28P7.2: Difference between revisions
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{{Oscillator|name=28P7.2|pname= | {{Oscillator|name=28P7.2|pname=28p7.2|c=28|p=7|bx=12|by=11|h=5.1|discoverer=Dean Hickerson|animated=yes|life105=true|life106=true|plaintext=true|rle=true|synthesis=22|synthesisRLE=true}} | ||
'''28P7.2''' is an unnamed [[period]] [[:Category:Oscillators with period 7|7]] [[oscillator]] discovered by [[Dean Hickerson]] sometime between [[:Category:patterns found in 1997|1997]] and November 24, [[:Category:patterns found in 1998|1998]].<ref>Dean Hickerson's "[http://radicaleye.com/DRH/nbt.html New billiard tables]" oscillator collection</ref> In terms of its 28 [[cell]]s, it is tied with oscillators [[burloaferimeter]] and [[28P7.1]] as the smallest known period 7 oscillator.<ref>{{cite web|url=http://pentadecathlon.com/objects/class2/class2.php?part=2 |title=Class 2 Objects Catalog |accessdate=March 14, 2009}}</ref> | '''28P7.2''' is an unnamed [[period]] [[:Category:Oscillators with period 7|7]] [[oscillator]] discovered by [[Dean Hickerson]] sometime between [[:Category:patterns found in 1997|1997]] and November 24, [[:Category:patterns found in 1998|1998]].<ref>Dean Hickerson's "[http://radicaleye.com/DRH/nbt.html New billiard tables]" oscillator collection</ref> In terms of its 28 [[cell]]s, it is tied with oscillators [[burloaferimeter]] and [[28P7.1]] as the smallest known period 7 oscillator.<ref>{{cite web|url=http://pentadecathlon.com/objects/class2/class2.php?part=2 |title=Class 2 Objects Catalog |accessdate=March 14, 2009}}</ref> In September, [[:Category:patterns found in 2000|2000]] [[Mark Niemiec]] and [[Jason Summers]] found a [[:Category:patterns that can be constructed with 22 gliders|22]]-[[glider]] [[Glider synthesis|synthesis]] of this oscillator.<ref>{{CiteSummersPattern|name=jslife}}</ref> | ||
==References== | ==References== | ||
<references /> | <references /> | ||
Revision as of 00:01, 23 July 2009
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| Pattern type | Oscillator | ||||||||
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| Number of cells | 28 | ||||||||
| Bounding box | 12 × 11 | ||||||||
| Period | 7 (mod: Unknown) | ||||||||
| Heat | 5.1 | ||||||||
| Volatility | Unknown | Unknown | ||||||||
| Kinetic symmetry | Unspecified | ||||||||
| Discovered by | Dean Hickerson | ||||||||
| Year of discovery | Unknown | ||||||||
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28P7.2 is an unnamed period 7 oscillator discovered by Dean Hickerson sometime between 1997 and November 24, 1998.[1] In terms of its 28 cells, it is tied with oscillators burloaferimeter and 28P7.1 as the smallest known period 7 oscillator.[2] In September, 2000 Mark Niemiec and Jason Summers found a 22-glider synthesis of this oscillator.[3]
References
- ↑ Dean Hickerson's "New billiard tables" oscillator collection
- ↑ "Class 2 Objects Catalog". Retrieved on March 14, 2009.
- ↑ Jason Summers' jslife pattern collection.