Glider (Conway's Life)

Glider (Conway's Life) - Factbites
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Topic: Glider (Conway's Life)

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	The glider: an Appropriate Hacker Emblem
		This is a proposal that we adopt one — the glider pattern from the Game of Life.
		The idea of using Life patterns as an emblem was
		This tattoo is impressive, but perhaps a bit excessive.
	www.catb.org /hacker-emblem (486 words)

	Conway's Game of Life - Wikipedia, the free encyclopedia
		The "block" and "boat" are still lifes, the "blinker" and "toad" are oscillators, and the "glider" and "lightweight spaceship" ("LWSS") are spaceships which steadily march their way across the grid as time goes on.
		Conway's Game of Life at the MacTutor archive.
		Since then, various complicated constructions have been made, including glider logic gates, an adder, a prime number generator, and a unit cell which emulates the Game of Life at a much larger scale and slower pace.
	en.wikipedia.org /wiki/Conway's_Game_of_Life (2894 words)

	Untitled Document
		Robert Wainwright's "Lifeline" was a quarterly magazine featuring discoveries in Conway's Life in the early '70's.
		Mark D. Niemiec's Life Page specializes in constructing lifepatterns by smashing gliders together.
		Life32 is a player for Conway's game of life and related cellular automa.
	psoup.math.wisc.edu /Life32.html (1223 words)

	The Facts of Life
		The Life rules were invented by John Conway in 1970.
		The Life glider cycles through four different shapes before returning to its original shape -- in a new position.
		Of course, Conway was imagining Life worlds much larger than the one on this page.
	llk.media.mit.edu /projects/emergence/life-intro.html (190 words)

	Conway's Game of Life - Wikipedia, the free encyclopedia
		The "block" and "boat" are still lifes, the "blinker" and "toad" are oscillators, and the "glider" and "lightweight spaceship" ("LWSS") are spaceships which steadily march their way across the grid as time goes on.
		Life is an example of emergence and self-organization.
		The standard Game of Life, in which a cell is "born" if it has exactly 3 neighbors, stays alive if it has 2 or 3 alive neighbors, and dies otherwise, is symbolized as "23/3".
	en.wikipedia.org /wiki/Conway's_Game_of_Life (190 words)

	0.all
		Conway has demonstrated that it is possible to construct the basic building blocks of a computer from Life using modified glider guns.
		pfg/ PFG: Plant and Fractal Generator polywrld/ Polyworld: Artificial Life Ecological Simulator psoup/ PSOUP: Primordial Soup tierra/ Tierra: Evolution of digital organisms vamv/ VAMV: Video Alpha Mosaic Virus xantfarm/ An X Windows ant farm.
		=========================================================================== Package: areas/alife/systems/pfg/ Name: PFG Summary: Plant and Fractal Generator Version: 3.0 Description: Plant and Fractal Generator (PFG) is a Macintosh program that generates natural-looking plants using string production systems called L-Systems.
	www-cgi.cs.cmu.edu /afs/cs.cmu.edu/project/ai-repository/ai/0.all (190 words)

	Glider - Wikipedia, the free encyclopedia
		In Conway's Game of Life a glider is a certain small structure that moves indefinitely in a direction.
		Gliders are equipped with an altimeter, compass and an air-speed indicator, and often with a radio, though in some countries the radio is not compulsory.
		Among the most well known stories involving military gliders are the assault of the Eben Emael fortress in May 10, 1940 by German paratroopers landing in DFS 230 gliders and the taking of the Pegasus Bridge by troops flown to within 50 metres of the site in Horsa gliders during the D-Day invasion of Normandy.
	en.wikipedia.org /wiki/Glider (2806 words)

	java.lang.NullBlogException
		Eric has proposed the glider pattern from John Conway's Game of Life (see my Java implementation of the Game of Life).
		If you like the concept, and the choice of the glider, but not the current implementations, then do your own glider and put it up on your site/shirt/etc. The idea should be that you make your own if you want to.
		Now, if you don't like the concept of a logo for hackers, then it's ok. But if you like the concept, but not the choice of the glider then read why I think it's a good idea.
	www.ktorn.com /roller/page/ktorn/20031030 (2806 words)

	Life Lexicon (U)
		(To prove the universality of a cellular automaton with simple rules was in fact Conway's aim in Life right from the start.) Conway's proof is outlined in Winning Ways, and also in The Recursive Universe.
		A universal constructor is most useful when attached to a universal computer, which can be programmed to control the constructor to produce the desired pattern of gliders.
		:universal regulator A regulator in which the incoming gliders are aligned to period 1, that is, they have arbitrary timing (subject to some minimum time required for the regulator to recover from the previous glider).
	www.argentum.freeserve.co.uk /lex_u.htm (820 words)

	Conway's Game of Life: Scientific American, October 1970
		Conway also has tracked the life histories of all the hexominoes, and all but seven of the heptominoes.
		One of the most remarkable of Conway's discoveries is the five-counter glider shown in the top illustration on the opposite page.
		Conway has tracked the life histories of a row of n counters through n = 20.
	www.ibiblio.org /lifepatterns/october1970.html (2281 words)

	Spaceship (CA) - Wikipedia, the free encyclopedia
		For example, in Conway's Game of Life, the ability of the glider (Life's simplest spaceship) to transmit information is part of the proof that a universal Turing machine (a machine that can calculate anything that is calculable) can be constructed in Life.
		Spaceships are important because they can sometimes be modified to produce puffers.
		The speed of a spaceship is often expressed in terms of c, the "speed of light", one cell per generation, which in many cellular automata is the fastest that an effect can spread.
	en.wikipedia.org /wiki/Spaceship_(CA) (2281 words)

	► » Conway and universal constructor
		single incoming glider, with a view towards being part of a universal
		has anyone ever demonstrated that exists a universal constructor in Life ?
		has anyone ever demonstrated that exists a universal constructor in Life ?
	www.science-chat.org /detail-6708968.html (593 words)

	Genesis of Artificial Life by Terry Smith
		It was the last piece Conway needed to prove that Life could support universal computation.
		Suggestions were made in the article on patterns that could prove it: a "gun" that repeatedly shoots out gliders or a "puffer train" that moves but leaves behind a trail of "smoke" (Gardner 121-23).
		Within a month his group had found the glider gun, and later, they found a puffer train too (Levy 57).
	www.terrysmith.net /archives/collegehomepage/research/alife/genesis.html (593 words)

	Game of Life - Wikipedia
		Game of Life, Life, Conway's Game of Life, Ã¤r ett spel men inget vanligt sÃ¥dant.
		Animering av Glider Gun, ett objekt i Game of Life
	sv.wikipedia.org /wiki/Game_of_Life (593 words)

	Hacker culture
		More recently, the use of the glider sructure from Conway's Game of Life as a general Hacker Emblem has been proposed and appears to be gaining acceptance.
		Since 1990 the hacker culture has developed a rich range of symbols that serve as recognition symbols and reinforce its group identity.
		Tux, the Linux penguin, the BSD demon, and the Perl camel stand out as examples.
	www.sciencedaily.com /encyclopedia/hacker_culture (593 words)

	p16 Puffer Engine Mail Digest
		Patterns such as the p30 glider gun and the p20 puffer train are well known to anyone who has looked at the numerous published references to Conway's Game of Life.
		Besides p16 puffers, there are p32 puffers for blocks and tubs, and a p48 blinker puffer.
		This simple blinker puffer works catalyzed by the P16 (and works in 3 out of the 4 possible phases), but eats a HWSS employed for the same purpose.
	www.radicaleye.com /lifepage/patterns/p16/p16.html (593 words)

	GameOfLife
		Conway's Prize Question: R. William Gosper (MIT) and computer Life (glider gun and puffer train) prove infinite expansion.
	www.stanford.edu /class/sts129/Alife/html/Life.htm (593 words)

	No Title
		Gosper invented the ``glider gun'', resolving Conway's question as to whether it is possible to produce a finite pattern that evolves into an unlimited number of live cells.
		He used this result to prove that the Game of Life is Turing universal, in that it can be used to simulate any other computational process!
		The Gosper curve, for example, is neither a true 1-dimensional curve, nor a 2-dimensional region of the plane, but rather something in between.
	swiss.csail.mit.edu /classes/6.001/FT97/psets/ps3/hops-new (3122 words)

	Life Revisited
		Or, you might go Conway, Gosper and the MIT hackers one better, and create a pattern that multiplies and lives and dies and mutates into a more complex form-computer life itself.
		In the early '70s, Gosper zealously hacked Life on a PDP-l computer for 18 months, to the point of believing it could potentially generate life itself.
		The shape that Bill Gosper invented, the Glider, will actually "glide" accross the screen, and return for many generations.
	www.atarimagazines.com /v4n12/Life.html (959 words)

	Life Search Programs
		Description: Searches for slow-salvo constructions in Life (patterns that can be formed by starting from a blinker or block and colliding a single glider at a time into a previously constructed pattern, as described in Nicholas Gotts' paper "Self-Organized Construction in Sparse Random Arrays of Conway's Game of Life").
		Achim Flammenkamp as the first program to search for still lifes, written in the mid-1970's.
		Backtracking search, pruning the search tree when the pattern exceeds given size bounds or when a self-overlapping sequence of components is detected (using an Aho-Corasick string matching automaton on a predefined list of impossible sequences).
	www.ics.uci.edu /~eppstein/ca/search.html (959 words)

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Topic: Glider (Conway's Life)

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