Difference between revisions of "Period-59 glider gun"
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{{Gun | {{Gun | ||
'''Period-59 glider gun''' is the first [[Gun#True-period_guns|true period]] 59 [[gun]] to be discovered. It was discovered by [[Adam P. Goucher]]. | |name = Period-59 glider gun | ||
|pname = period59gun | |||
|c = 167863 | |||
|bx = 4091 | |||
|by = 3082 | |||
|p = 59 | |||
|b = 2 | |||
|discoverer = Adam P. Goucher | |||
|discoverer2 = Jason Summers | |||
|discoveryear = 2009 | |||
|rle = true | |||
}} | |||
'''Period-59 glider gun''' is the first [[Gun#True-period_guns|true period]] 59 [[gun]] to be discovered. It was discovered by [[Adam P. Goucher]] in [[:Category:Patterns found in 2009|2009]]. [[Jason Summers]] helped by providing a period-59 five glider to six glider reaction and also a 180 degree reflector reaction. | |||
The core of the gun is the 5-to-6 reaction (an [[over-unity reaction]]), composed of two copies of a mechanism hassling two [[pi-heptomino]]es, in a fashion reminescent of the [[P44 pi-heptomino hassler]]. Of the 11 glider streams linked to this: | |||
* Two link together via a 180° reflection off a P59 oscillator. | |||
* Four are pairwise linked to a single copy of the basic mechanism. This functions as a two-to-two glider reflection reaction on its own, rerouting two parallel glider streams (one incoming, one outgoing) into two sideways ones. | |||
* Four of the core streams are redirected using 90° reflections off further p59 oscillators (and some tertiary pairs of reactors) and to link with the four streams from the secondary reactors. | |||
* This leaves one output stream. | |||
Discovery of the [[snark]] in [[:Category:Patterns found in 2013|2013]] enabled [[Dave Greene]] to build a much smaller variant with a bounding box of 405×355.<ref>{{cite web|url=http://www.conwaylife.com/forums/viewtopic.php?p=7853#p7853|title=Re: Just the place for a Snark!|author=Dave Greene|date=April 28, 2013|accessdate=October 3, 2014}}</ref> | |||
==Image gallery== | ==Image gallery== | ||
{| | {| | ||
|- | |- | ||
|[[Image:OriginalP59.png|framed|left|14,348 | |[[Image:OriginalP59.png|framed|left|The original 14,348×12,790 period-59 gun<br />{{JavaRLE|p59glidergunoriginal}}]] | ||
|[[Image:P59_gun_8k_x_7k.PNG|framed|left|8,870 | |[[Image:P59_gun_8k_x_7k.PNG|framed|left|8,870×7,352 period-59 gun which was the result of the 180 degree reflector<br />{{JavaRLE|p59glidergun8kx8k}}]] | ||
|[[Image:P59glidergungreene.png|framed|left|405×355 period-59 gun which was the result of the Snark<br />{{JavaRLE|p59glidergungreene}}]] | |||
|} | |||
{| | |||
|[[Image:P59_gun.png|framed|300px|left|327÷337 period-59 gun reduction; 1 barrel<br />{{JavaRLE|p59glidergunsmall}}]] | |||
|} | |} | ||
==References== | |||
<references/> | |||
==See also== | |||
* [[Quetzal]] | |||
Revision as of 09:27, 14 October 2018
| Period-59 glider gun | |||||
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| View static image | |||||
| Pattern type | Gun | ||||
|---|---|---|---|---|---|
| Number of cells | 167863 | ||||
| Bounding box | 4091 × 3082 | ||||
| Period | 59 | ||||
| Barrels | 2 | ||||
| Discovered by | Adam P. Goucher Jason Summers | ||||
| Year of discovery | 2009 | ||||
| |||||
Period-59 glider gun is the first true period 59 gun to be discovered. It was discovered by Adam P. Goucher in 2009. Jason Summers helped by providing a period-59 five glider to six glider reaction and also a 180 degree reflector reaction.
The core of the gun is the 5-to-6 reaction (an over-unity reaction), composed of two copies of a mechanism hassling two pi-heptominoes, in a fashion reminescent of the P44 pi-heptomino hassler. Of the 11 glider streams linked to this:
- Two link together via a 180° reflection off a P59 oscillator.
- Four are pairwise linked to a single copy of the basic mechanism. This functions as a two-to-two glider reflection reaction on its own, rerouting two parallel glider streams (one incoming, one outgoing) into two sideways ones.
- Four of the core streams are redirected using 90° reflections off further p59 oscillators (and some tertiary pairs of reactors) and to link with the four streams from the secondary reactors.
- This leaves one output stream.
Discovery of the snark in 2013 enabled Dave Greene to build a much smaller variant with a bounding box of 405×355.[1]
Image gallery
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References
- ↑ Dave Greene (April 28, 2013). "Re: Just the place for a Snark!". Retrieved on October 3, 2014.