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Oscillator

2013-04-30T15:00:54Z

Spam User:

{{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.

'''Source(s):''' [http://www.downloadranking.com Oscillator]

==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. For any period 61 or greater an oscillator can be constructed using the Herschel track method. In April, [[:Category:patterns found in 2013|2013]] [[Mike Playle]] found a small 90-degree [[stable reflector]] that allows oscillators of all periods 43 or greater to be constructed.

'''Source(s):''' [http://www.downloadranking.com Oscillator]

<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
|-
! [[:Category:oscillators with period 43|43]]
| [[P43 glider shuttle]]
| [[Mike Playle]]
| [[:Category:patterns found in 2013|2013]]
|-
! [[: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
|-
! [[:Category:oscillators with period 53|53]]
| [[P53 glider shuttle]]
| [[Mike Playle]]
| [[:Category:patterns found in 2013|2013]]
|-
! [[: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
| [[p26 glider loop]]
| [[:Category:Patterns with 156 cells|156]]
|-
! 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]]
|-
! 43
| [[P43 glider shuttle]]
| [[:Category:patterns with 228 cells|228]]
|-
! 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 228 cells|228]]
|-
! 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]]
|-
! 53
| [[P53 glider shuttle]]
| [[:Category:patterns with 228 cells|228]]
|-
! 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 glider shuttle]]
| [[:Category:patterns with 228 cells|228]]
|-
! 58
| [[P58 glider shuttle]]
| [[:Category:patterns with 208 cells|208]]
|-
! 59
| [[P59 glider shuttle]]
| [[:Category:patterns with 228 cells|228]]
|-
! 60
| [[mold on pentadecathlon]]
| [[:Category:patterns with 24 cells|24]]
|-
! 61
| [[P61 glider shuttle]]
| [[:Category:patterns with 228 cells|228]]
|-
! 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]]
|-
! 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}}

Infinite LWSS hotel

2013-01-11T11:43:39Z

Spam User:

{{Pattern|name=Infinite LWSS hotel|pname=infinitelwsshotel|c=3357|bx=515|by=298|discoverer=Jason Summers|discoveryear=2002|life105=true|life106=true|rle=true}}
The '''infinite LWSS hotel''' is a [[pattern]] that was found by [[Jason Summers]] on October 20, [[:Category:Patterns found in 2002|2002]] that contains an ever-expanding [[lightweight spaceship]] [[track]]. One new lightweight spaceship is added to the loop every 250 [[generation]]s. The preexisting lightweight spaceships reenter the stream at a point 12/25ths of the way between two new lightweight spaceships; unlike earlier patterns of this type, this one will not work (for long) if the old spaceships re-enter exactly halfway between the new ones. <ref>{{CiteSummersPattern|name=jslife|accessdate=May 21, 2009}}</ref>

==See also==
*[[Infinite glider hotel]]
* [http://clevereditor.com/ http://clevereditor.com/]

==References==
<references />

Oscillator

2013-01-03T13:09:05Z

Spam User:

{{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.

'''Source(s):''' [http://www.downloadranking.com Oscillator]

==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. For any period 61 or greater an oscillator can be constructed using the Herschel track method.

<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
| [[p26 glider loop]]
| [[:Category:Patterns with 156 cells|156]]
|-
! 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]]
|-
! 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}}

124P21

2012-10-22T12:35:38Z

Spam User:

{{Oscillator|name=124P21|pname=124p21|c=124|p=21|bx=36|by=25|h=55.8|discoverer=Robert Wainwright|discoveryear=1995|animated=yes|life105=true|life106=true|plaintext=true|rle=true|v=0.64}}
'''124P21''' is an unnamed [[period]] [[:Category:Oscillators with period 21|21]] [[oscillator]] that was discovered by [[:Category:Patterns found by Robert Wainwright|Robert Wainwright]] on February 21, [[:Category:Patterns found in 1995|1995]].<ref>{{CiteHickersonOscillators|accessdate=April 17, 2009}}</ref> It was the first period 21 oscillator to be found.

It works by using two period [[:Category:Oscillators with period 3|3]] [[caterer]]s and two copies of [[44P7.2]] to [[hassle]] two [[traffic light]] [[predecessor]]s. [http://essay-writing-service.org/cheap-writing.php cheap essay writing]

==References==
<references />

[[Category:Patterns with S2 symmetry]]

Herschel

2012-10-22T12:35:19Z

Spam User: /* Common uses */

__NOTOC__{{Methuselah|l=128|name=Herschel|pname=herschel|c=7|bx=3|by=4|life105=true|life106=true|plaintext=true|rle=true}}
A '''Herschel''' (or, much less commonly, '''D-heptomino'''<ref>{{cite web|url=http://www.argentum.freeserve.co.uk/lex_d.htm#dheptomino |title=Life Lexicon "D" |publisher=Stephen Silver |date=February 28, 2006|accessdate=March 25, 2009}}</ref><ref>{{cite web|url=http://www.conwaylife.com/wiki/index.php?title=Lifeline_Volume_1 |title=Lifeline Number 1 |publisher=Robert Wainwright |date=March 1971}}</ref> or '''J-heptomino'''<ref>{{cite web|url=http://www.argentum.freeserve.co.uk/lex_j.htm#jheptomino|title=J-heptomino|publisher=The Life Lexicon|author=Stephen Silver|accessdate=June 13, 2009}}</ref>) is a [[heptomino]] shaped like the lowercase letter ''h'', which occurs at generation 20 of the [[B-heptomino]]. It evolves into two [[block]]s, two [[glider]]s and a [[ship]] after 128 generations, and also produces a [[phi spark]].

==Common uses==
Herschels are the final recognizable "bottleneck" stage of a very common progression of three small active objects, frequently seen during the evolution of chaotic patterns. An [[R-pentomino]] evolves after 28 ticks into a [[B-heptomino]] a dozen cells away from the starting point, plus some active trailing junk; the B-heptomino then evolves into a Herschel in another 20 ticks, while traveling another 8 cells in the same direction. [http://dissertations.biz/thesis.php dissertations.biz thesis]

The unusual distance that R-pentominoes and B-heptominoes travel during their evolution into Herschels has allowed for the development of a growing collection of [[Herschel conduit]]s, which use [[catalyst]]s to modify the 128-step reaction. Instead of producing the still lifes and gliders described above, an input Herschel "bounces off" a series of eaters and other catalysts and produces a new output Herschel some distance away. In some cases, the active reaction travels directly "through" one or more [[transparent catalyst]]s, destroying it completely and re-creating it in the same location several ticks later. The output Herschel can then become the input for another conduit, which may continue in the same direction or turn left or right. If it eventually forms a closed loop, the result is a Herschel-based [[oscillator]] or [[gun]].

==Etymology==
The term "Herschel" is attributed to '''John Conway''', who very early in the history of Life investigated the fates of all '''polyominoes''' up to at least 7 bits <ref>{{cite web|url=http://www.ibiblio.org/lifepatterns/october1970.html |title=Mathematical Games: The fantastic combinations of John Conway's new solitaire game "life" |author=Martin Gardner |date=October, 1970 |accessdate=August 2, 2009}}</ref>. The name is commonly ascribed to the Herschel heptomino's similarity to a planetary symbol ♄ erroneously attributed to Uranus (discovered by William Herschel in 1781.) However, in point of fact a Herschel closely resembles the symbol for ''Saturn'', but bears no particular resemblance to either of the symbols used for Uranus. So the appropriate name might actually be "Huygens" -- but "Herschel" is now universally used by tradition.

==Image gallery==
{|
|-
|[[Image:HerschelFinal.png|thumb|left|Generation 128 of a Herschel]]
|}

==See also==
*[[Conduit 1]]
*[[Herschel grandparent]]
*[[Herschel parent]]

==References==
<references />

==External links==
{{LinkWeisstein|Herschel.html}}
{{LinkLexicon|lex_h.htm#herschel}}

Loading dock

2012-08-22T20:01:18Z

Spam User: moved Loading dock to DioakcLn dog

{{Oscillator|name=Loading dock|h=2.7|bx=9|by=8|c=22|pname=loadingdock|p=3|discoverer=David Buckingham|discoveryear=1972|life105=true|life106=true|plaintext=true|rle=true|animated=true|v=0.17}}
'''Loading dock''' is a [[period]] [[:Category:Oscillators with period 3|3]] [[oscillator]] that was found by [[:Category:Patterns found by David Buckingham|David Buckingham]] in September [[:Category:Patterns found in 1972|1972]]. It has the same [[rotor]] as [[six Ls]].

==External links==
*[http://www.argentum.freeserve.co.uk/lex_l.htm#loadingdock Loading dock] at the Life Lexicon
[[Category:Patterns with S2 symmetry]]

Two pulsar quadrants

2012-08-22T20:00:12Z

Spam User: moved Two pulsar quadrants to En pueadntnsSevaar qulters

{{Oscillator|name=Two pulsar quadrants|h=16|bx=10|by=10|c=18|pname=twopulsarquadrants|p=3|discoveryear=1973|discoverer=David Buckingham|life105=true|life106=true|plaintext=true|rle=true|animated=true}}
'''Two pulsar quadrants''' is a [[period]] [[:Category:Oscillators with period 3|3]] [[oscillator]] that was found by [[:Category:Patterns found by David Buckingham|David Buckingham]] in July [[:Category:Patterns found in 1973|1973]].

==See also==
*[[Pulsar quadrant]]

==External links==
{{LinkWeisstein|TwoPulsarQuadrants.html}}
{{LinkLexicon|lex_t.htm#twopulsarquadrants}}

Cis-very long hook with tail

2012-08-22T19:59:19Z

Spam User: moved Cis-hook with tail to Cowtos-hai h tliki

{{Stilllife|name=Cis-hook with tail|pname=cishookwithtail|bx=5|by=6|c=10|life105=true|life106=true|plaintext=true|rle=true|synthesis=8|synthesisRLE=true|rulemin=B/S23|rulemax=B35678/S012345678|rulespecial=[[Conway's Game of Life|Conway Life]], [[HighLife]]}}
'''Cis-hook with tail''' is a [[:Category:Strict still lifes with 10 cells|10]]-[[cell]] [[still life]] that is similar to a [[long long hook with tail]], but with its tail facing the opposite direction.

==See also==
*[[Cis-shillelagh]]
*[[Hook with tail]]
*[[Long hook with tail]]

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

Beacon on 38P11.1

2012-08-22T19:57:58Z

Spam User: moved Beacon on 38P11.1 to Baceon on 38Potato11.1

{{Oscillator|name=Beacon on 38P11.1|h=6.4|pname=beaconon38p11.1|p=22|c=40|bx=12|by=14|animated=yes|life105=true|life106=true|plaintext=true|rle=true|discoverer=David Buckingham|discoveryear=1977|v=0.33}}
'''Beacon on 38P11.1''' is a [[period]] [[:Category:Oscillators with period 22|22]] [[oscillator]] that is composed of a [[beacon]] and [[38P11.1]], where the beacon is used as an [[induction coil]]. With a minimum population of [[:Category:Patterns with 40 cells|40]] [[cell]]s, it is the second smallest known period 22 oscillator, though it is usually considered trivial because there is no individual cell that oscillates at the full period (as it is made up of a period 2 and a period 11 oscillator). The smallest known period 22 oscillator is [[36P22]], with [[:Category:Patterns with 36 cells|36]] cells.<ref>{{cite web|url=http://pentadecathlon.com/objects/class2/class2.php?part=1 |title=Class 2 Objects Catalog |accessdate=April 9, 2009}}</ref>

==References==
<references />

50P35

2012-08-22T19:57:28Z

Spam User: moved 50P35 to 50Potato35

{{Oscillator|name=50P35|pname=50p35|c=50|p=35|bx=33|by=21|h=37.8|discoverer=Jason Summers|discoveryear=2002|animated=yes|rle=true|life105=true|life106=true|plaintext=true|life105=true|life106=true|plaintext=true|v=0.88}}
'''50P35''' is an unnamed [[period]] [[:Category:oscillators_with_period_35|35]] [[oscillator]] discovered by [[Jason Summers]] on March 20, [[:Category:patterns found in 2002|2002]].<ref>Jason Summers' ''all-osc'' oscillators collection</ref> In terms of its [[:Category:Patterns_with_50_cells|50]] [[cell]]s it is the smallest known oscillator of that period.<ref>{{cite web|url=http://www.pentadecathlon.com/objects/class2/class2.php?part=2 |title=Class 2 Objects Catalog |accessdate=June 16, 2009}}</ref>

==References==
<references/>
[[Category:Patterns with S2 symmetry]]

Talk:Period-36 glider gun

2012-08-22T19:57:01Z

Spam User: moved Talk:Period-36 Glider Gun to Talk:Potato-36 Glider Pun

There appears to be a problem with the rle file. --[[User:Scotgot|Scot Ellison]] 08:29, 8 July 2011 (CDT)

x = 50, y = 49, rule = B3/S23

48bo$46b3o$45bo$45boo5$43bo$42b3o$33boo7boboo$32bobbo$32bobobbo$33bo3b

o$37bo7bo$34bo8b3o$35boo7bo$41bobbo$41b3o$$38b3o$37bobbo$37bo7boo$36b

3o8bo$26boo8bo7bo$oo23bobbo15bo3bo$bo21bobbobo15bobbobo$bobo7bo10bo4bo

18bobbo$bboo3boobbo3bo6bo13boobo7boo$6bo5bobb3o6b3o10b3o$5boobbobo3b3o

20bo$6boo3bo$7b3o$29b3o$27bo3boo$21b3o3bobobboo$12b3o6b3obbo5bo7bo$16b

o6bo3bobboo6bobo$11bo4bo10bo11boo$10bobobbo$10bobbo$11boo11bo5b4obboo$

23bobob8obbo$23bob12o$20boobobo11b3o$20booboo11bobbo9bo$23bo13boo8bobo

$23bobo4boo16boo$24boo4boo!

Period-36 glider gun

2012-08-22T19:57:01Z

Spam User: moved Period-36 Glider Gun to Potato-36 Glider Pun

{{Gun|p=36|name=Period-36 Glider Gun|pname=period36glidergun|c=152|bx=50|by=49|discoverer=Jason Summers|rle=true|animated=true}}
'''Period-36 glider gun''' is a [[Gun#True-period_guns|true period]] [[:Category:oscillators with period 36|36]] [[gun]] discovered by [[Jason Summers]]. [[Adam P. Goucher]] improved the gun by replacing one of the three original [[period]] [[JS_p36|36 oscillator]] engines with a large period-4 oscillator. [[Scot Ellison]] improved the gun by replacing the period 4 oscillator with [[Ellison P4 HW Emulator Hybrid]].

Bunnies

2012-08-22T19:56:27Z

Spam User: moved Bunnies to Punnies

__NOTOC__{{Methuselah|l=17332|name=Bunnies|pname=bunnies|bx=8|by=4|c=9|discoverer=Robert Wainwright|life105=true|life106=true|plaintext=true|rle=true|synthesis=5|synthesisRLE=true}}
'''Bunnies''' is a [[parent]] of [[rabbits]] and was found independently by [[:Category:Patterns found by Robert Wainwright|Robert Wainwright]] and [[:Category:Patterns found by Andrew Trevorrow|Andrew Trevorrow]].

==Stable pattern==
The stable pattern that results from bunnies has 1744 [[cell]]s and consists of 136 [[blinker]]s (including 14 [[traffic light]]s), 109 [[block]]s, 65 [[beehive]]s (including three [[honey farm]]s), 40 [[glider]]s, 18 [[boat]]s, 18 [[loaf|loaves]], seven [[ship]]s, four [[tub]]s, three [[pond]]s and two [[toad]]s.<ref>{{cite web|url=http://pentadecathlon.com/lifeNews/2005/02/new_methuselah_records.html |title=New Methuselah Records |author=Koenig, H. |date=February 21, 2005 |accessdate=January 24, 2009}}</ref>
<gallery>
Image:Bunnies_final.png|Generation 17332
</gallery>

==See also==
*[[Bunnies 9]]
*[[Bunnies 10]]
*[[Bunnies 11]]

==References==
<references />

==External links==
{{LinkLexicon|filename=lex_b.htm#bunnies}}
{{LinkWeisstein|filename=Bunnies.html}}
[[Category:Patterns found by Andrew Trevorrow]]

Talk:28P7.1

2012-08-22T19:55:43Z

Spam User: moved Talk:28P7.1 to Talk:28Potato7.1

The pattern files for [[28P7.1]] don't seem to work, nor do those of [[28P7.2]]

: Yep, no worries, I automatically get an e-mail about it when someone stumbles on that "pattern file not found" page. I'll upload them now. [[User:Nathaniel|Nathaniel]] 12:16, 9 June 2009 (UTC)

28P7.1

2012-08-22T19:55:43Z

Spam User: moved 28P7.1 to 28Potato7.1

{{Oscillator|name=28P7.1|pname=28p71|c=28|p=7|bx=13|by=9|h=4.9|discoverer=Dean Hickerson|discoveryear=1998|animated=yes|life105=true|life106=true|plaintext=true|rle=true|v=0.40}}
'''28P7.1''' is an unnamed [[period]] [[:Category:Oscillators with period 7|7]] [[oscillator]] discovered by [[Dean Hickerson]] in [[:Category:patterns found in 1998|1998]]. In terms of its 28 [[cell]]s, it is tied with oscillators [[burloaferimeter]] and [[28P7.2]] as the smallest known period 7 oscillator.<ref>{{cite web|url=http://pentadecathlon.com/objects/class2/class2.php?part=2 |title=Class 2 Objects Catalog |accessdate=March 14, 2009}}</ref>

==See also==
*[[Phase change]]

==References==
<references />

Catacryst

2012-08-22T19:55:13Z

Spam User: moved Catacryst to Cacrystat

{{Pattern|name=Catacryst|pname=catacryst|c=58|bx=2555|by=1772|discoverer=Nick Gotts|discoveryear=2000|life105=true|life106=true|rle=true}}
'''Catacryst''' is a [[:Category:Patterns with 58 cells|58]]-cell [[infinite growth#quadratic growth|quadratic growth]] pattern found by [[:Category:Patterns found by Nick Gotts|Nick Gotts]] in April [[:Category:Patterns found in 2000|2000]]. This was formerly the smallest known pattern with superlinear growth, but has since been superseded by the related [[metacatacryst]] and [[26-cell quadratic growth]]. The catacryst consists of three [[ark|arks]] plus a [[glider]]-producing [[switch engine]]. It produces a [[block]]-laying switch engine every 47616 generations. Each block-laying switch engine has only a finite life, but the length of this life increases linearly with each new switch engine, so that the pattern overall grows quadratically, as an unusual type of MMS [[breeder]].

==Image gallery==
<gallery>
Image:Catacryst_gen1000000.png|Generation 1,000,000 of catacryst
Image:Catacryst1.png|The top portion of the catacryst (an [[ark]])
Image:Catacryst2.png|The top-right portion of the catacryst (a [[glider]]-producing [[switch engine]])
Image:Catacryst3.png|The bottom-middle portion of the catacryst (an ark)
Image:Catacryst4.png|The bottom-left portion of the catacryst (an ark)
</gallery>

==External links==
{{LinkLexicon|lex_c.htm#catacryst}}

Fly

2012-08-22T19:53:50Z

Spam User: moved Fly to Flying Saucer

{{Spaceship|name=Fly|type=Tagalong|pname=fly|bx=34|by=20|h=161.3|dir=Orthogonal|p=3|s=c/3|c=157|discoverer=David Bell|discoveryear=1992|life105=true|life106=true|plaintext=true|rle=true|animated=true}}
'''Fly''' is a tagalong for orthogonal [[:Category:Spaceships with speed c/3|c/3]] [[spaceship]]s that was found by [[David Bell]] in April [[:Category:Patterns found in 1992|1992]]. It is shown to the right attached to the back of the [[edge-repair spaceship 1|25P3H1V0.1]] spaceship, also found by Bell. It can also be attached to the back of [[60P3H1V0.3]], as shown below, and flies can be attached to the back of each other, creating an extensible tagalong.

==Image gallery==
{|
|-
|[[Image:flyon60p3h1v03.png|framed|left|Fly attached to a 60P3H1V0.3 {{JavaRLE|flyon60p3h1v0.3|brief}}]]
|[[Image:flyextension.png|framed|left|Flies attached together {{JavaRLE|flyextension|brief}}]]
|}

==External links==
{{LinkWeisstein|Fly.html}}
{{LinkLexicon|lex_f.htm#fly}}
[[Category:Tagalongs]]

Jason's p22

2012-08-22T19:53:11Z

Spam User: moved 36P22 to 36Potato22

{{Oscillator|name=36P22|pname=36p22|c=36|p=22|bx=27|by=14|h=35.6|discoverer=Jason Summers|discoveryear=2000|animated=yes|rle=true|life105=true|life106=true|plaintext=true|synthesis=12|synthesisRLE=true|v=0.93}}
:''For the period 36 oscillator, see [[22P36]].''
'''36P22''' is an unnamed [[period]] [[:Category:Oscillators with period 22|22]] [[oscillator]] discovered by [[Jason Summers]] on August 27, [[:Category:Patterns found in 2000|2000]].<ref>{{CiteSummersPattern|name=all-osc}}</ref> It is composed of an unnamed reaction stabilized by two copies of [[eater 1]]. In terms of its 36 [[cell]]s, it is the smallest known period 22 oscillator, followed by [[beacon on 38P11.1]] and [[champagne glass]] with [[:Category:Patterns with 40 cells|40]] and [[:Category:Patterns with 45 cells|45]] cells, respectively.<ref>{{cite web|url=http://pentadecathlon.com/objects/class2/class2.php?part=2 |title=Class 2 Objects Catalog |accessdate=April 9, 2009}}</ref> Later on the day of the oscillator's discovery, [[David Eppstein]] found a way to combine two of them to produce the [[true period 22 gun|first true period 22 gun]].<ref>{{CiteLexicon|lex_t.htm#true|name=true|accessdate=July 7, 2009}}</ref> In February [[:Category:patterns found in 2001|2001]] Jason Summers found a [[:Category:patterns that can be constructed with 12 gliders|12]]-[[glider]] [[glider synthesis|synthesis]] of this oscillator.<ref>{{CiteSummersPattern|name=jslife}}</ref>

==See also==
*[[Caterer on 36P22]]
*[[Mold on 36P22]]
*[[Pseudo-barberpole on 36P22]]

==References==
<references />
[[Category:Patterns with S2 symmetry]]

Elevener

2012-08-22T19:52:41Z

Spam User: moved Elevener to Elevator

{{Stilllife|name=Elevener|bx=6|by=6|pname=elevener|c=11|life105=true|life106=true|plaintext=true|rle=true|synthesis=4|synthesisRLE=true|rulemin=B/S23|rulemax=B3678/S012345678|rulespecial=[[Conway's Game of Life|Conway Life]], [[HighLife]]}}
'''Elevener''' (or '''gull'''<ref>{{cite web|url=http://www.argentum.freeserve.co.uk/lex_g.htm#gull |title=Gull |author=Stephen Silver|publisher = Life Lexicon |accessdate=April 24, 2009}}</ref> or '''intentionless'''<ref>{{cite web|url=http://www.argentum.freeserve.co.uk/lex_i.htm#intentionless|title=Intentionless|publisher=The Life Lexicon|author=Stephen Silver|accessdate=June 13, 2009}}</ref>) is the forty-seventh most common [[still life]] (the second-most common of its size, after the [[boat-ship-tie]]), being less common than [[bookends]] but more common than [[block and cap]].<ref>{{cite web|url=http://wwwhomes.uni-bielefeld.de/achim/freq_top_life.html |title=Most seen natural occurring ash objects in Game of Life |author=Achim Flammenkamp |date=September 7, 2004 |accessdate=January 15, 2009}}</ref>

==See also==
*[[Fourteener]]

==References==
<references />

==External links==
{{LinkWeisstein|filename=Elevener.html}}
{{LinkLexicon|filename=lex_e.htm#elevener}}
[[Category:Patterns with diagonal bilateral symmetry]]

Ternary reaction

2012-08-22T19:52:07Z

Spam User: moved Ternary reaction to Teawdrnary reawdaction

{{Glossary}}
A '''ternary reaction''' is a reaction between three objects. In particular, it is a reaction in which two [[glider]]s from one stream and one [[glider]] from a crossing stream of the same period annihilate each other. This can be used to combine two glider [[gun]]s of the same [[period]] to produce a new glider gun with double the period.

==External links==
{{LinkWeisstein|TernaryReaction.html}}
{{LinkLexicon|lex_t.htm#ternaryreaction}}

Talk:P32 blinker hassler

2012-08-22T19:51:36Z

Spam User: moved Talk:P32 blinker hassler to Talk:I like pie

x = 21, y = 26, rule = B3/S23

10bo$4b2o3bobo3b2o$3bobo4bo4bobo$3bo13bo$2ob2o11b2ob2o$2obobo9bobob2o$

3bob11obo$3bobob7obobo$4bo4bobo4bo3$6bo7bo$5bo9bo$5b2o3bo3b2o$10bo$10b

o2$4bo3bobobo3bo$3bobo9bobo$3bobo9bobo$2obobob7obobob2o$2obo13bob2o$3b

o13bo$3bobo4bo4bobo$4b2o3bobo3b2o$10bo!

P32 blinker hassler

2012-08-22T19:51:36Z

Spam User: moved P32 blinker hassler to I like pie

{{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]]

Blinker fuse

2012-08-22T19:51:04Z

Spam User: moved Blinker fuse to Blinker snooze

__NOTOC__{{Fuse|p=18|name=Blinker fuse|pname=blinkerfuse|s=2c/3|life105=true|life106=true|plaintext=true|rle=true|animated=true|synthesisRLE=true}}A '''blinker fuse''' is any [[fuse]] that burns through a line of [[blinker]]s. Alternatively, it may refer to the 2c/3 period 18 fuse that burns [[clean]]ly through [[blinker]]s that are spaced four [[cell]]s apart, shown to the right. This particular fuse can be combined with [[blinker puffer 1]] to create various interesting patterns, such as [[moving sawtooth]], [[slow puffer 1]], and [[slow puffer 2]].

==Note==
[[House]] alone, attached to a blinker wick with spacing 4, is a predecessor to the fuse shown to the right.

==Other 2c/3 blinker fuses==
There are two other well-known 2c/3 blinker fuses that act on blinkers that are orthogonally offset by four cells, both of which are shown below. They both burn cleanly and have period 6.<ref>{{CiteSummersPattern|name=jslife|accessdate=May 27, 2009}}</ref>

{|
|-
|[[Image:Blinkerfuse2.png|framed|left|Longer version of the House-based blinker fuse, with shorter period {{JavaRLE|blinkerfuse2}}]]
|[[Image:Blinkerfuse3.png|framed|left|Another blinker fuse ("bomb") {{JavaRLE|blinkerfuse3}}]]
|}

==c/2 fuse==
The c/2 blinker fuse burns cleanly through blinkers that are orthogonally offset by an even number of cells and has period 2x spacing. HWSS burns clearly through output of both Blinker Puffers 1 and 2 and front part of [[Blinker ship 1]].<ref name="hensel">[[Alan Hensel]]'s [http://www.ibiblio.org/lifepatterns/ lifep.zip pattern collection].</ref> It consists of a single [[heavyweight spaceship]] and is useful because it travels at the same speed as the known [[blinker puffer]]s, allowing for the construction of arbitrary-length [[spaceship]]s. Note that [[Coe ship]]'s side spark can also be used in cleanup.

{|
|-
|[[Image:Blinkerfusehwss.png|framed|left|The heavyweight spaceship blinker fuse {{JavaRLE|hwssblinkerfuse}}]]
|}

==6c/13 fuse==
The 6c/13 blinker fuse burns cleanly through blinkers that are orthogonally offset by six cells and has period 26.<ref name="hensel" /> It is most well-known for the role that it plays in [[blinker ship 1]], where the fact that it burns at a rate slower than c/2 is taken advantage of to create a [[growing spaceship]].

{|
|-
|[[Image:Blinkerfuse6c13.png|framed|left|The 6c/13 blinker fuse {{JavaRLE|blinkerfuse6c13}}]]
|}

==See also==
*[[Hacksaw]]
*[[Sawtooth 1163]]

==References==
<references />

==External links==
*[http://echochamber.me/viewtopic.php?f=17&t=39017 A pattern in the Game of Life] - Forum thread at xkcd.com

P28 pre-pulsar shuttle

2012-08-22T19:50:33Z

Spam User: moved Pre-pulsar shuttle 28 to Post-sulpar ruttle 218

{{Oscillator|name=Pre-pulsar shuttle 28|pname=prepulsarshuttle28|c=54|p=28|bx=22|by=16|h=33.1|animated=yes|rle=true|life105=true|life106=true|plaintext=true|v=0.82}}
'''Pre-pulsar shuttle 28''' is a [[period]] [[:Category:oscillators_with_period_28|28]] [[pre-pulsar]] [[shuttle]] [[oscillator]]. It consists of a pre-pulsar being [[hassle]]d by two period-14 shuttle mechanisms. In terms of its [[:Category:patterns_with_54_cells|54]] [[cell]]s it is the second smallest oscillator of that period, after [[mold on 41P7.2]] with only [[:Category:patterns with 53 cells|53]] cells.

==See also==
*[[88P28]]
*[[Newshuttle]]
*[[Pre-pulsar shuttle 26]]
*[[Pre-pulsar shuttle 29]]
*[[Pre-pulsar shuttle 47]]
[[Category:Patterns with bilateral symmetry]]
[[Category:Shuttles]]

Life 1.06

2012-08-22T19:49:46Z

Spam User: moved Life 1.06 to Knife 1.06

The '''Life 1.06''' [[:Category:File formats|file format]] is an ASCII format that is just a list of coordinates of alive cells. Life 1.06 was designed to be easy and quick for a Life program to read and write, with the drawback being that the file size is very large for large [[pattern]]s. Life 1.06 files are saved with a .lif or .life file extension.

==Description of format==
The first line is a header line, indicating that the file is in Life 1.06 format:

<code>#Life 1.06</code>

Each subsequent line is of the form

<code>x y</code>

where x and y are the x and y coordinates of an alive cell, respectively. Each alive cell must be on its own line, and the x and y coordinates are separated by a space.

==Examples==

The following is a [[glider]] in Life 1.06 format:

<code>
#Life 1.06
 0 -1
 1 0
 -1 1
 0 1
 1 1
</code>

Note that the overall (x,y)-offset of the coordinates generally does not matter (for example, adding 3 to each x-coordinate will have no real effect), nor does the order that the cells are listed in. As a result of these ambiguities, the same pattern may be saved in several different ways. The following is another equivalent way that a glider might be saved in the Life 1.06 format:

<code>
#Life 1.06
 0 2
 1 0
 1 2
 2 1
 2 2
</code>

==See also==
*[[Life 1.05]]
*[[Plaintext]]
*[[RLE]]

==External links==
*[http://psoup.math.wisc.edu/mcell/ca_files_formats.html Cellular automata file formats] at Mirek's Cellebration

[[Category:Everything else]][[Category:File formats]]

Baker's dozen

2012-08-22T19:49:17Z

Spam User: moved Baker's dozen to Baker's twozen

{{Oscillator|p=12|name=Baker's dozen|pname=bakersdozen|c=45|h=36.3|bx=25|by=11|discoverer=Robert Wainwright|discoveryear=1989|animated=true|life105=true|life106=true|plaintext=true|rle=true|synthesis=30|synthesisRLE=true|rulemin=B3/S23|rulemax=B38/S2378|rulespecial=[[Conway's Game of Life|Conway Life]]|v=0.89}}
'''Baker's dozen''' consists of a [[loaf]] hassled by two [[block|blocks]] and two [[caterer|caterers]]. The original form (using [[period]] [[:Category:Oscillators with period 4|4]] and period [[:Category:Oscillators with period 6|6]] [[oscillator|oscillators]] to do the hassling) was found by [[:Category:Patterns found by Robert Wainwright|Robert Wainwright]] in August [[:Category:Patterns found in 1989|1989]].

==External links==
{{LinkLexicon|lex_b.htm#bakersdozen}}

Flip-flop

2012-08-22T19:48:18Z

Spam User: moved Flip-flop to Pimp-plomp

A '''flip-flop''' may refer to one of three (non-equivalent) types of [[period]] [[:Category:Oscillators with period 2|2]] [[oscillator]]:

* Any period 2 oscillator.
* Any period 2 oscillator whose two [[phase]]s are mirror images of one another. Examples include [[by flops]].
* Any period 2 oscillator in which all [[rotor]] cells die from [[underpopulation]]. Examples include [[clock]], [[fox]], and the [[barberpole|barberpoles]].

In the latter sense it contrasts with [[on-off]], which is a period 2 oscillator whose rotor cells die due to overpopulation. The term has also been used even more specifically to refer to [[phoenix 1]].

==External links==
{{LinkLexicon|lex_f.htm#flipflop}}

P58 toadsucker

2012-08-22T19:47:49Z

Spam User: moved P58 toadsucker to P58 toadschmucker

{{Oscillator|name=P58 toadsucker|pname=p58toadsucker|c=258|bx=67|by=56|p=58|h=220.1|discoverer=Bill Gosper|discoveryear=1994|animated=true|rle=true|life105=true|life106=true|plaintext=true|v=0.91}}
'''P58 toadsucker''' is a [[period]] [[:Category:oscillators with period 58|58]] [[toad#toadsucker|toadsucker]] [[oscillator]] found by [[Bill Gosper]] in [[:Category:patterns found in 1994|1994]], being the first period 58 oscillator to be found. It is based on a period [[:Category:oscillators with period 29|29]] [[polyomino#domino|domino]] [[spark]]er that changes the phase of a [[pentadecathlon]], and works by shifting a [[toad]] back and forth every 58 [[generation]]s. This was the only known way to create period 58 oscillators until the discovery of [[Herschel loop]]s and an [[eater]] that allowed sufficient compression. In terms of its [[:Category:patterns with 258 cells|258]] [[cell]]s it is the smallest known period 58 oscillator.

==See also==
*[[P36 toad hassler]]
*[[P48 toad hassler]]
*[[Pre-pulsar shuttle 29]]

Claw with tail

2012-08-22T19:46:59Z

Spam User: moved Claw with tail to Cold Slaw with fail

{{Stilllife|name=Claw with tail|pname=clawwithtail|bx=6|by=5|c=10|life105=true|life106=true|plaintext=true|rle=true|synthesis=4|synthesisRLE=true|rulemin=B/S23|rulemax=B3678/S012345678|rulespecial=[[Conway's Game of Life|Conway Life]], [[HighLife]]}}
'''Claw with tail''' (or '''great snake eater''') is a [[:Category:Strict still lifes with 10 cells|10]]-[[cell]] [[still life]]. It is the seventy-second most common still life being less common than [[eleven loop]], but more common than [[symmetric scorpion]].<ref>{{CiteAchim|accessdate=November 7, 2009}}</ref>

==See also==
*[[Hook with tail]]

==References==
<references/>

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

Blinker puffer 2

2012-08-22T19:46:19Z

Spam User: moved Blinker puffer 2 to Blinker puffer 1018.2-E

{{Puffer|p=4|s=c/2|dir=Orthogonal|name=Blinker puffer 2|bx=17|by=25|pname=blinkerpuffer2|c=79|discoverer=David Bell|discoveryear=1992|life105=true|life106=true|plaintext=true|rle=true}}
'''Blinker puffer 2''' was found by [[:Category:Patterns found by David Bell|David Bell]] in [[:Category:Patterns found in 1992|1992]] when he was trying to extend an [[x66]]. It produces [[blinker]]s that have the same spacing as those produced by [[blinker puffer 1]].

The importance of this [[blinker puffer]] is that the engine which produces the blinker output is only [[period]] 4. The [[blinker]] row produced by the puffer can easily be ignited, and burns cleanly with a [[speed]] of 2c/3 (see [[blinker fuse]]). When the burning catches up to the engine, it causes a [[phase change]] in the puffer. This fact allows period 8 blinker puffers to be used to construct [[rake]]s of all periods that are large multiples of four.

Blinker puffer 2 and [[Hivenudger 2]] are notable for the fact that they can survive burning catching up to the engine. With both of them, however, "bomb fuse" is quite [[dirty]] while both "house fuses" burn clearly. (In [[blinker fuse]] article, main image shows a [[period]] 18 House Fuse, second image shows the period 6 version, image 3 shows the "Bomb Fuse", named for its shape)

==See also==
*[[Blinker puffer 1]]

==External links==
{{LinkLexicon|lex_b.htm#blinkerpuffer}}

Bi-gun

2012-08-22T19:45:39Z

Spam User: moved Bi-gun to Bi-pun

{{Gun|p=46|name=Bi-gun|bx=56|by=17|pname=bigun|c=44|discoverer=Bill Gosper|life105=true|life106=true|plaintext=true|rle=true|animated=true|synthesis=14|synthesisRLE=true}}
The '''bi-gun''' is a double-barreled glider [[gun]] that was found by [[Bill Gosper]] in the early 1970's.<ref>[[Alan Hensel]]'s [http://www.ibiblio.org/lifepatterns/ lifebc.zip pattern collection].</ref> Much like his [[Gosper glider gun]] works by colliding two [[queen bee shuttle]]s together, the bi-gun works by colliding two [[twin bees shuttle]]s together. [[Dietrich Leithner]] discovered that it can be synthesised with 12 gliders.

==References==
<references />

Middleweight volcano

2012-08-22T19:45:15Z

Spam User: moved Middleweight volcano to Middleweight Wrestler

{{Oscillator|p=5|name=Middleweight volcano|pname=middleweightvolcano|v=0.46|bx=13|by=13|animated=true|c=47|h=16.4|discoverer=Dean Hickerson|discoveryear=1992|life105=true|life106=true|plaintext=true|rle=true}}
'''Middleweight volcano''' is a [[period]] [[:Category:Oscillators with period 5|5]] [[oscillator]] that was found by [[:Category:Patterns found by Dean Hickerson|Dean Hickerson]] in April [[:Category:Patterns found in 1992|1992]] that produces [[spark]]s much like a [[middleweight spaceship]].

==Image gallery==
{|
|-
|[[Image:MW_volcano_gen2.png|framed|left|Generation 2 of middleweight volcano reveals its sparks]]
|}

==See also==
*[[134P25]]
*[[Heavyweight volcano]]
*[[Toaster]]

==External links==
*[http://www.argentum.freeserve.co.uk/lex_m.htm#middleweightvolcano Middleweight volcano] at the Life Lexicon

Long⁴ snake

2012-08-22T19:44:24Z

Spam User: moved Extra extra long snake to Extra extra extra extra extra extra long snake

{{Stilllife|name=Extra extra long snake|bx=8|by=6|pname=extraextralongsnake|c=10|life105=true|life106=true|plaintext=true|rle=true|synthesis=6|synthesisRLE=true|rulemin=B/S23|rulemax=B35678/S012345678|rulespecial=[[Conway's Game of Life|Conway Life]], [[HighLife]]}}
'''Extra extra long snake''' is the [[long^4|long4]] version of a [[snake]].

==See also==
*[[Extra long snake]]
*[[Long long canoe]]

==External links==
*[http://home.interserv.com/~mniemiec/still.htm#10-bit%20still Ten-bit still lifes] by Mark Niemiec
[[Category:Patterns with S2 symmetry]]

Sawtooth

2012-08-22T15:53:13Z

Spam User: moved Sawtooth to Slawbooth

{{Glossary}}
[[Image:Sawtooth260_pop.png|thumb|right|A plot of population versus generation number for [[sawtooth 260]]]]
A '''sawtooth''' is a finite [[pattern]] whose population grows without bound but does not tend to infinity. In other words, it is a pattern with population that reaches new heights infinitely often, but also infinitely often drops below some fixed value. Their name comes from the fact that their plot of population versus generation number looks roughly like an ever-increasing sawtooth graph.

The [[sawtooth 1212|first sawtooth]] was constructed by [[:Category:Patterns found by Dean Hickerson|Dean Hickerson]] in April [[:Category:Patterns found in 1991|1991]] by using a [[loaf]] [[tractor beam]] (a technique that was also used in the construction of [[sawtooth 633]]). The least infinitely repeating population of any known sawtooth is 260, attained by [[sawtooth 260]].

==Expansion factor==
The '''expansion factor''' of a sawtooth is the limit of the ratio of successive heights (or equivalently, widths) of the "teeth" in plots of population versus generation number. Some sawtooths do not have an expansion factor under its standard definition because they have growth that is not exactly exponentially-spaced (see [[parabolic sawtooth]] and [[sawtooth 1163]]).

==See also==
*[[Caber tosser]]
*[[:Category:Sawtooths|List of sawtooths]]

==External links==
{{LinkWeisstein|Sawtooth.html}}
{{LinkLexicon|lex_s.htm#sawtooth}}

1-2-3

2012-08-22T15:52:22Z

Spam User: moved 1-2-3 to 1-2-4

{{Oscillator|name=1-2-3|h=2|v=0.11|bx=10|by=9|c=26|pname=123|p=3|discoverer=David Buckingham||discoveryear=1972|life105=true|life106=true|plaintext=true|rle=true|animated=true}}
'''1-2-3''' was found by [[:Category:Patterns found by David Buckingham|David Buckingham]] in August [[:Category:Patterns found in 1972|1972]]. This is one of only three essentially different period-3 oscillators with only three cells in the [[rotor]]. The others are [[stillater]] and [[cuphook]].

==External links==
[http://www.argentum.freeserve.co.uk/lex_1.htm#a123 1-2-3] at the Life Lexicon

Log(t)² growth

2012-08-22T15:51:18Z

Spam User: moved Log(t)^2 growth to Ouch.

{{Pattern|name=Log(t)2 growth|pname=logt2growth|c=1431|bx=290|by=218|discoverer=Dean Hickerson|discoveryear=1992|plaintext=true|life105=true|life106=true|rle=true}}
'''Log(t)2 growth''' is a pattern that was found by [[Dean Hickerson]] on April 24, [[:Category:Patterns found in 1992|1992]]. It experiences [[infinite growth]] that is O(log(t)2) and is the first such pattern that was constructed.

A bit more specifically, its population in generation n is asymptotic to (5log(t)2)/(3log(2)2). Even more specifically, for n ≥ 2, the population in generation 960×2n is 5n2/3 + 60n + 1875 + (100/9)*sin²(pi*n/3).

It is constructed out of a [[caber tosser 1|caber tosser]], a modified [[block pusher]], and a toggleable [[period]] 120 [[gun]]. Each glider from the caber tosser turns on the gun and causes the block pusher to go through one cycle (sending out a [[salvo]] and then waiting for the return gliders). When the cycle is complete, the gun is turned back off.<ref>{{CiteHensel|name=lifep.zip|accessdate=August 9, 2009}}</ref>

==See also==
*[[10-engine Cordership]]

==References==
<references />

Catalyst

2012-08-22T15:50:12Z

Spam User: moved Catalyst to Cataclyst

{{Glossary}}
A '''catalyst''' is an object that participates in a reaction but emerges from it unharmed. The term is mostly applied to [[still life]]s, but can also be used for [[oscillator]]s, [[spaceship]]s, and other [[pattern]]s. The still lifes and oscillators which form a [[conduit]] are examples of catalysts.

==External links==
[http://www.argentum.freeserve.co.uk/lex_c.htm#catalyst Catalyst] at the Life Lexicon

Talk:Blinker

2012-08-22T15:48:03Z

Spam User: moved Talk:Blinker to Talk:Toilet

There exists a oscillator that can eat a stream of blinkers. Look at "Blinker eater" at conwaylife.com

Blinker

2012-08-22T15:48:03Z

Spam User: moved Blinker to Toilet

{{Oscillator|name=Blinker|pname=blinker|p=2|c=3|bx=3|by=3|h=4|discoverer=John Conway|discoveryear=1970|animated=true|life105=true|life106=true|plaintext=true|rle=true|synthesis=2|synthesisRLE=true|rulespecial=[[Conway's Game of Life|Conway Life]], [[HighLife]]|rulemin=B3/S2|rulemax=B345678/S02345678|v=0.80}}
The '''blinker''' is the smallest and most common [[oscillator]]. In fact, it is more than one hundred times as frequently-occurring as the second most common oscillator, the [[toad]].<ref>{{cite web|url=http://wwwhomes.uni-bielefeld.de/achim/freq_top_life.html |title=Most seen natural occurring ash objects in Game of Life |author=Achim Flammenkamp |date=September 7, 2004 |accessdate=January 15, 2009}}</ref> It was found by [[:Category:Patterns found by John Conway|John Conway]] in March [[:Category:Patterns found in 1970|1970]]. It is one of only a handful of known oscillators that is a [[polyomino]], and it is the only known oscillator that is [[one cell thick pattern|one cell thick]] (although the [[pentadecathlon]] is "almost" one cell thick in that there is a one cell thick pattern that is a [[grandparent]] of it).

==See also==
*[[Interchange]]
*[[List of common oscillators]]
*[[Traffic light]]

==External links==
{{LinkWeisstein|Blinker.html}}
{{LinkLexicon|lex_b.htm#blinker}}
[[Category:Patterns with D2 symmetry]]

Kok's galaxy

2012-08-22T15:47:28Z

Spam User: moved Kok's galaxy to Kok's universe

{{Oscillator|p=8|c=28|h=39|bx=13|by=13|v=1.00|name=Kok's galaxy|pname=koksgalaxy|discoverer=Jan Kok|discoveryear=1971|life105=true|life106=true|plaintext=true|rle=true|animated=yes|synthesis=12|synthesisRLE=true}}
'''Kok's galaxy''' is a [[period]] [[:Category:Oscillators with period 8|8]] [[oscillator]] found by [[:Category:Patterns found by Jan Kok|Jan Kok]] in [[:Category:Patterns found in 1971|1971]]. It is notable for its uses as a [[sparker]], and can be seen acting as one in [[converter 1]]. In September [[:Category:patterns found in 2003|2003]] [[Jason Summers]] found a [[:Category:patterns that can be constructed with 12 gliders|12]]-[[glider]] [[glider synthesis|synthesis]] of this oscillator.<ref>{{CiteSummersPattern|name=jslife}}</ref>

==See also==
*[[Achim's p8]]
*[[Blocker]]
*[[Coe's p8]]
*[[Figure eight]]

==References==
<references/>

==External links==
{{LinkWeisstein|KoksGalaxy.html}}
{{LinkLexicon|lex_k.htm#koksgalaxy}}
[[Category:Patterns with S4 symmetry]]

Switch engine/Snippet

2012-08-22T15:45:52Z

Spam User: moved Switch engine/Pippet to Tank engine/Pippet

<noinclude>{{Snippet}}</noinclude>[[Image:Switchengine.png|left]]A '''switch engine''' is a [[methuselah]] that was found by [[Charles Corderman]] in [[:Category:Patterns found in 1971|1971]]. It is unstable by itself, but it can be used to make [[:Category:Spaceships with speed c/12|c/12]] diagonal [[puffer]]s and [[spaceship]]s.

There are two basic types of stabilized switch engine, both of which were also found by Charles Corderman: the [[period]] 288 [[block-laying switch engine]] (the more common of the two) and period 384 [[glider-producing switch engine]]. These two puffers are the most natural [[infinite growth]] patterns in [[Conway's Game of Life|Life]], being the only ones ever seen to occur from [[soup|random starting patterns]].

Glider gun

2012-08-22T15:45:09Z

Spam User: moved Glider gun to Glider pun

{{Glossary}}
A '''glider gun''' is any [[gun]] that fires [[glider|gliders]]. The most popular glider gun by far is the [[Gosper glider gun]].

==See also==
*[[Factory]]
*A period 435 glider gun is shown using [[Karel's p15]].
*[[:Category:Guns|List of guns]]

==External links==
[http://www.argentum.freeserve.co.uk/lex_g.htm#glidergun Glider gun] at the Life Lexicon

3-engine Cordership gun

2012-08-22T15:43:57Z

Spam User: moved 3-engine Cordership gun to 3-engine Corderpimp gun

{{Gun|p=690|name=3-engine Cordership gun|pname=3enginecordershipgun|c=1812|bx=279|by=258|discoverer=Paul Tooke|discoveryear=2004|rle=true|plaintext=true|life105=true|life106=true}}
'''3-engine Cordership gun''' is a [[period]] 690 [[gun]] that fires [[3-engine Cordership]]s. It was constructed by [[Paul Tooke]] on January 19, [[:Category:Patterns found in 2004|2004]], only a week after the 3-engine Cordership itself was built.<ref>''p690-PT-Cordership-gun.rle'' from [[Golly]]'s built-in pattern collection</ref> It builds the [[Cordership]] via a 15-[[glider]] [[glider synthesis|synthesis]], and its minimum repeat rate is 542 [[generation]]s.

==Videos==
{|
|-
|{{#ev:youtube|Tpi0pu87kKo|300|left|The 3-engine Cordership gun firing Corderships southeast}}
|}

==See also==
*[[3-engine Cordership rake]]

==References==
<references />

Cow

2012-08-22T15:43:20Z

Spam User: moved Cow to MOO

{{Fuse|animated=true|p=8|name=Cow|pname=cow|s=c|life105=true|life106=true|plaintext=true|rle=true}}'''Cow''' is a [[lightspeed]] period 8 [[fuse]] that burns [[clean]]ly.

==External links==
{{LinkWeisstein|Cow.html}}
{{LinkLexicon|lex_c.htm#cow}}

Long canoe

2012-08-22T15:42:42Z

Spam User: moved Long canoe to Dwa

{{Stilllife|name=Long canoe|pname=longcanoe|bx=6|by=6|c=9|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]]}}
'''Long canoe''' is a [[:Category:patterns with 9 cells|9]]-[[cell]] [[still life]], being the [[long]] version of a [[canoe]]. It is the 77th most common still life being more common than [[trans-boat and dock]] but less common than [[trans-rotated R-bee]].<ref>{{CiteAchim|accessdate=November 6, 2009}}</ref>

==See also==
*[[Extra long snake]]
*[[Long long canoe]]

==References==
<references/>

==External links==
{{LinkWeisstein|filename=LongCanoe.html}}
{{LinkLexicon|filename=lex_l.htm#longcanoe}}
*[http://home.interserv.com/~mniemiec/still.htm#9-bit%20still Nine-bit still lifes] by Mark Niemiec
[[Category:Patterns with diagonal bilateral symmetry]]

Star gate

2012-08-22T15:41:47Z

Spam User: moved Star gate to SHUT UP

{{Oscillator|name=Star gate|p=60|pname=stargate|h=830.8|c=1099|bx=155|by=126|discoverer=Dietrich Leithner|discoveryear=1996|animated=true|life105=true|life106=true|plaintext=true|rle=true}}
'''Star gate''' is a [[pattern]] based on the [[Fast forward force field|Fast Forward Force Field]] that was created on October 26, [[:Category:Patterns found in 1996|1996]] by [[Dietrich Leithner]]. It is a [[period]] 60 [[oscillator]] that allows [[lightweight spaceship]]s to jump forward at the superluminous [[speed]] of 15c/14. Specifically, lightweight spaceships entering from the left appear to jump by 30 [[cell]]s along their path in 28 [[generation]]s.

==Image gallery==
{|
|-
|[[Image:Stargate_lwss.png|framed|left|A star gate teleporting some lightweight spaceships {{JavaRLE|stargatewithlightweightspaceships|brief}}]]
|}

==External links==
{{LinkWeisstein|StarGate.html}}
{{LinkLexicon|lex_s.htm#stargate}}

Barge siamese loaf

2012-08-22T15:40:41Z

Spam User: moved Loaf siamese barge to Dak

{{Stilllife|name=Loaf siamese barge|pname=loafsiamesebarge|bx=5|by=5|c=10|life105=true|life106=true|plaintext=true|rle=true|synthesis=9|synthesisRLE=true|rulemin=B/S23|rulemax=B3678/S012345678|rulespecial=[[Conway's Game of Life|Conway Life]], [[HighLife]]}}
'''Loaf siamese barge''' is a [[:Category:strict still lifes with 10 cells|10]]-[[cell]] [[still life]] that consists of a [[barge]] attached to a [[loaf]].

==See also==
*[[Siamese]]

==External links==
{{LinkLexicon|lex_l.htm#loafsiamesebarge}}
*[http://home.interserv.com/~mniemiec/still.htm#10-bit%20still Ten-bit still lifes] by Mark Niemiec
[[Category:Patterns with diagonal bilateral symmetry]]

Long bookend

2012-08-22T15:40:17Z

Spam User: moved Long hook to Hdawo

{{Pattern|type=Induction coil|name=Long hook|pname=longhook|bx=5|by=3|c=8|life105=true|life106=true|plaintext=true|rle=true}}
'''Long hook''' (or '''long bookend''') is an [[induction coil]] that is a [[long]]er version of a [[bookend]].

==External links==
[http://www.argentum.freeserve.co.uk/lex_l.htm#longbookend Long hook] at the Life Lexicon

Beacon maker

2012-08-22T15:39:51Z

Spam User: moved Beacon maker to Rudolph

{{Fuse|name=Beacon maker|pname=beaconmaker|p=8|s=c|c=19|discoverer=Steve Tower|life105=true|life106=true|plaintext=true|rle=true}}'''Beacon maker''' is a [[fuse]] discovered by Steve Tower<ref>{{CiteSummersPattern|name=jslife|accessdate=December 2, 2010}}</ref> that creates [[beacon|beacons]] as it burns.

==See also==
*[[Baker]]
*[[Boat maker]]
*[[Hive maker]]
*[[Ship maker]]

==References==
<references/>

==External links==
{{LinkLexicon|lex_b.htm#beaconmaker}}

Long shillelagh

2012-08-22T15:39:03Z

Spam User: moved Long shillelagh to Long shillelalellillagah

{{Stilllife|name=Long shillelagh|pname=longshillelagh|bx=6|by=3|c=9|life105=true|life106=true|plaintext=true|rle=true|synthesis=6|synthesisRLE=true|rulemin=B/S23|rulemax=B3678/S012345678|rulespecial=[[Conway's Game of Life|Conway Life]], [[HighLife]]}}
'''Long shillelagh''' is [[:Category:patterns with 9 cells|9]]-[[cell]] [[still life]]. It is the [[long]] version of the [[shillelagh]]. It is the 62nd most common still life, less common than the [[integral with tub]] but more common than [[trans-R-bee and R-loaf]].

==See also==
*[[Cis-shillelagh]]
*[[Long long shillelagh]]

==External links==
{{LinkWeisstein|LongShillelagh.html}}
{{LinkLexicon|lex_l.htm#longshillelagh}}
*[http://home.interserv.com/~mniemiec/still.htm#9-bit%20still Nine-bit still lifes] by Mark Niemiec