Difference between revisions of "Eureka"
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{{Oscillator | {{Oscillator | ||
|name = Eureka | |name = Eureka | ||
|pname = | |pname = eureka | ||
|f1 = Shuttle | |f1 = Shuttle | ||
|c = 28 | |c = 28 | ||
| Line 27: | Line 27: | ||
|pentadecathlonid = 28P30.1 | |pentadecathlonid = 28P30.1 | ||
}} | }} | ||
'''Eureka''' (or '''p30 pre-pulsar shuttle''') is a [[period]] [[:Category:Oscillators with period 30|30]] [[pre-pulsar]] [[shuttle]] [[oscillator]] in which two 15-generation pre-pulsar shuttle mechanisms each composed of two [[tub]]s [[hassle]] a pre-pulsar. It was found by [[:Category:Patterns found by David Buckingham|David Buckingham]] in August [[:Category:Patterns found in 1980|1980]]. A slightly different period 30 shuttle can be created by shifting the top half of the shuttle two [[cell]]s to the left or right (see below). This allows the | '''Eureka''' (or '''p30 pre-pulsar shuttle''') is a [[period]]-[[:Category:Oscillators with period 30|30]] [[pre-pulsar]] [[shuttle]] [[oscillator]] in which two 15-generation pre-pulsar shuttle mechanisms each composed of two [[tub]]s [[hassle]] a pre-pulsar. It was found by [[:Category:Patterns found by David Buckingham|David Buckingham]] in August [[:Category:Patterns found in 1980|1980]]. A slightly different period-30 shuttle can be created by shifting the top half of the shuttle two [[cell]]s to the left or right (see below). This allows the outermost tubs to optionally be replaced by [[block]]s. | ||
==Image gallery== | ==Image gallery== | ||
{| | {| | ||
|- | |- | ||
|[[Image:Eureka_gen1.png|thumb|left|Generation 1 of Eureka, which shows that the object being [[hassle]]d is | |[[Image:Eureka_gen1.png|thumb|left|Generation 1 of Eureka, which shows that the object being [[hassle]]d is a pre-pulsar]] | ||
|[[Image: | |[[Image:Skewed_eureka.png|thumb|left|A skewed variant of Eureka with one tub replaced by a block<br />{{JavaRLE|skewedeureka}}]] | ||
|} | |} | ||
Revision as of 06:45, 9 December 2019
| Eureka | |||||||||
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| Pattern type | Oscillator | ||||||||
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| Oscillator type | Shuttle | ||||||||
| Number of cells | 28 | ||||||||
| Bounding box | 18 × 15 | ||||||||
| Period | 30 | ||||||||
| Mod | 15 | ||||||||
| Heat | 22.4 | ||||||||
| Volatility | 0.91 | ||||||||
| Strict volatility | 0.91 | ||||||||
| Discovered by | David Buckingham | ||||||||
| Year of discovery | 1980 | ||||||||
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Eureka (or p30 pre-pulsar shuttle) is a period-30 pre-pulsar shuttle oscillator in which two 15-generation pre-pulsar shuttle mechanisms each composed of two tubs hassle a pre-pulsar. It was found by David Buckingham in August 1980. A slightly different period-30 shuttle can be created by shifting the top half of the shuttle two cells to the left or right (see below). This allows the outermost tubs to optionally be replaced by blocks.
Image gallery
 Generation 1 of Eureka, which shows that the object being hassled is a pre-pulsar |
 |
External links
- Eureka at the Life Lexicon
- 28P30.1 at Heinrich Koenig's Game of Life Object Catalogs
Variants
Categories:
- Patterns
- Oscillators with 28 cells
- Periodic objects with minimum population 28
- Patterns with 28 cells
- Patterns found by David Buckingham
- Patterns found in 1980
- Patterns that can be constructed with 12 gliders
- Oscillators
- Shuttles
- Oscillators with period 30
- Oscillators with mod 15
- Oscillators with heat 22
- Oscillators with volatility 0.91
- Oscillators with strict volatility 0.91
- Patterns with bilateral orthogonal symmetry
- Flipping oscillators
- Sparkers
- Sparkers with period 30
- Strong sparkers
- Semi-natural periodic objects
- Pre-pulsar shuttle oscillators