόμος "law" is the scientific study Chemistry (from Egyptian kēme (chem meaning "earth") is the Science concerned with the composition structure and properties Physics (Greek Physis - φύσις in everyday terms is the Science of Matter and its motion. A biography (from the Greek words bíos (βίος meaning "life" and gráphein (γράφειν meaning "to write" is an account

Other encyclopedias

Eric Weisstein also has several other encyclopedias under development. Reportedly among these are encyclopedias on scientific books, the game of life in cellular automata theory, music and rocketry. "Conway game" can refer to games as defined by Surreal numbers which Conway also developed A cellular automaton (plural cellular automata) is a discrete model studied in computability theory, Mathematics, Theoretical biology Music is an Art form in which the medium is Sound organized in Time. A rocket or rocket vehicle is a Missile, Aircraft or other Vehicle which obtains Thrust by the reaction of the

External links and references

Weisstein's encyclopedias

Complete
Under development

References

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