2-engine Cordership: Difference between revisions
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==Synthesis and seeds== | ==Synthesis and seeds== | ||
[[Dave Greene]] found a 13-glider synthesis of the 2-engine Cordership on the day of its discovery,<ref name="post54450" /> which [[ | [[Dave Greene]] found a 13-glider synthesis of the 2-engine Cordership on the day of its discovery,<ref name="post54450" /> which [[Luka Okanishi]] improved to 9 gliders.<ref name="post54453" /> | ||
Two-glider [[seed]]s using as few as 9 still lifes and one-glider seeds using 15 still lifes are known.<ref name="post54492" /> | Two-glider [[seed]]s using as few as 9 still lifes and one-glider seeds using 15 still lifes are known.<ref name="post54492" /> | ||
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[[Chris Cain]] updated the [[infinite glider hotel]] to use the 2-engine Cordership on January 3rd, 2018.<ref name="post54590" /> | [[Chris Cain]] updated the [[infinite glider hotel]] to use the 2-engine Cordership on January 3rd, 2018.<ref name="post54590" /> | ||
[[Entity Valkyrie]] built an 853×474 2-engine Cordership gun on January 6, 2018, using [[ | [[Entity Valkyrie]] built an 853×474 2-engine Cordership gun on January 6, 2018, using [[Luka Okanishi]]'s 9-glider synthesis;<ref name="post54750" /> [[BlinkerSpawn]] noted that this gun could be compacted to 385×253 using the [[quadri-snark]].<ref name="post54753" /> [[Dave Greene]] built an unrelated period-556 2-engine Cordership gun on January 7th, 2018.<ref name="post54814" /><ref name="post54815" /> Entity Valkyrie built a different gun using a [[transparent]] [[boat]] on January 10, 2018.<ref name="post54928" /> | ||
[[Aidan F. Pierce]] combined the 2-engine Cordership with a [[switch engine]] to obtain various [[puffer]]s.<ref name="post54816" /> | [[Aidan F. Pierce]] combined the 2-engine Cordership with a [[switch engine]] to obtain various [[puffer]]s.<ref name="post54816" /> | ||
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|format = ref | |format = ref | ||
|title = Re: Spaceship Discussion Thread | |title = Re: Spaceship Discussion Thread | ||
|author = AbhpzTa | |author = [[Luka Okanishi]] (AbhpzTa) | ||
|accessdate = January 4, 2018 | |accessdate = January 4, 2018 | ||
|date = December 31, 2017 | |date = December 31, 2017 | ||
Revision as of 09:55, 11 February 2018
| 2-engine Cordership | |||||||||
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| Pattern type | Spaceship | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Family | Cordership | ||||||||
| Number of cells | 100 | ||||||||
| Bounding box | 41 × 48 | ||||||||
| Direction | Diagonal | ||||||||
| Period | 96 (mod: 96) | ||||||||
| Speed | c/12 | Unknown | ||||||||
| Heat | 110.4 | ||||||||
| Kinetic symmetry | Unspecified | ||||||||
| Discovered by | Aidan F. Pierce | ||||||||
| Year of discovery | 2017 | ||||||||
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The 2-engine Cordership is a diagonal c/12 spaceship that was discovered by Aidan F. Pierce on December 31, 2017.[1] It is the Cordership that uses the fewest number of switch engines known to be possible, as well as the smallest Cordership in terms of population.
Reactions
Dave Greene noted that the 2-engine Cordership, like its 3-engine counterpart, can be stopped by a single glider from behind without releasing any gliders or other spaceships.[2], and updated Extremeenthusiast's Model D Heisenburp device for the 2-engine Cordership.[2]
Dave Greene, Blinkerspawn and Matthias Merzenich noted that the 2-engine Corership can be eaten by a constellation of two eaters and three blocks.[2]
gmc_nxtman pointed out that the 2-engine Cordership can reflect a glider 180 degrees, while preserving its mod-4 timing.[3]
Synthesis and seeds
Dave Greene found a 13-glider synthesis of the 2-engine Cordership on the day of its discovery,[4] which Luka Okanishi improved to 9 gliders.[5]
Two-glider seeds using as few as 9 still lifes and one-glider seeds using 15 still lifes are known.[6]
Uses
David Bell built a log(t) growth from four 2-engine Corderships[3], and a 4-engine Cordership rake from two adjacent 2-engine Corderships[7], both on January 3rd, 2018. 2718281828, Dave Greene and Chris Cain posted glider syntheses for this rake on January 7th, allowing for the construction of breeders.[8][9][10]
Bell further built two different period 96 c/12 forward rakes, one using the the 4-engine rake, along with the 2-engine Cordership and an older 3-engine block puffer,[11] the other using a new Cordership boat and block puffer, two 2-engine Corderships, and a sideways rake, both on January 6th, 2018.[11] He also built a different Cordership made from a two-engine boat puffer and a 2-engine Cordership that contains a glider which can escape if the boat is deleted by a sideways or forward glider.[11]
Chris Cain updated the infinite glider hotel to use the 2-engine Cordership on January 3rd, 2018.[12]
Entity Valkyrie built an 853×474 2-engine Cordership gun on January 6, 2018, using Luka Okanishi's 9-glider synthesis;[13] BlinkerSpawn noted that this gun could be compacted to 385×253 using the quadri-snark.[14] Dave Greene built an unrelated period-556 2-engine Cordership gun on January 7th, 2018.[15][16] Entity Valkyrie built a different gun using a transparent boat on January 10, 2018.[17]
Aidan F. Pierce combined the 2-engine Cordership with a switch engine to obtain various puffers.[18]
References
- ↑ Aidan F. Pierce (December 31, 2017). Re: Spaceship Discussion Thread (discussion thread) at the ConwayLife.com forums
- ↑ 2.0 2.1 2.2 Dave Greene (January 3, 2018). Re: Spaceship Discussion Thread (discussion thread) at the ConwayLife.com forums
- ↑ 3.0 3.1 gmc_nxtman (January 3, 2018). Re: Spaceship Discussion Thread (discussion thread) at the ConwayLife.com forums
- ↑ Dave Greene (December 31, 2017). Re: Spaceship Discussion Thread (discussion thread) at the ConwayLife.com forums
- ↑ Luka Okanishi (AbhpzTa) (December 31, 2017). Re: Spaceship Discussion Thread (discussion thread) at the ConwayLife.com forums
- ↑ Dave Greene (January 1, 2018). Re: Spaceship Discussion Thread (discussion thread) at the ConwayLife.com forums
- ↑ David Bell (January 3, 2018). Re: Spaceship Discussion Thread (discussion thread) at the ConwayLife.com forums
- ↑ 2718281828 (January 7, 2018). Re: Spaceship Discussion Thread (discussion thread) at the ConwayLife.com forums
- ↑ Dave Greene (January 7, 2018). Re: Spaceship Discussion Thread (discussion thread) at the ConwayLife.com forums
- ↑ Chris Cain (January 7, 2018). Re: Spaceship Discussion Thread (discussion thread) at the ConwayLife.com forums
- ↑ 11.0 11.1 11.2 David Bell (January 6, 2018). Re: Spaceship Discussion Thread (discussion thread) at the ConwayLife.com forums
- ↑ Chris Cain (January 3, 2018). Re: Spaceship Discussion Thread (discussion thread) at the ConwayLife.com forums
- ↑ Entity Valkyrie (January 6, 2018). Guns Discussion Thread (discussion thread) at the ConwayLife.com forums
- ↑ BlinkerSpawn (January 6, 2018). Re: Guns Discussion Thread (discussion thread) at the ConwayLife.com forums
- ↑ Dave Greene (January 7, 2018). Re: Guns Discussion Thread (discussion thread) at the ConwayLife.com forums
- ↑ Dave Greene (January 7, 2018). Re: Spaceship Discussion Thread (discussion thread) at the ConwayLife.com forums
- ↑ Entity Valkyrie (January 10, 2018). Re: Small Spaceship Syntheses (discussion thread) at the ConwayLife.com forums
- ↑ Aidan F. Pierce (January 7, 2018). Re: Spaceship Discussion Thread (discussion thread) at the ConwayLife.com forums
External links
- Patterns
- Spaceships with between 100 and 109 cells
- Periodic objects with minimum population between 100 and 109
- Patterns with between 100 and 109 cells
- Patterns found by Aidan F. Pierce
- Patterns found in 2017
- Patterns that can be constructed with 9 gliders
- Outer-totalistically endemic patterns
- Spaceships
- Spaceships with period 96
- Diagonal spaceships
- Spaceships with speed c/12
- Spaceships with heat between 110 and 119
- Cordership variants
- Spaceships with mod 96