Bryant Tuckerman (November 28, 1915 - May 19, 2002) was an American mathematician, born in Lincoln, Nebraska. He was a member of the team that developed the Data Encryption Standard (DES). November 28 is the 332nd day (333rd on leap years) of the year in the Gregorian Calendar. ... 1915 (MCMXV) was a common year starting on Friday (see link for calendar). ... May 19 is the 139th day of the year in the Gregorian Calendar (140th in leap years). ... For album titles with the same name, see 2002 (album). ... Nickname: Star City Location in Nebraska Coordinates: Country State County United States Nebraska Lancaster Founded[1] Renamed Incorporated 1856 July 29, 1867 April 1, 1869 Mayor Coleen Seng Area - City 195. ... General Designer(s) IBM First published 1975 (January 1977 as the standard) Derived from Lucifer (cipher) Cipher(s) based on this design Triple DES, G-DES, DES-X, LOKI89, ICE Algorithm detail Block size(s) 64 bits Key size(s) 56 bits Structure Feistel network Number of rounds 16 Best...
He studied topology at Princeton, where he invented the Tuckerman traverse method for revealing all the faces of a flexagon. Topology (Greek topos, place and logos, study) is a branch of mathematics concerned with spatial properties preserved under bicontinuous deformation (stretching without tearing or gluing); these are the topological invariants. ... Princeton University is a coeducational private university located in Princeton, New Jersey. ... In geometry, flexagons are flat models made from folded strips of paper that can be folded, or flexed, to reveal a number of hidden faces. ...
He was also the discoverer, on March 4, 1971, of the 24th Mersenne prime, a titanic prime, with a value of March 4 is the 63rd day of the year in the Gregorian Calendar (64th in leap years). ... 1971 (MCMLXXI) was a common year starting on Friday (the link is to a full 1971 calendar). ... In mathematics, a Mersenne prime is a prime number that is one less than a prime power of two. ... Titanic prime is a term coined by Samuel Yates in the 1980s, denoting a prime number of more than 1000 decimal digits. ...
The other memebers besides Stone were BryantTuckerman, a graduate student of mathematics; Richard P. Feynman, a graduate student in physics; and John W. Tukey, a young mathematics instructor.
Tuckerman quickly discovered that the simplest way to bring out all the faces of any flexagon was to keep flexing it at the same corner until it refused to open, then to shift to an adjacent corner.
Tuckerman is a well-known mathematician at the Institute for Advanced Study in Princeton, where he works on the Institute's electronic computer project.
BryantTuckerman, a long-time resident of Briarcliff Manor, New York, died on Sunday, May 19, 2002, at the age of 86.
He was born in Lincoln, Nebraska, on November 28, 1915, the son of Una Venable and Louis BryantTuckerman II, a well-known physicist and materials scientist with the U.S. National Bureau of Standards.
BryantTuckerman attended Antioch College and then Princeton University, where as a graduate student in mathematics, he contributed to the invention and theory of "flexagons" in collaboration with fellow students Arthur Stone, John Tukey, and Richard P. Feynmann.
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