Difference between revisions of "Pre-pulsar shuttle 29"

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{{Oscillator
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#REDIRECT [[p29 pre-pulsar shuttle]]
|name            = p29 pre-pulsar shuttle
 
|pname            = prepulsarshuttle29
 
|f1              = Shuttle
 
|c                = 54
 
|bx              = 28
 
|by              = 28
 
|p                = 29
 
|m                = 29
 
|h                = 41.5
 
|v                = 0.90
 
|discoverer      = David Buckingham
 
|discoveryear    = 1980
 
|rulemin          = B3/S23
 
|rulemax          = B3/S2378
 
|rulespecial      = [[Conway's Game of Life|Conway Life]]
 
|isorulemin      = B3-k/S23-ck
 
|isorulemax      = B35ck6ek7/S234ckyz5kqr6ei78
 
|synthesis        = 30
 
|plaintext        = true
 
|rle              = true
 
|animated        = true
 
|apgcode          = xp29_y8ca23z252y24eexcczg8gy28ssy366xg0s4z01y76e6x6e6w11zzy8252y1252
 
|pentadecathlonid = 54P29.1
 
|viewerconfig    = #C [[ GPS 5 ZOOM 10 LOOP 29 ]]
 
}}{{Ambox|text=This article is currently in the process of being moved to [[p29 pre-pulsar shuttle]]. See [[LifeWiki:Tiki_bar#Moving_pre-pulsar_shuttle_pages|this tiki bar discussion]] for more information.}}
 
'''p29 pre-pulsar shuttle''' (or '''prime'''{{citation needed}}) is a [[period]] [[:Category:Oscillators with period 29|29]] [[shuttle]] [[oscillator]] discovered by [[David Buckingham]] on August 2, [[:Category:patterns_found_in_1980|1980]],<ref>{{CiteHickersonOscillators|accessdate=June 16, 2009}}</ref> making it the first oscillator of that period to be found. In terms of its [[:Category:patterns_with_54_cells|54]] [[cell]]s it is the smallest known period 29 oscillator.<ref>{{cite web|url=http://www.pentadecathlon.com/objects/class2/class2.php?part=3 |title=Class 2 Objects Catalog |accessdate=June 10, 2009}}</ref> The oscillator works by combining the 15-generation, two-[[tub]] pre-pulsar shuttle mechanism used in [[Eureka]] with a 14-generation pre-pulsar shuttle mechanism. [[hassle|Hassling]] pre-pulsars in this way was the only known way of constructing period 29 oscillators until the discovery of the [[p29 traffic-farm hassler]], and some variations of this shuttle are shown below.  In September [[:Category:patterns found in 1994|1994]] [[Bill Gosper]] found that two copies of pre-pulsar shuttle 29 could be used to hassle a [[pentadecathlon]]. Gosper used it to construct the [[p58 toadsucker]].
 
 
 
A {{gliders|42}} [[synthesis]] is known for a variant of this oscillator, 56P29, which is shown below.<ref>{{CiteCatagolue|title=xp29_wgg0s4w255202552w4s0ggz320f811w4r4x4r4w118f023zzy4252y1252|page=object/xp29_wgg0s4w255202552w4s0ggz320f811w4r4x4r4w118f023zzy4252y1252/b3s23|accessdate=June 6, 2019}}</ref>
 
 
 
==Image gallery==
 
{|
 
|-
 
|[[Image:Prepulsar29_gen4.png|framed|left|[[Generation]] 4 reveals two pre-pulsars (black) being hassled by a 15-generation mechanism (green) and a 14-generation mechanism (red).]]
 
|[[Image:Prepulsar29_v2.png|framed|left|A slightly larger version of this oscillator, 56P29, with just one pre-pulsar (black) and an alternate 14-generation stabilization (red)<br />{{JavaRLE|prepulsarshuttle29v2|brief}}]]
 
|[[Image:Prepulsar29_v3.png|framed|left|A much larger version of this oscillator with four pre-pulsars<br />{{JavaRLE|prepulsarshuttle29v3|brief}}]]
 
|}
 
 
 
==See also==
 
* [[Pre-pulsar shuttle oscillators]]
 
 
 
==References==
 
<references/>
 
 
 
== External links ==
 
{{LinkCatagolue|xp29_y8ca23z252y24eexcczg8gy28ssy366xg0s4z01y76e6x6e6w11zzy8252y1252}}
 
{{LinkCatagolue|xp29_wgg0s4w255202552w4s0ggz320f811w4r4x4r4w118f023zzy4252y1252|patternname=56P29}}
 
{{LinkPentadecathlonObject|54P29.1}}
 
 
 
{{Symmetry|diagonal2}}
 
[[Category:Sparkers]]
 
[[Category:Sparkers with period 29]]
 
[[Category:Strong sparkers]]
 
[[Category:Pre-pulsar shuttle oscillators]]
 
__NOTOC__
 
{{DISPLAYTITLE:p29 pre-pulsar shuttle}}
 

Latest revision as of 11:40, 7 December 2019