Math Forum Internet News

Volume 4, Number 50

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13 December 1999                                Vol. 4, No. 50

                 THE MATH FORUM INTERNET NEWS

Mathematicians on Stamps | Axiom of Choice - Schechter |
Cancer and Mathematics IMAGES OF MATHEMATICIANS ON POSTAGE STAMPS Jeff Miller, Gulf High School, New Port Richey, FL http://jeff560.tripod.com/ An alphabetical list of mathematicians whose images appear on postage stamps: Abel, Archimedes, Cauchy, Descartes, Euler, Galois, Gauss, Kovalevskaya, Laplace, Leibniz, Newton, Pascal, Poincare, Ramanujan, and more. Countries, dates of issuance, and links to enlarged images of the stamps are provided. In addition, Other Mathematics Stamps include Globe and Sputnik orbits, the Pythagorean theorem, Maxwell's Law, Napier and logarithms, Einstein's theory, and many more. Jeff Miller is also the author of Earliest Uses of Various Mathematical Symbols and Earliest Known Uses of Some of the Words of Mathematics: http://members.aol.com/jeff570/mathsym.html http://members.aol.com/jeff570/mathword.html \|/ For more about stamps, see: SCI-PHILATELY: A SELECTIVE HISTORY OF SCIENCE ON STAMPS Maiken Naylor; Science and Engineering Library, University at Buffalo, Buffalo, NY http://ublib.buffalo.edu/libraries/units/sel/exhibits/stamps/ Stamps from the personal collection of the author, in the following categories: Astronomy and Cosmology; Instruments and Measurements; Mathematics and Computation; Chemistry; Evolution and the Fossil Record; Biology; Heredity and the Genetic Code; Physics; Electromagnetic Theory and Light; Modern Physics; Geology and Mapping; and The Nobel Prizes. A short print bibliography is included. -|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|- AXIOM OF CHOICE (AC) - Eric Schechter http://www.math.vanderbilt.edu/~schectex/ccc/choice.html "To choose one sock from each of infinitely many pairs of socks requires the Axiom of Choice, but for shoes the Axiom is not needed." - Bertrand Russell An introduction to and some implications of perhaps the last great controversy of mathematics, the Axiom of Choice, now a basic assumption used in many areas of mathematics. Eric Schechter, Departmental Webmaster and Associate Professor of Mathematics at Vanderbilt University, includes a collection of annotated links to related sites: - Introductory/elementary - Especially noteworthy books and/or researchers - Slightly more advanced and specialized topics - Formal logic and/or automatic theorem-proving - Miscellaneous -|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|- CANCER AND MATHEMATICS - Dildine, Silver An Internet Adventure into Cancer, Pattern Recognition and Image Analysis, and Geometry http://www.mste.uiuc.edu/dildine/cancer/cancer.html Cancer is a group of diseases in which some body cells change their nature, start to divide uncontrollably, and may revert to an undifferentiated type. Through Java applets and Geometer's Sketchpad files to download, this lesson explores the ratio (perimeter squared to area) that designates a cancerous cell. By James P. Dildine, with consultation from Howard A. Silver; hosted by the Office for Mathematics, Science, and Technology Education (MSTE) at the University of Illinois at Urbana-Champaign (UIUC). -|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|- CHECK OUT OUR WEB SITE: The Math Forum http://mathforum.org/ Ask Dr. Math http://mathforum.org/dr.math/ Problems of the Week http://mathforum.org/pow/ Mathematics Library http://mathforum.org/library/ Teacher2Teacher http://mathforum.org/t2t/ Discussion Groups http://mathforum.org/discussions/ Join the Math Forum http://mathforum.org/join.forum.html Send comments to the Math Forum Internet Newsletter editors _o \o_ __| \ / |__ o _ o/ \o/ __|- __/ \__/o \o | o/ o/__/ /\ /| | \ \ / \ / \ /o\ / \ / \ / | / \ / \

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