Onion rings
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| Onion rings | |||||||||
| View static image | |||||||||
| Pattern type | Agar | ||||||||
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| Period | 1 | ||||||||
| Density | 0.5 | ||||||||
| Discovered by | Unknown | ||||||||
| Year of discovery | Unknown | ||||||||
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Onion rings is the name of an agar of density ½ whose unit cell is composed of nested squares, which are fancied as resembling the rings of an onion.
A family of agars
Onion rings can be thought of as one specific member of a family of agars whose unit cells are 4n × 4n for a given n>1, further subdivided into quadrants; for the canonical onion rings agar, n is equal to 3.
In each agar, the NE and SW quadrants contain onions with a block core, while the NW and SE quadrants contain complementary onions. This arrangement inhibits all straight edges from sprouting live cells; each member of the family is a still life covering the entire infinite plane.
Gallery
A few different members of the extended onion rings family of agars are shown below:
n=2
n=3
n=4
n=5
See also
- Tablecloth agar
External links
- Onion rings at the Life Lexicon