Difference between revisions of "Fore and back"
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{{Oscillator|p=2|c=24|h=4|v=0.15|bx=7|by=7|name=Fore and back|pname=foreandback|discoveryear=1994|discoverer=Achim Flammenkamp|life105=true|life106=true|plaintext=true|rle=true|animated=true|v=0.15|synthesis=20}} | {{Oscillator|p=2|c=24|h=4|v=0.15|bx=7|by=7|name=Fore and back|pname=foreandback|discoveryear=1994|discoverer=Achim Flammenkamp|life105=true|life106=true|synthesisRLE=true|plaintext=true|rle=true|animated=true|v=0.15|synthesis=20}} | ||
'''Fore and back''' (or '''complementary blinker''') is a [[period]] [[:Category:Oscillators with period 2|2]] [[oscillator]] that was found by [[:Category:Patterns found by Achim Flammenkamp|Achim Flammenkamp]] in July [[:Category:Patterns found in 1994|1994]]. It is about the 38th most common naturally-occurring oscillator, being less common than [[boat on spark coil]] and [[griddle and block]], about as common as [[21P2]], and more common than [[trans-block and long hook eating tub]] and [[beacon and long hook|trans-beacon down and long hook]].<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> | '''Fore and back''' (or '''complementary blinker''') is a [[period]] [[:Category:Oscillators with period 2|2]] [[oscillator]] that was found by [[:Category:Patterns found by Achim Flammenkamp|Achim Flammenkamp]] in July [[:Category:Patterns found in 1994|1994]]. It is about the 38th most common naturally-occurring oscillator, being less common than [[boat on spark coil]] and [[griddle and block]], about as common as [[21P2]], and more common than [[trans-block and long hook eating tub]] and [[beacon and long hook|trans-beacon down and long hook]].<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> | ||
Revision as of 15:52, 3 October 2013
Fore and back | |||||||||
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Pattern type | Oscillator | ||||||||
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Number of cells | 24 | ||||||||
Bounding box | 7 × 7 | ||||||||
Period | 2 | ||||||||
Mod | Unknown | ||||||||
Heat | 4 | ||||||||
Volatility | 0.15 | ||||||||
Strict volatility | 0.15 | ||||||||
Discovered by | Achim Flammenkamp | ||||||||
Year of discovery | 1994 | ||||||||
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Fore and back (or complementary blinker) is a period 2 oscillator that was found by Achim Flammenkamp in July 1994. It is about the 38th most common naturally-occurring oscillator, being less common than boat on spark coil and griddle and block, about as common as 21P2, and more common than trans-block and long hook eating tub and trans-beacon down and long hook.[1]
Its rotor is the same as the blinker.
In August, 2013 a 24-glider synthesis of this oscillator was found by Martin Grant, based on a soup, provided by Lewis Patterson. Several days later Mark Niemiec improved this result, having found a 20-glider synthesis.[2]
See also
References
- ↑ Achim Flammenkamp (September 7, 2004). "Most seen natural occurring ash objects in Game of Life". Retrieved on January 15, 2009.
- ↑ "Synthesising Oscillators". Retrieved on September 10, 2013.
External links
- Fore and back at the Life Lexicon
Categories:
- Pages using duplicate arguments in template calls
- Patterns
- Oscillators with 24 cells
- Periodic objects with minimum population 24
- Patterns with 24 cells
- Patterns found by Achim Flammenkamp
- Patterns found in 1994
- Patterns that can be constructed with 20 gliders
- Oscillators
- Oscillators with period 2
- Oscillators with heat 4
- Oscillators with volatility 0.15
- Oscillators with strict volatility 0.15
- Patterns with C2/D2d symmetry