Alexander Keewatin Dewdney (born August 5, 1941 in London, Ontario) is a Canadian mathematician, computer scientist and philosopher who has written a number of books on the future and implications of modern computing. He has also written one work of fiction, The Planiverse. Dewdney lives in London, Ontario, Canada where he holds the position of Professor Emeritus of the University of Western Ontario. Dewdney is the son of Canadian artist and author Selwyn Dewdney, as well as the brother of poet Christopher Dewdney. is the 217th day of the year (218th in leap years) in the Gregorian calendar. ... For the movie, see 1941 (film). ... Nickname: Location of London in relation to Middlesex County and the Province of Ontario Coordinates: , Country Canada Province Ontario County Middlesex County Settled 1826 as a village Incorporated 1855 as a city Government  - City Mayor Anne Marie DeCicco-Best  - Governing Body London City Council  - MPs Sue Barnes (LPC) Glen Pearson... Leonhard Euler, one of the greatest mathematicians of all time A mathematician is a person whose primary area of study and research is the field of mathematics. ... Computer science, or computing science, is the study of the theoretical foundations of information and computation and their implementation and application in computer systems. ... The philosopher Socrates about to take poison hemlock as ordered by the court. ... The Planiverse (ISBN 0387989161) is a book by A. K. Dewdney, written in 1984. ... Nickname: Location of London in relation to Middlesex County and the Province of Ontario Coordinates: , Country Canada Province Ontario County Middlesex County Settled 1826 as a village Incorporated 1855 as a city Government  - City Mayor Anne Marie DeCicco-Best  - Governing Body London City Council  - MPs Sue Barnes (LPC) Glen Pearson... Motto: Ut Incepit Fidelis Sic Permanet (Latin: Loyal she began, loyal she remains) Capital Toronto Largest city Toronto Official languages English Government - Lieutenant-Governor James K. Bartleman - Premier Dalton McGuinty (Liberal) Federal representation in Canadian Parliament - House seats 106 - Senate seats 24 Confederation July 1, 1867 (1st) Area [1] Ranked... A professor is a senior teacher and researcher, usually in a college or university. ... The University of Western Ontario (known as Western, as well as UWO or Western Ontario) is a research university located in London, Ontario, Canada. ... This article or section contains information that has not been verified and thus might not be reliable. ... Christopher Dewdney (born May 9, 1951) is an avant-garde Canadian poet. ...

In his early life, as "Keewatin Dewdney," he made a number of influential experimental films, including "Malanga," on the poet Gerard Malanga, as well as "Four Girls," "Scissors," and his most ambitious film, the pre-structuralist "Maltese Cross Movement." "Malanga," "Four Girls" and "Scissors" may be rented in 16mm from the Film-Makers' Cooperative in New York City. More about Dewdney's early film work can be found in Wheeler Winston Dixon's book "The Exploding Eye," a history of experimental film in the 1960s. Gerard Joseph Malanga (born March 20, 1943) is a North American poet, photographer, filmmaker, curator and archivist. ... Wheeler Winston Dixon in 1969 Wheeler Winston Dixon was born March 12, 1950 in New Brunswick, New Jersey, and is best known as a writer of film history, theory and criticism. ...

Dewdney followed Martin Gardner and Douglas Hofstadter in authoring Scientific American 's recreational mathematics column, which he renamed to "Computer Recreations", then "Mathematical Recreations", from 1984 to 1993 (with the last few appearing in Algorithm). These have been collected into 3 books. The subjects include computer viruses, Core Wars, finite automata like Conway's Game of Life, brown noise, the game of Alak, Tinkertoy and spaghetti sorting. Martin Gardner (b. ... Douglas Richard Hofstadter (born February 15, 1945) is an American academic. ... Scientific American is a popular-science magazine, published (first weekly and later monthly) since August 28, 1845, making it the oldest continuously published magazine in the United States. ... Recreational mathematics includes many mathematical games, and can be extended to cover such areas as logic and other puzzles of deductive reasoning. ... A computer virus is a computer program that can copy itself and infect a computer without permission or knowledge of the user. ... A game of Core War running under the pMARS simulator, as seen through the graphical core display. ... In the theory of computation, a finite state machine (FSM) or finite state automaton (FSA) is an abstract machine that has only a finite, constant amount of memory. ... Gospers Glider Gun creating gliders. The Game of Life is a cellular automaton devised by the British mathematician John Horton Conway in 1970. ... In science, red noise, Brownian noise, or brown noise ▶(?) is the kind of signal noise produced by Brownian motion. ... Alak is a close relative of the board game Go played on a one_dimensional board. It was originally described in A. K. Dewdneys 1984 book The Planiverse; in 2001, Alan Baljeu modified the game to its present state. ... The Tinkertoy Construction Set was created in 1914—one year after the A. C. Gilbert Companys Erector Set—by Charles H. Pajeau and Robert Pettit in Evanston, Illinois. ... Spaghetti sort is a linear-time, analog algorithm for sorting a sequence of items, introduced by Alexander Dewdney in his Scientific American column. ...

Dewdney has been a Muslim for over 35 years.[1] He has developed hypotheses which sharply disagree with the official version of the events surrounding the September 11, 2001 Terrorist Attacks (see external links below). The World Trade Center on fire The September 11, 2001 attacks were a series of coordinated terrorist attacks against the United States on September 11, 2001. ...

Works

• The Planiverse: Computer Contact with a Two-Dimensional World (1984). ISBN 0-387-98916-1.
• The Armchair Universe: An Exploration of Computer Worlds (1988). ISBN 0-7167-1939-8. (collection of "Mathematical Recreations" columns)
• The Magic Machine: A Handbook of Computer Sorcery (1990). ISBN 0-7167-2144-9. (collection of "Mathematical Recreations" columns)
• The New Turing Omnibus: Sixty-Six Excursions in Computer Science (1993). ISBN 0-8050-7166-0.
• The Tinkertoy Computer and Other Machinations (1993). ISBN 0-7167-2491-X. (collection of "Mathematical Recreations" columns)
• Introductory Computer Science: Bits of Theory, Bytes of Practice (1996). ISBN 0-7167-8286-3.
• 200% of Nothing: An Eye Opening Tour Through the Twists and Turns of Math Abuse and Innumeracy (1996). ISBN 0-471-14574-2.
• Yes, We Have No Neutrons: An Eye-Opening Tour through the Twists and Turns of Bad Science (1997). ISBN 0-471-29586-8.
• Hungry Hollow: The Story of a Natural Place (1998). ISBN 0-387-98415-1.
• A Mathematical Mystery Tour: Discovering the Truth and Beauty of the Cosmos (2001). ISBN 0-471-40734-8.
• Beyond Reason: Eight Great Problems that Reveal the Limits of Science (2004). ISBN 0-471-01398-6.

The Planiverse (ISBN 0387989161) is a book by A. K. Dewdney, written in 1984. ... Year 1984 (MCMLXXXIV) was a leap year starting on Sunday (link displays the 1984 Gregorian calendar). ... Year 1988 (MCMLXXXVIII) was a leap year starting on Friday (link displays 1988 Gregorian calendar). ... Year 1990 (MCMXC) was a common year starting on Monday (link displays the 1990 Gregorian calendar). ... Year 1993 (MCMXCIII) was a common year starting on Friday (link will display full 1993 Gregorian calendar). ... Year 1993 (MCMXCIII) was a common year starting on Friday (link will display full 1993 Gregorian calendar). ... Year 1996 (MCMXCVI) was a leap year starting on Monday (link will display full 1996 Gregorian calendar). ... Year 1996 (MCMXCVI) was a leap year starting on Monday (link will display full 1996 Gregorian calendar). ... Year 1997 (MCMXCVII) was a common year starting on Wednesday (link will display full 1997 Gregorian calendar). ... Year 1998 (MCMXCVIII) was a common year starting on Thursday (link will display full 1998 Gregorian calendar). ... Year 2001 (MMI) was a common year starting on Monday (link displays the 2001 Gregorian calendar). ... shelby was here 2004 (MMIV) was a leap year starting on Thursday of the Gregorian calendar. ...

See also

• List of Canadian writers
• List of mathematicians
• Mathematical games

This is a list of Canadian literary figures, including poets, novelists, childrens writers, essayists, and scholars. ... Mathematicians by letter: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Requested mathematicians articles Lists of mathematicians (by country, etc. ... Mathematical games include many topics which are a part of recreational mathematics, but can also cover topics such as the mathematics of games, and playing games with mathematics. ...

External links

• His personal page
• Operation Pearl one of Dewdney's analyses of 9/11
• PHYSICS 911 "is created and maintained by a group of scientists, engineers and other professionals known collectively as the Scientific Panel Investigating Nine-eleven."