LifeWiki - User contributions [en]

Conduit

2014-11-08T03:34:58Z

Scotgot: /* External links, removed two broken links*/

{{Glossary}}
A '''conduit''' is an arrangement of [[still life]]s and/or [[oscillator]]s that move an active object to another location without themselves being permanently damaged. The object may be transformed into a different active object in the process, but no permanent debris may be left behind. Alternatively, [[glider]]s or other [[spaceship]]s may be emitted; they will either abandon the site of their creation, or can be absorbed by eaters. Probably the most important conduit is [[conduit 1]], in which a [[B-heptomino]] is transformed into a [[Herschel]] in 59 generations.

==Herschel conduits==

The most prolific stable conduits are those which rotate, reflect or translate a [[Herschel]] in a certain number of [[generation]]s. Oscillators of all [[period]]s => 58 can be built using these sixteen elementary conduits. All except the smallest [[stable reflector]]s use Herschel conduits, the counter-examples being the [[rectifier]] and [[boojum reflector]].

Herschel conduits can be chained in order to form a [[Herschel track]]. Karel Suhajda's search program ''Hersrch'' automates the process of building a track.

The elementary conduits are codenamed according to the final orientation of the output Herschel relative to the input Herschel, and the number of generations it takes for the output Herschel to reach the same phase as the input Herschel. For example, the R64 conduit performs a right turn in 64 generations; R designates right turn, L left turn, F flip, and x displacement:

* R64
* Fx77
* L112
* F116
* F117
* Fx119
* Bx125
* Fx153
* L156
* Fx158
* F166
* F171
* Fx176
* Lx200
* Rx202
* Bx222

Many of these use the block+snake combination (conduit 1) in order to clean up the output B-heptomino to produce an output Herschel. Dave Greene, with the invention of his [[boojum reflector]], discovered a way to remove this block using the first natural glider of the Herschel. However, these conduits are not considered 'elementary', since they contain a boojum reflector.

==See also==
* [[Herschel]]
* [[Herschel_conduit]]

==External link==
* [http://www.argentum.freeserve.co.uk/lex_c.htm#conduit Conduit] at the Life Lexicon
* [http://radicaleye.com/lifepage/patterns/bhept/bhept.html] Buckingham on B-heptominos in oscillators
* [http://radicaleye.com/lifepage/patterns/ssrefl/ssrefl.html] Stephen Silver on stable reflectors

[[Category:Conduits| ]]

Weekender

2013-03-18T14:03:42Z

Scotgot: add reference to loafer wtih link.

{{Spaceship|name=Weekender|pname=weekender|dir=Orthogonal|p=7|s=2c/7|bx=18|by=12|c=36|h=45.1|discoverer=David Eppstein|discoveryear=2000|life105=true|life106=true|plaintext=true|rle=true|animated=true}}
'''Weekender''' is a [[2c/7 orthogonal]] [[spaceship]] that was found by [[:Category:Patterns found by David Eppstein|David Eppstein]] on January 12, [[:Category:Patterns found in 2000|2000]].<ref>{{CiteSummersPattern|name=jslife}}</ref> On April 27, 2000, [[:Category:Patterns found by Stephen Silver|Stephen Silver]] found a [[tagalong]] for a pair of weekenders (shown below). At present, n weekenders pulling n-1 tagalongs constitute the only known spaceships with [[speed]] 2c/7. These were the only known [[:Category:Spaceships_with_period_7|period-7]] spaceships until the discovery of [[lobster (spaceship)|lobster]] in [[:Category:patterns found in 2011|2011]] and the [[loafer]] in [[:Category:patterns found in 2013|2013]].

==Image gallery==
{|
|-
|[[Image:weekender_tagalong.png|framed|left|Two weekenders followed by a tagalong {{JavaRLE|weekendertagalong|brief}}]]
|}

==References==
<references/>

==External links==
*[http://arxiv.org/abs/cs/0004003 Searching for Spaceships] - Eppstein's paper describing the discovery of the weekender
{{LinkWeisstein|Weekender.html}}
{{LinkLexicon|lex_w.htm#weekender}}
[[Category:Non-monotonic spaceships]]

File:Loafer.gif

2013-03-18T14:00:24Z

Scotgot:

Trans-barge with tail

2012-07-26T15:06:09Z

Scotgot: added a link to 'still life'

{{Stilllife|name=Trans-barge with tail|pname=transbargewithtail|bx=6|by=6|c=10|life105=true|life106=true|plaintext=true|rle=true|synthesis=4|synthesisRLE=true|rulemin=B/S23|rulemax=B35678/S012345678|rulespecial=[[Conway's Game of Life|Conway Life]], [[HighLife]]}}
'''Trans-barge with tail''' (or '''up barge with tail''') is the eighty-fourth most common [[Still_life|still life]], being less common than [[snorkel loop]], but more common than [[beehive and cap]].<ref>{{CiteAchim|accessdate=November 3, 2009}}</ref> On April 13, [[:Category:patterns found in 2007|2007]] [[Dean Hickerson]] found a [[:Category:patterns that can be constructed with 4 gliders|4]]-[[glider]] [[glider synthesis|synthesis]] of this still life.<ref>Dean Hickerson's [http://radicaleye.com/DRH/syntheses.html 2, 3, and 4-glider syntheses] pattern collection</ref>

==See also==
*[[Barge]]
*[[Cis-barge with tail]]

==References==
<references/>

==External links==
*[http://home.interserv.com/~mniemiec/still.htm#10-bit%20still Ten-bit still lifes] by Mark Niemiec

User talk:Tropylium

2011-09-20T12:41:34Z

Scotgot: Created page with "Thanks for fixing my spelling. :) --~~~~ (scotgot)"

Thanks for fixing my spelling. :) --[[User:Scotgot|Scot Ellison]] 07:41, 20 September 2011 (CDT) (scotgot)

Beluchenko's p13

2011-09-15T13:58:37Z

Scotgot: vol in standard format.

{{Oscillator|name=34P13|pname=34p13|c=34|p=13|bx=17|by=17|h=30.2|v=0.96|discoverer=Nicolay Beluchenko|discoveryear=2009|animated=yes|rle=true|life105=true|life106=true|plaintext=true|V=0.96}}
'''34P13''' is an unnamed [[period]] [[:Category:Oscillators with period 13|13]] [[oscillator]] found by [[Nicolay Beluchenko]]<ref>{{cite web|url=http://pentadecathlon.com/lifeNews/2009/01/new_oscillators_3.html |title=New Oscillators at Game of Life News|date=January 8, 2009 |accessdate=April 11, 2009}}</ref> on January 4, 2009.<ref>Jason Summers' ''all-osc'' oscillators collection</ref> In terms of its 34 [[cell]]s, it is the smallest known period 13 oscillator.<ref>{{cite web|url=http://pentadecathlon.com/objects/class2/class2.php?part=2 |title=Class 2 Objects Catalog |accessdate=April 11, 2009}}</ref>

It can be combined with itself and with other oscillators to produce larger oscillators with periods that are multiples of 13. There are three ways in which two of these can share a common [[block]], all of which are shown below. [[:Category:Patterns found by Jason Summers|Jason Summers]] also discovered that four of these oscillators can be combined to create a pure [[rotor]] oscillator (i.e., where none of the cells are alive in all [[phase]]s), making it the first such oscillator known with a prime period greater than two.

==Image gallery==
{|
|-
|[[Image:64p131.png|framed|left|Two copies of this oscillator sharing a block {{JavaRLE|64p13.1|brief}}]]
|[[Image:60p131.png|framed|left|Two copies of this oscillator sharing two blocks {{JavaRLE|60p13.1|brief}}]]
|[[Image:64p132.png|framed|left|Two copies of this oscillator sharing a block {{JavaRLE|64p13.2|brief}}]]
|[[Image:128p131.png|framed|left|Four copies of this oscillator sharing four blocks {{JavaRLE|128p13.1|brief}}]]
|}

==See also==
*[[Caterer on 34P13]]
*[[Fumarole on 34P13]]

==References==
<references />
[[Category:Patterns with diagonal bilateral symmetry]]

Beluchenko's p13

2011-09-15T13:44:00Z

Scotgot:

{{Oscillator|name=34P13|pname=34p13|c=34|p=13|bx=17|by=17|h=30.2|v=96|discoverer=Nicolay Beluchenko|discoveryear=2009|animated=yes|rle=true|life105=true|life106=true|plaintext=true|V=0.96}}
'''34P13''' is an unnamed [[period]] [[:Category:Oscillators with period 13|13]] [[oscillator]] found by [[Nicolay Beluchenko]]<ref>{{cite web|url=http://pentadecathlon.com/lifeNews/2009/01/new_oscillators_3.html |title=New Oscillators at Game of Life News|date=January 8, 2009 |accessdate=April 11, 2009}}</ref> on January 4, 2009.<ref>Jason Summers' ''all-osc'' oscillators collection</ref> In terms of its 34 [[cell]]s, it is the smallest known period 13 oscillator.<ref>{{cite web|url=http://pentadecathlon.com/objects/class2/class2.php?part=2 |title=Class 2 Objects Catalog |accessdate=April 11, 2009}}</ref>

It can be combined with itself and with other oscillators to produce larger oscillators with periods that are multiples of 13. There are three ways in which two of these can share a common [[block]], all of which are shown below. [[:Category:Patterns found by Jason Summers|Jason Summers]] also discovered that four of these oscillators can be combined to create a pure [[rotor]] oscillator (i.e., where none of the cells are alive in all [[phase]]s), making it the first such oscillator known with a prime period greater than two.

==Image gallery==
{|
|-
|[[Image:64p131.png|framed|left|Two copies of this oscillator sharing a block {{JavaRLE|64p13.1|brief}}]]
|[[Image:60p131.png|framed|left|Two copies of this oscillator sharing two blocks {{JavaRLE|60p13.1|brief}}]]
|[[Image:64p132.png|framed|left|Two copies of this oscillator sharing a block {{JavaRLE|64p13.2|brief}}]]
|[[Image:128p131.png|framed|left|Four copies of this oscillator sharing four blocks {{JavaRLE|128p13.1|brief}}]]
|}

==See also==
*[[Caterer on 34P13]]
*[[Fumarole on 34P13]]

==References==
<references />
[[Category:Patterns with diagonal bilateral symmetry]]

File:One seventh Diag.gif

2011-09-14T17:42:52Z

Scotgot:

Lobster

2011-09-14T17:41:17Z

Scotgot:

{{Spaceship|name=83P7H1V1|pname=83p7h1v1|dir=Diagonal|p=7|s=c/7|c=83|bx=26|by=26|h=|discoverer=Matthias Merzenich|discoveryear=2011|animated=true}}
'''83P7H1V1''' is an unnamed [[c/7 diagonal]] [[spaceship]] that was discovered by [[Matthias Merzenich]] in August [[:Category:Patterns found in 2011|2011]]. It was the first c/7 diagonal spaceship to be found.<ref>{{Cite web|url=http://pentadecathlon.com/lifeNews/2011/08/new_spaceship_velocity.html|title=New spaceship velocity|author=Adam Goucher|date=August 26, 2011|accessdate=September 12, 2011}}</ref>

== Notes ==
<references/>

Talk:Lobster

2011-09-14T17:12:24Z

Scotgot: /* proposed move to 'Lobster' */ more talk on names.

==proposed move to 'Lobster'==
Scot Ellison proposed the name 'lobster' for this pattern, which I have no objections to. I intend to move this page unless someone else has any objections. ~[[User:Sokwe|Sokwe]] 16:33, 13 September 2011 (CDT)

OK --[[User:David|David]] 00:25, 14 September 2011 (CDT)

There seems to be a problem with naming the ship lobster. [[Lobster]] is already a page and an alternate name to [[breeder 1]].--[[User:Scotgot|Scot Ellison]] 11:38, 14 September 2011 (CDT)

I don't think this is a good idea to call another pattern a lobster, if this name has been already reserved. [[User:Codeholic|Codeholic]] 11:49, 14 September 2011 (CDT)

:Lobster (spaceship) is workable, but awkward. Another name would be fine, but this diagonal c/7 spaceship is too important to be called 83P7H1V1! 83P7H1V1 is not a nice name.--[[User:Scotgot|Scot Ellison]] 12:12, 14 September 2011 (CDT)

Spaceship

2011-09-14T17:04:51Z

Scotgot: /* History */ c/7 diag spaceship is a lobster

{{Glossary}}
[[Image:lwss.gif|framed|right|The lightweight spaceship in [[Conway's Game of Life]]]]A '''spaceship''' (much less commonly referred to as a '''glider'''<ref>{{cite web|url=http://www.argentum.freeserve.co.uk/lex_g.htm#glider |title=Glider |work=The Life Lexicon |publisher=Stephen Silver |accessdate=April 18, 2009}}</ref> or a '''fish'''<ref>{{cite web|url=http://www.argentum.freeserve.co.uk/lex_f.htm#fish |title=Fish |work=The Life Lexicon |publisher=Stephen Silver |accessdate=April 18, 2009}}</ref>) is a finite [[pattern]] that returns to its initial state after a number of [[generation]]s (known as its [[Period#Spaceships|period]]) but in a different location.

__TOC__

==Spaceship Speed==
{{main|Speed}}
The speed of a spaceship is the number of [[cell]]s that the pattern moves during its period divided by the period length. This is expressed in terms of ''c'' (the metaphorical "speed of light") which is one cell per generation; thus, a spaceship with a period of five that moves two cells to the left during its period travels at the speed of [[2c/5 orthogonal|2c/5]]. Until the construction of [[Gemini]] in May [[:Category:patterns found in 2010|2010]], all known spaceships in [[Conway's Game of Life|Life]] traveled either orthogonally (only horizontal or vertical displacement) or diagonally (equal horizontal and vertical displacement) at one of the twelve known speeds; Spaceships traveling in other directions and at different speeds have been constructed in other two dimensional [[cellular automaton|cellular automata]],<ref>{{cite web|url=http://fano.ics.uci.edu/ca/ |title=Gliders in Life-Like Cellular Automata |publisher=David Eppstein|accessdate=April 18, 2009}}</ref> and it is known that Life has spaceships that travel in all rational directions at arbitrarily slow speeds (see [[universal constructor]]).

==History==

The four smallest spaceships in life, the [[glider]], [[lightweight spaceship]], [[middleweight spaceship]] and [[heavyweight spaceship]], were all found by hand in [[:Category:patterns found in 1970|1970]]. For almost twenty years spaceship development was limited to adding [[Tagalong|tagalongs]] to the known [[c/2 orthogonal|c/2]] spaceships. Significant advances in spaceship technology came in [[:Category:patterns found in 1989|1989]], when [[Dean Hickerson]] began using [[Computer search|automated searches]] based on a depth-first backtracking algorithm. These searches found orthogonal spaceships with speeds of [[c/3 orthogonal|c/3]], [[c/4 orthogonal|c/4]], and [[2c/5 orthogonal|2c/5]], as well as the first spaceship other than the glider to travel at the speed of [[c/4 diagonal|c/4]] diagonally, dubbed the [[big glider]]. Hickerson also found several ways to combine [[switch engine]]s to create the first diagonal [[c/12 diagonal|c/12]] spaceships, named [[Cordership]]s in honour of [[Charles Corderman]]. The next spaceship speed to be discovered was that of the orthogonal [[c/5 orthogonal|c/5]] [[snail]], found by [[Tim Coe]] in [[:Category:patterns found in 1996|1996]], with a program he had designed using breadth-first searching, and which could split tasks between multiple CPUs.<ref>{{cite web|url=http://www.radicaleye.com/lifepage/patterns/p5ss.html |title=c/5 Orthogonal spaceship |author=Tim Coe |publisher=Paul's Page of Conway's Life Miscellany |accessdate=April 18, 2009}}</ref> In the following year [[David Bell]] found the much smaller c/5 [[spider]] using [[lifesrc]], a program based on Hickerson's search algorithm.<ref>{{cite web|url=http://radicaleye.com/lifepage/patterns/newc5/newc5.html |title=New c/5 spaceship |author=David Bell |publisher=Paul's Page of Conway's Life Miscellany |accessdate=April 18, 2009}}</ref>

In March of [[:Category:patterns found in 1998|1998]] [[David Eppstein]] created [[gfind]], a program that uses iterative deepening depth-first searching,<ref>{{cite web|url=http://arxiv.org/PS_cache/cs/pdf/0004/0004003v2.pdf |title=Searching for Spaceships (PDF) |author=David Eppstein |accessdate=April 18, 2009}}</ref> and in [[:Category:patterns found in 2000|2000]] he used this program to find the first spaceship that travels at the speed of [[2c/7 orthogonal|2c/7]] orthogonally, the [[weekender]]. A search by [[Paul Tooke]] using the same program found the first [[c/6 orthogonal|c/6]] orthogonal spaceship, the [[dragon]], later that year. Also in 2000, [[Jason Summers]] found the first [[c/5 diagonal|c/5]] diagonal spaceship using David Bell's lifesrc program.

In [[:Category:patterns found in 2004|2004]] [[Gabriel Nivasch]], with the help of Jason Summers and David Bell, finished construction on the [[caterpillar]], the first known orthogonal [[17c/45 orthogonal|17c/45]] spaceship, which made use of the [[17c/45 reaction]].

In May, [[:Category:patterns found in 2010|2010]] [[Andrew J. Wade]] created a universal constructor-based spaceship, [[Gemini]], which travels at a speed of (5120,1024)c/33699586.<ref>{{cite web|url=http://pentadecathlon.com/lifeNews/2010/05/oblique_life_spaceship_created.html|title=Oblique Life spaceship created|date=May 19, 2010|work=Game of Life News|author=Adam P. Goucher|accessdate=May 21, 2010}}</ref> This was the first explicitly constructed spaceship in Life to travel in an [[Types_of_spaceships#Knightship|oblique]] direction, and also yielded the first explicit method of constructing arbitrarily slow spaceships.

[[Image:weekender_small.gif|framed|right|David Eppstein's weekender]]

{| class="wikitable"
|-
! Speed
! Direction
! First discovered
! Discoverer
! Year of discovery
|-
! c/4
| diagonal
| [[glider]]
| [[Richard Guy]]
| [[:Category:Patterns found in 1970|1970]]
|-
! c/5
| diagonal
| [[295P5H1V1]]
| [[Jason Summers]]
| [[:Category:Patterns found in 2000|2000]]
|-
! c/6
| diagonal
| [[seal]]
| [[Nicolay Beluchenko]]
| [[:Category:Patterns found in 2005|2005]]
|-
! c/7
| diagonal
| [[83P7H1V1|Lobster]]
| [[Matthias Merzenich]]
| [[:Category:Patterns found in 2011|2011]]
|-
! c/12
| diagonal
| [[13-engine Cordership]]
| [[Dean Hickerson]]
| [[:Category:Patterns found in 1991|1991]]
|-
! colspan="5" |
|-
! c/2
| orthogonal
| [[lightweight spaceship]]
| [[John Conway]]
| [[:Category:Patterns found in 1970|1970]]
|-
! c/3
| orthogonal
| [[25P3H1V0.2]]
| [[Dean Hickerson]]
| [[:Category:Patterns found in 1989|1989]]
|-
! c/4
| orthogonal
| [[119P4H1V0]]
| [[Dean Hickerson]]
| [[:Category:Patterns found in 1989|1989]]
|-
! 2c/5
| orthogonal
| [[44P5H2V0]]
| [[Dean Hickerson]]
| [[:Category:Patterns found in 1991|1991]]
|-
! c/5
| orthogonal
| [[snail]]
| [[Tim Coe]]
| [[:Category:Patterns found in 1996|1996]]
|-
! c/6
| orthogonal
| [[dragon]]
| [[Paul Tooke]]
| [[:Category:Patterns found in 2000|2000]]
|-
! 2c/7
| orthogonal
| [[weekender]]
| [[David Eppstein]]
| [[:Category:Patterns found in 2000|2000]]
|-
! 17c/45
| orthogonal
| [[caterpillar]]
| [[Gabriel Nivasch]]
| [[:Category:Patterns found in 2004|2004]]
|-
! colspan="5" |
|-
! 2560c/16849793
| slope 5
| [[Gemini]]
| [[Andrew J. Wade]]
| [[:Category:Patterns found in 2010|2010]]
|-
! colspan="5" |
|-
! 2048c/17783745
| slope 2
| [http://www.conwaylife.com/forums/viewtopic.php?f=2&t=406&start=25 Gemini 2]
| [[Dave Greene]]
| [[:Category:Patterns found in 2010|2010]]
|}

==Spaceship types==
{{main|Types of spaceships|Spaceship types}}
Although Spaceships are most commonly categorized by their speed and direction, other categorizations have been applied to spaceships based on their appearances, components, or other properties. One such categorization is the symmetry of spaceships: spaceships can be bilaterally symmetric, Such as Tim Coe's snail, may exhibit [[Types_of_spaceships#Glide_symmetric_spaceship|glide symmetry]], such as the glider, or may be asymmetric, such as the caterpillar. Other, somewhat subjective categorizations have also been made, such as [[greyship]]s, spaceships filled with large amounts of static, live cells, or [[Types_of_spaceships#Smoking_ship|smoking ships]], which produce large [[spark]]s, a notable example being the [[schick engine]]. A spaceship may also support other components which would not function as spaceships on their own. Given a freestanding spaceship, such additional components are often referred to as [[tagalong|tagalongs]]; perhaps even pushalongs. Unstable spaceships immersed in a sustaining cloud are known as [[Types_of_spaceships#Flotilla|flotillae]]. A well known example is the [[overweight spaceship]], which is unstable on its own but may be 'escorted' by two smaller spaceships.

[[Image:Greyship2_H_Holzwart.png|framed|right|A greyship found by [[Hartmut Holzwart]]]]

{| class="wikitable"
|-
! Speed
! Direction
! Smallest known
! Minimum # of [[cell]]s
|-
! c/4
| diagonal
| [[glider]]
| [[:Category:Patterns with 5 cells|5]]
|-
! c/5
| diagonal
| [[58P5H1V1]]
| [[:Category:Patterns with 58 cells|58]]
|-
! c/6
| diagonal
| [[77P6H1V1]]
| [[:Category:Patterns with 77 cells|77]]
|-
! c/7
| diagonal
| [[Lobster_(spaceship)|Lobster]]
| [[:Category:Patterns with 83 cells|83]]
|-
! c/12
| diagonal
| [[4-engine Cordership]]
| [[:Category:Patterns with 134 cells|134]]
|-
! colspan="4" |
|-
! c/2
| orthogonal
| [[lightweight spaceship]]
| [[:Category:Patterns with 9 cells|9]]
|-
! c/3
| orthogonal
| [[25P3H1V0.1]], [[25P3H1V0.2]]
| [[:Category:Patterns with 25 cells|25]]
|-
! c/4
| orthogonal
| [[46P4H1V0]]
| [[:Category:Patterns with 46 cells|46]]
|-
! 2c/5
| orthogonal
| [[30P5H2V0]]
| [[:Category:Patterns with 30 cells|30]]
|-
! c/5
| orthogonal
| [[spider]]
| [[:Category:Patterns with 58 cells|58]]
|-
! c/6
| orthogonal
| [[56P6H1V0]]
| [[:Category:Patterns with 56 cells|56]]
|-
! 2c/7
| orthogonal
| [[weekender]]
| [[:Category:Patterns with 36 cells|36]]
|-
! 17c/45
| orthogonal
| [[caterpillar]]
| [[:Category:Patterns with 1000 or more cells|11,880,063]]
|-
! colspan="5" |
|-
! 2560c/16849793
| slope 5
| [[Gemini]]
| [[:Category:Patterns with 1000 or more cells|846,278]]
|-
! colspan="5" |
|-
! 2048c/17783745
| slope 2
| colspan="2" | [http://www.conwaylife.com/forums/viewtopic.php?f=2&t=406&start=25a Gemini 2]
|}

==See also==
*[[:Category:Spaceships|List of spaceships]]
*[[Spaceship terminology]]
*[[Types of spaceships]]
*[[Spaceship flotilla]]

==Notes==
<references/>

==External links==
{{LinkLexicon|filename=lex_s.htm#spaceship|patternname=Spaceship}}
{{LinkWeisstein|filename=Spaceship.html|patternname=Spaceship}}

Spaceship

2011-09-14T16:59:57Z

Scotgot: /* Spaceship types */

{{Glossary}}
[[Image:lwss.gif|framed|right|The lightweight spaceship in [[Conway's Game of Life]]]]A '''spaceship''' (much less commonly referred to as a '''glider'''<ref>{{cite web|url=http://www.argentum.freeserve.co.uk/lex_g.htm#glider |title=Glider |work=The Life Lexicon |publisher=Stephen Silver |accessdate=April 18, 2009}}</ref> or a '''fish'''<ref>{{cite web|url=http://www.argentum.freeserve.co.uk/lex_f.htm#fish |title=Fish |work=The Life Lexicon |publisher=Stephen Silver |accessdate=April 18, 2009}}</ref>) is a finite [[pattern]] that returns to its initial state after a number of [[generation]]s (known as its [[Period#Spaceships|period]]) but in a different location.

__TOC__

==Spaceship Speed==
{{main|Speed}}
The speed of a spaceship is the number of [[cell]]s that the pattern moves during its period divided by the period length. This is expressed in terms of ''c'' (the metaphorical "speed of light") which is one cell per generation; thus, a spaceship with a period of five that moves two cells to the left during its period travels at the speed of [[2c/5 orthogonal|2c/5]]. Until the construction of [[Gemini]] in May [[:Category:patterns found in 2010|2010]], all known spaceships in [[Conway's Game of Life|Life]] traveled either orthogonally (only horizontal or vertical displacement) or diagonally (equal horizontal and vertical displacement) at one of the twelve known speeds; Spaceships traveling in other directions and at different speeds have been constructed in other two dimensional [[cellular automaton|cellular automata]],<ref>{{cite web|url=http://fano.ics.uci.edu/ca/ |title=Gliders in Life-Like Cellular Automata |publisher=David Eppstein|accessdate=April 18, 2009}}</ref> and it is known that Life has spaceships that travel in all rational directions at arbitrarily slow speeds (see [[universal constructor]]).

==History==

The four smallest spaceships in life, the [[glider]], [[lightweight spaceship]], [[middleweight spaceship]] and [[heavyweight spaceship]], were all found by hand in [[:Category:patterns found in 1970|1970]]. For almost twenty years spaceship development was limited to adding [[Tagalong|tagalongs]] to the known [[c/2 orthogonal|c/2]] spaceships. Significant advances in spaceship technology came in [[:Category:patterns found in 1989|1989]], when [[Dean Hickerson]] began using [[Computer search|automated searches]] based on a depth-first backtracking algorithm. These searches found orthogonal spaceships with speeds of [[c/3 orthogonal|c/3]], [[c/4 orthogonal|c/4]], and [[2c/5 orthogonal|2c/5]], as well as the first spaceship other than the glider to travel at the speed of [[c/4 diagonal|c/4]] diagonally, dubbed the [[big glider]]. Hickerson also found several ways to combine [[switch engine]]s to create the first diagonal [[c/12 diagonal|c/12]] spaceships, named [[Cordership]]s in honour of [[Charles Corderman]]. The next spaceship speed to be discovered was that of the orthogonal [[c/5 orthogonal|c/5]] [[snail]], found by [[Tim Coe]] in [[:Category:patterns found in 1996|1996]], with a program he had designed using breadth-first searching, and which could split tasks between multiple CPUs.<ref>{{cite web|url=http://www.radicaleye.com/lifepage/patterns/p5ss.html |title=c/5 Orthogonal spaceship |author=Tim Coe |publisher=Paul's Page of Conway's Life Miscellany |accessdate=April 18, 2009}}</ref> In the following year [[David Bell]] found the much smaller c/5 [[spider]] using [[lifesrc]], a program based on Hickerson's search algorithm.<ref>{{cite web|url=http://radicaleye.com/lifepage/patterns/newc5/newc5.html |title=New c/5 spaceship |author=David Bell |publisher=Paul's Page of Conway's Life Miscellany |accessdate=April 18, 2009}}</ref>

In March of [[:Category:patterns found in 1998|1998]] [[David Eppstein]] created [[gfind]], a program that uses iterative deepening depth-first searching,<ref>{{cite web|url=http://arxiv.org/PS_cache/cs/pdf/0004/0004003v2.pdf |title=Searching for Spaceships (PDF) |author=David Eppstein |accessdate=April 18, 2009}}</ref> and in [[:Category:patterns found in 2000|2000]] he used this program to find the first spaceship that travels at the speed of [[2c/7 orthogonal|2c/7]] orthogonally, the [[weekender]]. A search by [[Paul Tooke]] using the same program found the first [[c/6 orthogonal|c/6]] orthogonal spaceship, the [[dragon]], later that year. Also in 2000, [[Jason Summers]] found the first [[c/5 diagonal|c/5]] diagonal spaceship using David Bell's lifesrc program.

In [[:Category:patterns found in 2004|2004]] [[Gabriel Nivasch]], with the help of Jason Summers and David Bell, finished construction on the [[caterpillar]], the first known orthogonal [[17c/45 orthogonal|17c/45]] spaceship, which made use of the [[17c/45 reaction]].

In May, [[:Category:patterns found in 2010|2010]] [[Andrew J. Wade]] created a universal constructor-based spaceship, [[Gemini]], which travels at a speed of (5120,1024)c/33699586.<ref>{{cite web|url=http://pentadecathlon.com/lifeNews/2010/05/oblique_life_spaceship_created.html|title=Oblique Life spaceship created|date=May 19, 2010|work=Game of Life News|author=Adam P. Goucher|accessdate=May 21, 2010}}</ref> This was the first explicitly constructed spaceship in Life to travel in an [[Types_of_spaceships#Knightship|oblique]] direction, and also yielded the first explicit method of constructing arbitrarily slow spaceships.

[[Image:weekender_small.gif|framed|right|David Eppstein's weekender]]

{| class="wikitable"
|-
! Speed
! Direction
! First discovered
! Discoverer
! Year of discovery
|-
! c/4
| diagonal
| [[glider]]
| [[Richard Guy]]
| [[:Category:Patterns found in 1970|1970]]
|-
! c/5
| diagonal
| [[295P5H1V1]]
| [[Jason Summers]]
| [[:Category:Patterns found in 2000|2000]]
|-
! c/6
| diagonal
| [[seal]]
| [[Nicolay Beluchenko]]
| [[:Category:Patterns found in 2005|2005]]
|-
! c/7
| diagonal
| [[83P7H1V1]]
| [[Matthias Merzenich]]
| [[:Category:Patterns found in 2011|2011]]
|-
! c/12
| diagonal
| [[13-engine Cordership]]
| [[Dean Hickerson]]
| [[:Category:Patterns found in 1991|1991]]
|-
! colspan="5" |
|-
! c/2
| orthogonal
| [[lightweight spaceship]]
| [[John Conway]]
| [[:Category:Patterns found in 1970|1970]]
|-
! c/3
| orthogonal
| [[25P3H1V0.2]]
| [[Dean Hickerson]]
| [[:Category:Patterns found in 1989|1989]]
|-
! c/4
| orthogonal
| [[119P4H1V0]]
| [[Dean Hickerson]]
| [[:Category:Patterns found in 1989|1989]]
|-
! 2c/5
| orthogonal
| [[44P5H2V0]]
| [[Dean Hickerson]]
| [[:Category:Patterns found in 1991|1991]]
|-
! c/5
| orthogonal
| [[snail]]
| [[Tim Coe]]
| [[:Category:Patterns found in 1996|1996]]
|-
! c/6
| orthogonal
| [[dragon]]
| [[Paul Tooke]]
| [[:Category:Patterns found in 2000|2000]]
|-
! 2c/7
| orthogonal
| [[weekender]]
| [[David Eppstein]]
| [[:Category:Patterns found in 2000|2000]]
|-
! 17c/45
| orthogonal
| [[caterpillar]]
| [[Gabriel Nivasch]]
| [[:Category:Patterns found in 2004|2004]]
|-
! colspan="5" |
|-
! 2560c/16849793
| slope 5
| [[Gemini]]
| [[Andrew J. Wade]]
| [[:Category:Patterns found in 2010|2010]]
|-
! colspan="5" |
|-
! 2048c/17783745
| slope 2
| [http://www.conwaylife.com/forums/viewtopic.php?f=2&t=406&start=25 Gemini 2]
| [[Dave Greene]]
| [[:Category:Patterns found in 2010|2010]]
|}

==Spaceship types==
{{main|Types of spaceships|Spaceship types}}
Although Spaceships are most commonly categorized by their speed and direction, other categorizations have been applied to spaceships based on their appearances, components, or other properties. One such categorization is the symmetry of spaceships: spaceships can be bilaterally symmetric, Such as Tim Coe's snail, may exhibit [[Types_of_spaceships#Glide_symmetric_spaceship|glide symmetry]], such as the glider, or may be asymmetric, such as the caterpillar. Other, somewhat subjective categorizations have also been made, such as [[greyship]]s, spaceships filled with large amounts of static, live cells, or [[Types_of_spaceships#Smoking_ship|smoking ships]], which produce large [[spark]]s, a notable example being the [[schick engine]]. A spaceship may also support other components which would not function as spaceships on their own. Given a freestanding spaceship, such additional components are often referred to as [[tagalong|tagalongs]]; perhaps even pushalongs. Unstable spaceships immersed in a sustaining cloud are known as [[Types_of_spaceships#Flotilla|flotillae]]. A well known example is the [[overweight spaceship]], which is unstable on its own but may be 'escorted' by two smaller spaceships.

[[Image:Greyship2_H_Holzwart.png|framed|right|A greyship found by [[Hartmut Holzwart]]]]

{| class="wikitable"
|-
! Speed
! Direction
! Smallest known
! Minimum # of [[cell]]s
|-
! c/4
| diagonal
| [[glider]]
| [[:Category:Patterns with 5 cells|5]]
|-
! c/5
| diagonal
| [[58P5H1V1]]
| [[:Category:Patterns with 58 cells|58]]
|-
! c/6
| diagonal
| [[77P6H1V1]]
| [[:Category:Patterns with 77 cells|77]]
|-
! c/7
| diagonal
| [[Lobster_(spaceship)|Lobster]]
| [[:Category:Patterns with 83 cells|83]]
|-
! c/12
| diagonal
| [[4-engine Cordership]]
| [[:Category:Patterns with 134 cells|134]]
|-
! colspan="4" |
|-
! c/2
| orthogonal
| [[lightweight spaceship]]
| [[:Category:Patterns with 9 cells|9]]
|-
! c/3
| orthogonal
| [[25P3H1V0.1]], [[25P3H1V0.2]]
| [[:Category:Patterns with 25 cells|25]]
|-
! c/4
| orthogonal
| [[46P4H1V0]]
| [[:Category:Patterns with 46 cells|46]]
|-
! 2c/5
| orthogonal
| [[30P5H2V0]]
| [[:Category:Patterns with 30 cells|30]]
|-
! c/5
| orthogonal
| [[spider]]
| [[:Category:Patterns with 58 cells|58]]
|-
! c/6
| orthogonal
| [[56P6H1V0]]
| [[:Category:Patterns with 56 cells|56]]
|-
! 2c/7
| orthogonal
| [[weekender]]
| [[:Category:Patterns with 36 cells|36]]
|-
! 17c/45
| orthogonal
| [[caterpillar]]
| [[:Category:Patterns with 1000 or more cells|11,880,063]]
|-
! colspan="5" |
|-
! 2560c/16849793
| slope 5
| [[Gemini]]
| [[:Category:Patterns with 1000 or more cells|846,278]]
|-
! colspan="5" |
|-
! 2048c/17783745
| slope 2
| colspan="2" | [http://www.conwaylife.com/forums/viewtopic.php?f=2&t=406&start=25a Gemini 2]
|}

==See also==
*[[:Category:Spaceships|List of spaceships]]
*[[Spaceship terminology]]
*[[Types of spaceships]]
*[[Spaceship flotilla]]

==Notes==
<references/>

==External links==
{{LinkLexicon|filename=lex_s.htm#spaceship|patternname=Spaceship}}
{{LinkWeisstein|filename=Spaceship.html|patternname=Spaceship}}

Talk:Lobster

2011-09-14T16:38:49Z

Scotgot: Lobster seems to be used already. :(

Karel's p177

2011-09-08T20:24:42Z

Scotgot:

{{Oscillator|name=104P177|pname=104p177|c=104|p=177|bx=62|by=62|h=215.3|v=1.00|discoverer=Karel Suhajda|discoveryear=2007|animated=true|rle=true|life105=true|life106=true|plaintext=true|synthesis=24|synthesisRLE=true}}
'''104P177''' is a [[period]] [[:Category:oscillators with period 177|177]] [[oscillator]] discovered by [[Karel Suhajda]] in June [[:Category:patterns found in 2007|2007]].<ref>{{CiteSummersPattern|name=all-osc}}</ref> In terms of its minimum population of [[:Category:patterns with 104 cells|104]] [[cell]]s, it is the smallest known period 177 oscillator. It can serve as a 90° or 180° degree reflector, and with the correct [[phase|phasing]], a glider can pass through it unharmed. On March 21, [[:Category:patterns found in 2009|2009]] [[Jason Summers]] found a [[:Category:patterns that can be constructed with 24 gliders|24]]-[[glider]] [[synthesis]] of this oscillator.

==Image gallery==
{|
{| class="wikitable"
|[[Image:104p177_reactions.png|framed|left|Several reactions involving 104P177 {{JavaRLE|104p177reactions}}]]
||[[Image:P177_anim.gif‎‎|framed|left]]
|}
|}

==References==
<references/>

==External links==
*[http://pentadecathlon.com/lifeNews/2009/05/glider_construction_of_period.html Glider Construction of Period 177 Oscillator]

[[Category:Patterns with D4 symmetry]]

P124 lumps of muck hassler

2011-09-06T20:03:17Z

Scotgot:

{{Oscillator|name=P124 lumps of muck hassler|pname=p124lumpsofmuckhassler|c=146|p=156|bx=39|by=38|h=78.71|v=0.82|discoverer=Dean Hickerson|discoveryear=1994|nofile=true}}
'''P124 lumps of muck hassler''' is a [[period]] [[:Category:oscillators_with_period_124|124]] oscillator discovered by [[Dean Hickerson]] on July 31, [[:Category:Patterns_found_in_1994|1994]]. It opperates by [[hassle|Hassling]] a [[lumps of muck]] pattern in two different possitions.

This oscillator was reduced in size in April, 2010 by Dave Buckingham using two [[Blocked_p4-3|Blocked p4-3]] oscillators.

==Image gallery==
{|
|-
|[[Image:P124_LoM_anim.gif‎|framed|left]]
|}

File:P124 LoM anim.gif

2011-09-06T20:01:59Z

Scotgot:

Lumps of muck

2011-09-02T19:12:06Z

Scotgot: /* See also */ hassler

'''Lumps of muck''' (or '''LoM''') is a term used to describe the common evolutionary sequence that leads to the [[blockade]]. It generally refers to any stage in the evolution of the [[stairstep hexomino]].

==Image gallery==
{|
|-
|[[Image:LumpsOfMuck_anim.gif|framed|left]]
|}

==See also==
*[[35P52]]
*[[Bricklayer]]
*[[P124 lumps of muck hassler]]

==External links==
{{LinkLexicon|lex_l.htm#lumpsofmuck}}
{{LinkWeisstein|LumpsofMuck.html}}
{{Glossary}}

Oscillator

2011-09-02T19:09:34Z

Scotgot: /* Important oscillators by period */ p124

{{Glossary}}
An '''oscillator''' is a [[pattern]] that is a [[predecessor]] of itself. That is, it is a pattern that repeats itself after a fixed number of [[generation]]s (known as its [[period]]). The term is usually restricted to finite patterns that are not [[still life]]s, though still lifes may be thought of as oscillators with period 1. An oscillator is divided into a [[rotor]] and a [[stator]].

[[cellular automaton|Cellular automaton]] theory recognizes shift periodicity, which refers to a configuration reappearing in shifted form after a lapse of one or more generations. Without the shift, it is an oscillator, but if it moves it would be called a [[glider]] or [[spaceship]]. Strictly speaking "glider" means the little figure so prevalent in [[Conway's Game of Life]], but the more general usage has now become popular.
==Important oscillators by period==
A list of the first-discovered oscillator of each period, as well the current smallest-known oscillator of that period, is provided here. Note that only non-trivial oscillators are considered here, in the sense that there must be at least one [[cell]] that oscillates at the full period. In some cases, it is not known for certain what the first-discovered oscillator of a given period is, and in such situations all possible candidates are listed.

<table border="0" cellpadding="0" cellspacing="0" width="100%"><tr><td align="center" width="50%">
{| class="wikitable"
|-
! Period
! First discovered
! Discoverer
! Year of discovery
|-
! [[:Category:Oscillators with period 2|2]]
| [[blinker]]
| [[:Category:Patterns found by John Conway|John Conway]]
| [[:Category:Patterns found in 1970|1970]]
|-
! [[:Category:Oscillators with period 3|3]]
| [[pulsar]]
| John Conway
| 1970
|-
! [[:Category:Oscillators with period 4|4]]
| [[pinwheel]]
| [[:Category:Patterns found by Simon Norton|Simon Norton]]
| 1970
|-
! [[:Category:Oscillators with period 5|5]]
| [[octagon 2]]
| [[:Category:Patterns found by Sol Goodman|Sol Goodman]], [[:Category:Patterns found by Arthur Taber|Arthur Taber]]
| [[:Category:Patterns found in 1971|1971]]
|-
! [[:Category:Oscillators with period 6|6]]
| [[$rats]]
| [[:Category:Patterns found by David Buckingham|David Buckingham]]
| [[:Category:Patterns found in 1972|1972]]
|-
! [[:Category:Oscillators with period 7|7]]
| [[burloaferimeter]]
| David Buckingham
| 1972
|-
! [[:Category:Oscillators with period 8|8]]
| [[figure eight]]
| Simon Norton
| 1970
|-
! [[:Category:Oscillators with period 9|9]]
| [[worker bee]]
| David Buckingham
| 1972
|-
! [[:Category:Oscillators with period 10|10]]
| [[42P10.1]]
| David Buckingham
| ≤[[:Category:Patterns found in 1976|1976]]
|-
! [[:Category:Oscillators with period 11|11]]
| [[38P11.1]]
| David Buckingham
| [[:Category:Patterns found in 1977|1977]]
|-
! [[:Category:Oscillators with period 12|12]]
| [[dinner table]]
| [[Robert Wainwright]]
| [[:Category:Patterns found in 1972|1972]]
|-
! [[:Category:Oscillators with period 13|13]]
| [[65P13.1]]
| David Buckingham
| 1976
|-
! [[:Category:Oscillators with period 14|14]]
| [[tumbler]]
| George Collins, Jr.
| 1970
|-
! [[:Category:Oscillators with period 15|15]]
| [[pentadecathlon]]
| John Conway
| 1970
|-
! [[:Category:Oscillators with period 16|16]]
| [[two pre-L hasslers]]
| Robert Wainwright
| [[:Category:Patterns found in 1983|1983]]
|-
! [[:Category:Oscillators with period 17|17]]
| [[54P17.1]]
| [[:Category:Patterns found by Dean Hickerson|Dean Hickerson]]
| [[:Category:Patterns found in 1997|1997]]
|-
! [[:Category:Oscillators with period 18|18]]
| [[117P18]]
| David Buckingham
| ≤[[:Category:Patterns found in 1991|1991]]
|-
! class="red_td" | 19
| class="red_td" colspan="3" | ''None found''
|-
! [[:Category:Oscillators with period 20|20]]
| [[145P20]]
| [[Noam Elkies]]
| [[:Category:Patterns found in 1995|1995]]
|-
! [[:Category:Oscillators with period 21|21]]
| [[124P21]]
| Robert Wainwright
| 1995
|-
! [[:Category:Oscillators with period 22|22]]
| [[168P22.1]]
| Noam Elkies
| 1997
|-
! class="red_td" | 23
| class="red_td" colspan="3" | ''None found''
|-
! [[:Category:Oscillators with period 24|24]]
| [[186P24]]
| [[Bill Gosper]]
| [[:Category:Patterns found in 1994|1994]]
|-
! [[:Category:Oscillators with period 25|25]]
| [[134P25]]
| Noam Elkies
| 1994
|-
! [[:Category:Oscillators with period 26|26]]
| [[pre-pulsar shuttle 26]]
| David Buckingham
| 1983
|-
! [[:Category:Oscillators with period 27|27]]
| [[123P27.1]]
| Noam Elkies
| [[:Category:Patterns found in 2002|2002]]
|-
! [[:Category:Oscillators with period 28|28]]
| [[Newshuttle]]
| David Buckingham
| [[:Category:patterns found in 1973|1973]]
|-
! [[:Category:Oscillators with period 29|29]]
| [[pre-pulsar shuttle 29]]
| David Buckingham
| [[:Category:patterns found in 1980|1980]]
|-
! [[:Category:Oscillators with period 30|30]]
| [[queen bee shuttle]]
| Bill Gosper
| 1970
|-
! [[:Category:oscillators with period 31|31]]
| [[48P31]]
| [[Matthias Merzenich]]
| [[:Category:patterns found in 2010|2010]]
|-
! [[:Category:Oscillators with period 32|32]]
| [[gourmet]]
| David Buckingham
| [[:Category:Patterns found in 1978|1978]]
|-
! [[:Category:Oscillators with period 33|33]]
| [[258P3 on Achim's p11]]
| Noam Elkies, [[:Category:Patterns found by Achim Flammenkamp|Achim Flammenkamp]]
| 1997
|-
! class="red_td" | 34
| class="red_td" colspan="3" | ''No non-trivial examples found''
|-
! [[:Category:Oscillators with period 35|35]]
| [[P35 beehive hassler]]
| Dean Hickerson
| 1995
|-
! [[:Category:oscillators with period 36|36]]
| [[P36 toad hassler]]
| Robert Wainwright
| 1984
|-
! [[:Category:Oscillators with period 37|37]]
| [[124P37]]
| [[:Category:Patterns found by Nicolay Beluchenko|Nicolay Beluchenko]]
| [[:Category:Patterns found in 2009|2009]]
|-
! class="red_td" | 38
| class="red_td" colspan="3" | ''None found''
|-
! [[:Category:Oscillators with period 39|39]]
| [[134P39.1]]
| David Buckingham, Noam Elkies
| [[:Category:Patterns found in 2000|2000]]
|-
! [[:Category:oscillators with period 40|40]]
| [[P40 B-heptomino shuttle]]
| David Buckingham
| ≤1991
|-
! class="red_td" | 41
| class="red_td" colspan="3" | ''None found''
|-
! [[:Category:oscillators with period 42|42]]
| [[P42 glider shuttle]]
| Noam Elkies
| 1994
|-
! class="red_td" | 43
| class="red_td" colspan="3" | ''None found''
|-
! [[:Category:oscillators with period 44|44]]
| [[P44 pi-heptomino hassler]]
| David Buckingham
| 1992
|-
! [[:Category:Oscillators with period 45|45]]
| [[pentadecathlon on snacker]]
| ?
| ≤1995
|-
! [[:Category:Oscillators with period 46|46]]
| [[twin bees shuttle]]
| Bill Gosper
| 1971
|-
! [[:Category:oscillators with period 47|47]]
| [[pre-pulsar shuttle 47]]
| David Buckingham
| [[:Category:patterns found in 1982|1982]]
|-
! [[:Category:oscillators with period 48|48]]
| [[P48 toad hassler]]
| Bill Gosper
| 1994
|-
! [[:Category:Oscillators with period 49|49]]
| [[p49 glider shuttle]]
| Noam Elkies
| [[:Category:Patterns found in 1999|1999]]
|-
! [[:Category:oscillators with period 50|50]]
| [[P50 glider shuttle]]
| Dean Hickerson
| 1992
|-
! [[:Category:Oscillators with period 51|51]]
| [[112P51]]
| Nicolay Beluchenko
| 2009
|-
! [[:Category:Oscillators with period 52|52]]
| [[35P52]]
| David Buckingham
| 1977
|-
! class="red_td" | 53
| class="red_td" colspan="3" | ''None found''
|-
! [[:Category:Oscillators with period 54|54]]
| [[P54 shuttle]]
| David Buckingham
| 1974
|-
! [[:Category:Oscillators with period 55|55]]
| [[pre-pulsar hassler 55]]
| David Buckingham
| [[:Category:patterns found in 1986|1986]]
|-
! [[:Category:oscillators with period 56|56]]
| [[P56 B-heptomino shuttle]]
| David Buckingham
| ≤1991
|-
! [[:Category:Oscillators with period 57|57]]
| [[P57 Herschel loop 1]]
| [[:Category:patterns found by Dietrich Leithner|Dietrich Leithner]]
| 1997
|-
! [[:Category:oscillators with period 58|58]]
| [[P58 toadsucker]]
| Bill Gosper
| 1994
|-
! [[:Category:oscillators with period 59|59]]
| [[P59 Herschel loop 1]]
| David Buckingham
| 1997
|-
! [[:Category:oscillators with period 60|60]]
| [[P60 glider shuttle]]
| David Buckingham
| ≤ 1971
|-
! [[:Category:oscillators with period 61|61]]
| [[P61 Herschel loop 1]]
| David Buckingham
| [[:Category:patterns found in 1996|1996]]
|-
! [[:Category:Oscillators with period 72|72]]
| [[47P72]]
| Robert Wainwright
| 1990
|-
! [[:Category:oscillators with period 88|88]]
| [[P44 pi-heptomino hassler#Image gallery|P88 pi-heptomino hassler]]
| Dean Hickerson
| 1994
|-
! [[:Category:Oscillators with period 100|100]]
| [[Centinal]]
| Bill Gosper
| ≤[[:Category:patterns found in 1987|1987]]
|-
! [[:Category:Oscillators with period 110|110]]
| [[P110 traffic jam]]
| Bill Gosper
| 1994
|-
! [[:Category:Oscillators with period 124|124]]
| [[P124 lumps of muck hassler]]
| Dean Hickerson
| 1994
|-
! [[:Category:Oscillators with period 132|132]]
| [[P132 pi-heptomino hassler]]
| David Buckingham
| ≤1994
|-
! [[:Category:Oscillators with period 144|144]]
| [[Achim's p144]]
| Achim Flammenkamp
| 1994
|-
! [[:Category:Oscillators with period 156|156]]
| [[P156 Hans Leo hassler]]
| Noam Elkies
| 1995
|-
! [[:Category:Oscillators with period 200|200]]
| [[P200 traffic jam]]
| Bill Gosper
| 1994
|}</td><td align="center" width="50%">
{| class="wikitable"
|-
! Period
! Smallest known
! Minimum # of [[cell]]s
|-
! 2
| [[blinker]]
| [[:Category:Patterns with 3 cells|3]]
|-
! 3
| [[caterer]]
| [[:Category:Patterns with 12 cells|12]]
|-
! 4
| [[mazing]], [[mold]]
| [[:Category:Patterns with 12 cells|12]]
|-
! 5
| [[pseudo-barberpole]]
| [[:Category:Patterns with 15 cells|15]]
|-
! 6
| [[unix]]
| [[:Category:Patterns with 16 cells|16]]
|-
! 7
| [[28P7.1]], [[28P7.2]], [[burloaferimeter]]
| [[:Category:Patterns with 28 cells|28]]
|-
! 8
| [[figure eight]]
| [[:Category:Patterns with 12 cells|12]]
|-
! 9
| [[29P9]]
| [[:Category:Patterns with 29 cells|29]]
|-
! 10
| [[24P10]]
| [[:Category:Patterns with 24 cells|24]]
|-
! 11
| [[38P11.1]]
| [[:Category:Patterns with 38 cells|38]]
|-
! 12
| [[dinner table]]
| [[:Category:Patterns with 33 cells|33]]
|-
! 13
| [[34P13]]
| [[:Category:Patterns with 34 cells|34]]
|-
! 14
| [[tumbler]]
| [[:Category:Patterns with 16 cells|16]]
|-
! 15
| [[pentadecathlon]]
| [[:Category:Patterns with 12 cells|12]]
|-
! 16
| [[Achim's p16]]
| [[:Category:Patterns with 32 cells|32]]
|-
! 17
| [[54P17.1]]
| [[:Category:Patterns with 54 cells|54]]
|-
! 18
| [[43P18]]
| [[:Category:Patterns with 43 cells|43]]
|-
! class="red_td" | 19
| class="red_td" colspan="2" | ''None found''
|-
! 20
| [[mold on fumarole]]
| [[:Category:Patterns with 30 cells|30]]
|-
! 21
| [[caterer on 44P7.2]]
| [[:Category:Patterns with 56 cells|56]]
|-
! 22
| [[36P22]]
| [[:Category:Patterns with 36 cells|36]]
|-
! class="red_td" | 23
| class="red_td" colspan="2" | ''None found''
|-
! 24
| [[caterer on figure eight]]
| [[:Category:Patterns with 24 cells|24]]
|-
! 25
| [[98P25]]
| [[:Category:Patterns with 98 cells|98]]
|-
! 26
| [[pre-pulsar shuttle 26]]
| [[:Category:Patterns with 200 cells|200]]
|-
! 27
| [[56P27]]
| [[:Category:Patterns with 56 cells|56]]
|-
! 28
| [[mold on 41P7.2]]
| [[:Category:Patterns with 53 cells|53]]
|-
! 29
| [[pre-pulsar shuttle 29]]
| [[:Category:Patterns with 54 cells|54]]
|-
! 30
| [[queen bee shuttle]]
| [[:Category:Patterns with 20 cells|20]]
|-
! 31
| [[48P31]]
| [[:Category:patterns with 48 cells|48]]
|-
! 32
| [[gourmet]]
| [[:Category:Patterns with 66 cells|66]]
|-
! 33
| [[92P33.1]]
| [[:Category:Patterns with 92 cells|92]]
|-
! class="red_td" | 34
| class="red_td" colspan="2" | ''No non-trivial examples found''
|-
! 35
| [[50P35]]
| [[:Category:patterns with 50 cells|50]]
|-
! 36
| [[22P36]]
| [[:Category:patterns with 22 cells|22]]
|-
! 37
| [[124P37]]
| [[:Category:Patterns with 124 cells|124]]
|-
! class="red_td" | 38
| class="red_td" colspan="2" | ''None found''
|-
! 39
| [[caterer on 34P13]]
| [[:Category:Patterns with 46 cells|46]]
|-
! 40
| [[26P40]]
| [[:Category:patterns with 26 cells|26]]
|-
! class="red_td" | 41
| class="red_td" colspan="2" | ''None found''
|-
! 42
| [[unix on 41P7.2]]
| [[:Category:Patterns with 57 cells|57]]
|-
! class="red_td" | 43
| class="red_td" colspan="2" | ''None found''
|-
! 44
| [[mold on 36P22]]
| [[:Category:patterns with 50 cells|50]]
|-
! 45
| [[pentadecathlon on thumb 1]]
| [[:Category:patterns with 48 cells|48]]
|-
! 46
| [[twin bees shuttle]]
| [[:Category:patterns with 28 cells|28]]
|-
! 47
| [[pre-pulsar shuttle 47]]
| [[:Category:patterns with 84 cells|84]]
|-
! 48
| [[69P48]]
| [[:Category:patterns with 69 cells|69]]
|-
! 49
| [[p49 glider shuttle]]
| [[:Category:Patterns with 400 cells|400]]
|-
! 50
| [[P50 traffic jam]]
| [[:Category:patterns with 92 cells|92]]
|-
! 51
| [[112P51]]
| [[:Category:Patterns with 112 cells|112]]
|-
! 52
| [[35P52]]
| [[:Category:Patterns with 35 cells|35]]
|-
! class="red_td" | 53
| class="red_td" colspan="2" | ''None found''
|-
! 54
| [[P54 shuttle]]
| [[:Category:Patterns with 48 cells|48]]
|-
! 55
| [[fumarole on Achim's p11]]
| [[:Category:patterns with 90 cells|90]]
|-
! 56
| [[P56 B-heptomino shuttle]]
| [[:Category:patterns with 45 cells|45]]
|-
! 57
| [[P57 Herschel loop 1]]
| [[:Category:patterns with 1000 or more cells|3004]]
|-
! 58
| [[P58 toadsucker]]
| [[:Category:patterns with 258 cells|258]]
|-
! 59
| [[P59_Herschel_loop_2|P59 Herschel loop 2]]
| 5822
|-
! 60
| [[mold on pentadecathlon]]
| [[:Category:patterns with 24 cells|24]]
|-
! 61
| [[P61 herschel loop 2]]
| 1596
|-
! 63
| [[snacker on 38P7.2]]
| [[:Category:patterns with 78 cells|78]]
|-
! 65
| [[fumarole on 34P13]]
| [[:Category:patterns with 52 cells|52]]
|-
! 66
| [[caterer on 36P22]]
| [[:Category:patterns with 48 cells|48]]
|-
! 70
| [[78P70]]
| [[:Category:patterns with 78 cells|78]]
|-
! 72
| [[47P72]]
| [[:Category:Patterns with 47 cells|47]]
|-
! 75
| [[6 bits]]
| [[:Category:Patterns with 49 cells|49]]
|-
! 88
| [[49P88]]
| [[:Category:patterns with 49 cells|49]]
|-
! 90
| [[fumarole on 43P18]]
| [[:Category:patterns with 61 cells|61]]
|-
! 96
| [[caterer on 68P32]]
| [[:Category:patterns with 80 cells|80]]
|-
! 99
| [[extended snacker on Achim's p11]]
| [[:Category:patterns with 124 cells|124]]
|-
! 100
| [[centinal]]
| [[:Category:Patterns with 70 cells|70]]
|-
! 104
| [[figure eight on 34P13]]
| [[:Category:Patterns with 46 cells|46]]
|-
! 105
| [[pentadecathlon on 37P7.1]]
| [[:Category:patterns with 49 cells|49]]
|-
! 108
| [[T-nosed p4 on 56P27]]
| [[:Category:patterns with 87 cells|87]]
|-
! 110
| [[pseudo-barberpole on 36P22]]
| [[:Category:Patterns with 51 cells|51]]
|-
! 120
| [[figure eight on pentadecathlon]]
| [[:Category:Patterns with 24 cells|24]]
|-
! 124
| [[P124 lumps of muck hassler]]
| [[:Category:Patterns with 146 cells|146]]
|-
! 138
| [[Gabriel's p138]]
| [[:Category:patterns with 36 cells|36]]
|-
! 144
| [[Achim's p144]]
| [[:Category:Patterns with 42 cells|42]]
|-
! 156
| [[92P156]]
| [[:Category:Patterns with 92 cells|92]]
|-
! 177
| [[104P177]]
| [[:Category:patterns with 104 cells|104]]
|-
! 312
| [[60P312]]
| [[:Category:Patterns with 60 cells|60]]
|}
</td></tr></table>

==See also==
*[[List of common oscillators]]
*[[:Category:Oscillators|List of oscillators]]
*[[Omniperiodic]]

==External links==
{{LinkLexicon|lex_o.htm#oscillator}}
{{LinkWeisstein|Oscillator.html}}

Blocked p4-3

2011-09-02T19:03:58Z

Scotgot: /* See also */ link to LOM oscillator

{{Oscillator|name=Blocked p4-3|pname=blockedp43|c=48|p=4|bx=21|by=9|discoverer=Adam P. Goucher|discoveryear=2010|rle=true|life105=true|life106=true|plaintext=true|v=0.52}}
'''Blocked p4-3''' is a [[period]] [[:Category:oscillators with period 4|4]] [[oscillator]] discovered by [[Adam P. Goucher]] in April [[:Category:patterns found in 2010|2010]]. The oscillator was inspired by [[Ellison_P4_HW_Emulator|Ellison p4 HW emulator]] and [[Ellison_P4_HW_Emulator_Hybrid|Ellison p4 HW emulator hybrid]].

==See also==
*[[Blocked_p4_t-nose|Blocked p4 t-nose]]
*[[Blocked_p4_t-nose_ hybrid|Blocked p4 t-nose hybrid]]
*[[Blocked_p4-1|Blocked p4-1]]
*[[Blocked_p4-2|Blocked p4-2]]
*[[Blocked_p4-4|Blocked p4-4]]
*[[Blocked_p4-5|Blocked p4-5]]
*[[Period-44_traffic_light_hassler|Period-44 traffic light hassler]]
*[[P32 blinker hassler]]
*[[P32 blinker hassler 2]]
*[[P124_lumps_of_muck_hassler]]
[[Category:Patterns with bilateral symmetry]]

File:P124lumpsofmuckhassler.png

2011-09-02T19:02:44Z

Scotgot:

P124 lumps of muck hassler

2011-09-02T19:01:26Z

Scotgot: Created page with "{{Oscillator|name=P124 lumps of muck hassler|pname=p124lumpsofmuckhassler|c=146|p=156|bx=39|by=38|h=78.71|v=0.82|discoverer=Dean Hickerson|discoveryear=1994|nofile=true}} '''P124..."

C/7 diagonal

2011-08-30T16:39:35Z

Scotgot:

{{speed|speed=c/7 diagonal|image=SeventhDiag|ss=yes}}
'''C/7 diagonal''' is a diagonal [[speed]] that is equivalent to one seventh of the [[speed of light]].

==Spaceships==
In August, [[:Category:patterns found in 2011|2011]] [[:Category:Patterns found by Matthias Merzenich|Matthias Merzenich]] discovered the first c/7 diagonal [[spaceship]]. It is unnamed. Merzenich then discovered a [[pushalong]] for this spaceship.

==Puffers==
No c/7 diagonal [[puffer]] technology is currently known.

==See also==
*[[:Category:speeds|List of important speeds]]

Talk:C/7 diagonal

2011-08-30T16:35:28Z

Scotgot: Created page with "x = 26, y = 26, rule = B3/S23 12b3o$12bo$13bo2b2o$16b2o$12b2o$13b2o$12bo2bo2$14bo2bo$14bo3bo$15b3obo $20bo$2o2bobo13bo$obob2o13bo$o4bo2b2o13b2o$6bo3bo6b2o2b2o2bo$2b2o6bo6b o2b..."

x = 26, y = 26, rule = B3/S23

12b3o$12bo$13bo2b2o$16b2o$12b2o$13b2o$12bo2bo2$14bo2bo$14bo3bo$15b3obo

$20bo$2o2bobo13bo$obob2o13bo$o4bo2b2o13b2o$6bo3bo6b2o2b2o2bo$2b2o6bo6b

o2bo$2b2o4bobo4b2o$9bo5bo3bo3bo$10bo2bo4b2o$11b2o3bo5bobo$15bo8b2o$15b

o4bo$14bo3bo$14bo5b2o$15bo5bo!

Is 'lobster' good name for this? A lobster is slower than a seal and this pattern invokes large claws leading the way. --[[User:Scotgot|Scot Ellison]] 11:35, 30 August 2011 (CDT)

C/7 diagonal

2011-08-30T16:33:49Z

Scotgot: /* Spaceships */ no name sentence

{{speed|speed=c/7 diagonal|image=SeventhDiag|ss=yes}}
'''C/7 diagonal''' is a diagonal [[speed]] that is equivalent to one seventh of the [[speed of light]].

==Spaceships==
In August, [[:Category:patterns found in 2011|2011]] [[Matthias Merzenich]] discovered the first c/7 diagonal [[spaceship]]. It is unnamed. Merzenich then discovered a [[pushalong]] for this spaceship.

==Puffers==
No c/7 diagonal [[puffer]] technology is currently known.

==See also==
*[[:Category:speeds|List of important speeds]]

C/7 diagonal

2011-08-30T16:32:33Z

Scotgot: Created page with "{{speed|speed=c/7 diagonal|image=SeventhDiag|ss=yes}} '''C/7 diagonal''' is a diagonal speed that is equivalent to one seventh of the speed of light. ==Spaceships== In A..."

{{speed|speed=c/7 diagonal|image=SeventhDiag|ss=yes}}
'''C/7 diagonal''' is a diagonal [[speed]] that is equivalent to one seventh of the [[speed of light]].

==Spaceships==
In August, [[:Category:patterns found in 2011|2011]] [[Matthias Merzenich]] discovered the first c/7 diagonal [[spaceship]]. Merzenich then discovered a [[pushalong]] for this spaceship.

==Puffers==
No c/7 diagonal [[puffer]] technology is currently known.

==See also==
*[[:Category:speeds|List of important speeds]]

Beluchenko's other p37

2011-08-30T16:20:16Z

Scotgot: fixed spelling on Matthias

{{Oscillator|name=132P37|pname=132P37|c=132|p=37|bx=47|by=47|h=142.5|discoverer=Nicolay Beluchenko|discoveryear=2010|animated=true|rle=true|life106=true|life105=true|plaintext=true|v=0.97}}

'''132P37''' is an unnamed [[period]]-[[:Category:oscillators with period 37|37]] [[oscillator]] discovered by [[Nicolay Beluchenko]] on March 21, [[:Category:patterns found in 2010|2010]]. It is the second unique period-37 oscillator to be found, after [[124P37]], and relies on a completely unrelated mechanism.

[[Matthias Merzenich]] noticed that it can [[reflector|reflect]] [[glider]]s in a variety of ways, including a 90° reaction. The 90° reaction allows a p37 glider loop to be built.

==Image gallery==
{|
|-
|[[Image:p37reflections.png|framed|left|132P37 reflecting gliders 180° and 90° {{JavaRLE|p37reflections}}]]
|}
[[Category:Patterns with S4 symmetry]]

Blocked p4-4

2011-08-16T20:39:50Z

Scotgot:

{{Oscillator|name=Blocked p4-4|pname=blockedp44|c=42|p=4|bx=19|by=10|discoverer=Matthias Merzenich|discoveryear=2010|v=0.59|nofile=true|h=25.5}}
'''Blocked p4-4''' is a [[period]] [[:Category:oscillators with period 4|4]] [[oscillator]] discovered by [[Matthias Merzenich]] in April [[:Category:patterns found in 2010|2010]]. It is used in the [[Period-48 pi hassler]] and the [[Pi orbital]].

==See also==
*[[Ellison_P4_HW_Emulator_Hybrid|Ellison p4 HW emulator hybrid]]
*[[Ellison_p4_HW_emulator|Ellison p4 HW emulator]]
*[[Blocked_p4_t-nose_ hybrid|Blocked p4 t-nose hybrid]]
*[[Blocked_p4_t-nose|Blocked p4 t-nose]]
*[[Blocked_p4-1|Blocked p4-1]]
*[[Blocked_p4-2|Blocked p4-2]]
*[[Blocked_p4-3|Blocked p4-3]]
*[[Blocked_p4-5|Blocked p4-5]]

Blocked p4-4

2011-08-16T20:38:54Z

Scotgot: /* See also */ add pi orbital link

{{Oscillator|name=Blocked p4-4|pname=blockedp44|c=42|p=4|bx=19|by=10|discoverer=Matthias Merzenich|discoveryear=2010|v=0.59|nofile=true|h=25.5}}
'''Blocked p4-4''' is a [[period]] [[:Category:oscillators with period 4|4]] [[oscillator]] discovered by [[Matthias Merzenich]] in April [[:Category:patterns found in 2010|2010]]. It is used in the [[Period-48 pi hassler]].

==See also==
*[[Ellison_P4_HW_Emulator_Hybrid|Ellison p4 HW emulator hybrid]]
*[[Ellison_p4_HW_emulator|Ellison p4 HW emulator]]
*[[Blocked_p4_t-nose_ hybrid|Blocked p4 t-nose hybrid]]
*[[Blocked_p4_t-nose|Blocked p4 t-nose]]
*[[Blocked_p4-1|Blocked p4-1]]
*[[Blocked_p4-2|Blocked p4-2]]
*[[Blocked_p4-3|Blocked p4-3]]
*[[Blocked_p4-5|Blocked p4-5]]
*[[Pi orbital]]

Pi orbital

2011-08-16T20:37:59Z

Scotgot:

{{Oscillator|name=Pi orbital|pname=piorbital|bx=59|by=59|h=270.7|p=168|c=305|discoverer=Noam Elkies|discoveryear=1995|life105=true|life106=true|plaintext=true|rle=true|animated=true|v=0.91}}
'''Pi orbital''' is a [[period]] [[:Category:Oscillators with period 168|168]] [[oscillator]] that was found by [[:Category:Patterns found by Noam Elkies|Noam Elkies]] in August [[:Category:Patterns found in 1995|1995]]. It works by using four [[crown]]s and four [[block]]s to turn a [[pi heptomino]] ninety degrees every 42 [[generation]]s. A second pi heptomino can be inserted to reduce the period to 84. On March 26, [[:Category:patterns found in 2009|2009]] [[Nicolay Beluchenko]] found a relatively small period [[:Category:Oscillators with period 12|12]] [[spark]]er that could replace the crowns. On April 6, [[:Category:patterns found in 2010|2010]] [[Matthias Merzenich]] the [[Blocked_p4-4|Blocked p4-4]]
period 4 oscillator that also supports the oscillator.

==Image gallery==
{|
|-
|[[Image:piorbit_gen27.png|framed|left|Generation 27 reveals the pi heptomino]]
|[[Image:piorbital_alt.png|framed|left|An alternate version of pi orbital using Nicolay Beluchenko's period 12 oscillator {{JavaRLE|alternatepiorbital|brief}}]]
|[[Image:P168.PNG‎|framed|left|form by Matthias Merzenich]]
|}

==See also==
*[[Gourmet]]
*[[Popover]]
*[[Pi portraitor]]

==External links==
*[http://www.argentum.freeserve.co.uk/lex_p.htm#piorbital Pi orbital] at the Life Lexicon

File:P168.PNG

2011-08-16T20:36:04Z

Scotgot:

P32 blinker hassler 2

2011-08-16T20:06:36Z

Scotgot:

{{Oscillator|name=P32 blinker hassler 2|pname=p32blinkerhassler2|p=32|c=112|h=64.5|bx=26|by=30|discoverer=Noam Elkies|discoveryear=2010|nofile=true|v=0.32}}
'''P32 blinker hassler 2''' is a [[period]] [[:Category:oscillators with period 32|32]] [[oscillator]] discovered by [[Noam Elkies]] in April [[:Category:patterns found in 2010|2010]]. It uses a [[Blocked p4-3]].

==See also==
*[[P32 blinker hassler]]

==Image gallery==
[[Image:P32_blinker_hassler_2B.PNG‎|thumb|left|Alternate form by Noam Elkies]]

Talk:P32 blinker hassler 2

2011-08-16T20:05:52Z

Scotgot:

x = 24, y = 30, rule = B3/S23

9b2o7b2o$9bo2b2ob2o2bo$10b2obobob2o$11bobobobo$11bob3obo$12b5o4$13b3o$

6b2o6bo$5bobo6bo$5b2o2$9b3o6b3o$9bobo6b3o$9b3o6b3o$21b3o$21b3o$21b3o2$

4bo3bobobo3bo$3bobo9bobo$3bobo9bobo$2obobob7obobob2o$2obo13bob2o$3bo

13bo$3bobo4bo4bobo$4b2o3bobo3b2o$10bo!

Alternate Form

x = 32, y = 29, rule = B3/S23

21bo$15b2o3bobo3b2o$14bobo4bo4bobo$14bo13bo$11b2obo13bob2o$11b2obobob

7obobob2o$14bobo9bobo$14bobo9bobo$15bo3bobobo3bo$6b2o$5bobo$5b2o2$9b3o

8b3o$9bobo8bobo$9b3o8b3o2$25b2o$24bobo$24b2o$4bo3bobobo3bo$3bobo9bobo$

3bobo9bobo$2obobob7obobob2o$2obo13bob2o$3bo13bo$3bobo4bo4bobo$4b2o3bob

o3b2o$10bo!

File:P32 blinker hassler 2B.PNG

2011-08-16T20:01:48Z

Scotgot: uploaded a new version of "File:P32 blinker hassler 2B.PNG"

Alternate form

File:P32 blinker hassler 2B.PNG

2011-08-16T19:52:25Z

Scotgot: Alternate form

Alternate form

P32 blinker hassler

2011-08-16T19:42:04Z

Scotgot: grammar

{{Oscillator|name=P32 blinker hassler|pname=p32blinkerhassler|p=32|c=75|h=38.5|bx=21|by=24|discoverer=Noam Elkies|discoveryear=2010|nofile=true|v=0.33}}
'''P32 blinker hassler''' is a [[period]] [[:Category:oscillators with period 32|32]] [[oscillator]] discovered by [[Noam Elkies]] in April [[:Category:patterns found in 2010|2010]]. It uses two [[Blocked p4-3]]s.

==Image gallery==
{| class="wikitable"
|-
| [[Image:P32 Blinker Hassler DB.PNG|thumb|left|David Buckingham version]] || [[Image:P32 blinker hassler orig.PNG|thumb|left|Original version by Noam Elkies]]

|}

==See also==
*[[P32 blinker hassler 2]]

Talk:P32 blinker hassler 2

2011-08-15T20:21:59Z

Scotgot: Created page with "x = 24, y = 30, rule = B3/S23 9b2o7b2o$9bo2b2ob2o2bo$10b2obobob2o$11bobobobo$11bob3obo$12b5o4$13b3o$ 6b2o6bo$5bobo6bo$5b2o2$9b3o6b3o$9bobo6b3o$9b3o6b3o$21b3o$21b3o$21b3o2$ 4bo..."

P32 blinker hassler

2011-08-15T19:54:03Z

Scotgot:

{{Oscillator|name=P32 blinker hassler|pname=p32blinkerhassler|p=32|c=75|h=38.5|bx=21|by=24|discoverer=Noam Elkies|discoveryear=2010|nofile=true|v=0.33}}
'''P32 blinker hassler''' is a [[period]] [[:Category:oscillators with period 32|32]] [[oscillator]] discovered by [[Noam Elkies]] in April [[:Category:patterns found in 2010|2010]]. It uses of two [[Blocked p4-3]]s.

==Image gallery==
{| class="wikitable"
|-
| [[Image:P32 Blinker Hassler DB.PNG|thumb|left|David Buckingham version]] || [[Image:P32 blinker hassler orig.PNG|thumb|left|Original version by Noam Elkies]]

|}

==See also==
*[[P32 blinker hassler 2]]

P32 blinker hassler

2011-08-15T19:53:41Z

Scotgot:

{{Oscillator|name=P32 blinker hassler|pname=p32blinkerhassler|p=32|c=75|h=38.5|bx=21|by=24|discoverer=Noam Elkies|discoveryear=2010|nofile=true|v=0.33}}
'''P32 blinker hassler''' is a [[period]] [[:Category:oscillators with period 32|32]] [[oscillator]] discovered by [[Noam Elkies]] in April [[:Category:patterns found in 2010|2010]]. It uses of two [[Blocked p4-3]]s.

==Image gallery==
{| class="wikitable"
|-
| [[Image:P32 Blinker Hassler DB.PNG|thumb|left|David Buckingham version]] || [[Image:P32 blinker hassler orig.PNG|thumb|left|Original version by Noam Elkies]]

|}

P32 blinker hassler 2

2011-08-15T19:53:13Z

Scotgot:

Blocked p4-3

2011-08-15T19:51:50Z

Scotgot:

File:P32blinkerhassler2.png

2011-08-15T19:50:47Z

Scotgot:

P32 blinker hassler 2

2011-08-15T19:50:23Z

Scotgot: Created page with "{{Oscillator|name=P32 blinker hassler 2|pname=p32blinkerhassler2|p=32|c=112|h=64.5|bx=26|by=30|discoverer=Noam Elkies|discoveryear=2010|nofile=true|v=0.32}} '''P32 blinker hassle..."

Merzenich's p31

2011-08-15T18:23:14Z

Scotgot: /* Image gallery */ add animation

{{Oscillator|name=48P31|pname=48p31|c=48|p=31|bx=24|by=21|h=59.6|discoverer=Matthias Merzenich|discoveryear=2010|animated=true|rle=true|life105=true|life106=true|plaintext=true|v=0.98}}
'''48P31''' is a [[period]]-[[:Category:oscillators with period 31|31]] [[oscillator]] found by [[Matthias Merzenich]] on November 5, [[:Category:patterns found in 2010|2010]], being the first oscillator of this period to be discovered. In terms of its [[:Category:patterns with 48 cells|48]] [[cell]]s, it is currentily the smallest known period-31 oscillator.

It is capable of reflecting gliders 90°, as shown below.
==Image gallery==
{| class="wikitable"
|-
| [[Image:p31reflection.png|framed|left|48P31 reflecting gliders 90° {{JavaRLE|p31reflection|brief}}]]
|| [[Image:31A.gif‎|framed|left]]
|}

File:31A.gif

2011-08-15T18:18:36Z

Scotgot:

File:LumpsOfMuck anim.gif

2011-08-15T18:17:15Z

Scotgot: uploaded a new version of "File:LumpsOfMuck anim.gif"

Blocked p4-3

2011-08-10T20:01:35Z

Scotgot: /* See also */

Blocked p4-3

2011-08-10T19:58:52Z

Scotgot: /* See also */ p32 blinker hassler

{{Oscillator|name=Blocked p4-3|pname=blockedp43|c=48|p=4|bx=21|by=9|discoverer=Adam P. Goucher|discoveryear=2010|rle=true|life105=true|life106=true|plaintext=true|v=0.52}}
'''Blocked p4-3''' is a [[period]] [[:Category:oscillators with period 4|4]] [[oscillator]] discovered by [[Adam P. Goucher]] in April [[:Category:patterns found in 2010|2010]]. The oscillator was inspired by [[Ellison_P4_HW_Emulator|Ellison p4 HW emulator]] and [[Ellison_P4_HW_Emulator_Hybrid|Ellison p4 HW emulator hybrid]].

==See also==
*[[Blocked_p4_t-nose|Blocked p4 t-nose]]
*[[Blocked_p4-1|Blocked p4-1]]
*[[Blocked_p4-2|Blocked p4-2]]
*[[Period-44_traffic_light_hassler|Period-44 traffic light hassler]]
*[[P32 blinker hassler]]
[[Category:Patterns with bilateral symmetry]]

File:P32blinkerhassler.png

2011-08-10T17:18:32Z

Scotgot: uploaded a new version of "File:P32blinkerhassler.png"

P32 blinker hassler

2011-08-10T17:16:42Z

Scotgot: show other versions and link to blocked p4-3

{{Oscillator|name=P32 blinker hassler|pname=p32blinkerhassler|p=32|c=75|h=38.5|bx=21|by=24|discoverer=Noam Elkies|discoveryear=2010|nofile=true|v=0.33}}
'''P32 blinker hassler''' is a [[period]] [[:Category:oscillators with period 32|32]] [[oscillator]] discovered by [[Noam Elkies]] in April [[:Category:patterns found in 2010|2010]]. It uses of two [[Blocked p4-3]]s.

==Image gallery==
{| class="wikitable"
|-
| [[Image:P32 Blinker Hassler DB.PNG|thumb|left|David Buckingham version]] || [[Image:P32 blinker hassler orig.PNG|thumb|left|Original version by Noam Elkies]]

|}

==See Also==
*[[blocked p4-3]]

File:P32blinkerhassler.png

2011-08-10T17:07:36Z

Scotgot: uploaded a new version of "File:P32blinkerhassler.png"