![]() ![]() Sometimes, more sparse arrangements of blocks are also described as block agars. The block agar is an agar consisting of blocks arranged periodically in rows and columns, with distance of 1 cell between any two adjacent rows or columns. Block agar and block arrays Main article: Block agar It's possible to arrange blocks in a way that can be triggered by a single glider to produce any glider-constructible pattern. A particular reaction with a B-heptomino is commonly used in the construction of Herschel tracks.īlockic constellation Main article: BlockicĪ blockic constellation is a constellation consisting entirely of blocks. Several larger oscillators including p54 shuttle, 78P70, two blockers hassling R-pentomino and Achim's p144 are examples. Since the block is the most common object to emerge from soups, it is also the most common object to show transparent debris effect, as described above. Eater 2 is a construction allowing a block to eat gliders: while the collision would normally destroy both, the addition of further still life(s) or inductees allows the remaining three-cell spark to regenerate into a block. Some more complex eaters can be based on the block as well. It has been seen eating mangos, boats, loaves, and beehives. A different mechanism yet, where only a single cell of the original block survives the whole ordeal, appears in 37P7.1. ![]() Oscillators such as blocker, p56 B-heptomino shuttle, queen bee shuttle, twin bees shuttle and unix showcase mechanisms which leave a pre-block or a hook, while the mechanisms seen in Coe's p8, eater 5 and octagon 4 leave a grin. These fall into roughly two camps, according to how the block will be regenerated (since the block's cells already have three neighbors, it cannot act as a rock, except through induction, such as the p47 pre-pulsar shuttle). There are multiple ways in which the block may act as a catalyst. For example, it can work as a reflector for two gliders via the interchange synthesis, as can be seen in 106P135. The block sees a diverse array of uses in larger patterns. Given the high symmetry of the block (the highest a pattern can have on the square grid), cis-, trans- and other isomeric variants only arise if the object stabilised by the block is itself of a sufficiently low symmetry.Įxamples of known still lifes which use the block as an induction coil are as follows:īlocks can also be used to stabilise certain oscillators in a non-catalytic fashion, with examples as follows: As such, its uses are limited to acting as an induction coil. Due to its high density, orthogonal and diagonal connections (like those seen in ship-tie) would overpopulate any present cells, preventing any patterns with this arrangement from being useful in a still life (this reaction can instead be used for oscillators such as beacon and variants of star). The block was one of the patterns described in the original 1970 article by Martin Gardner that introduced the Game of Life to the world.īlocks serve useful in the construction of larger still lifes. ![]() Its small size, ability to act as a catalyst, and simple glider syntheses make it extremely useful in the construction of larger patterns. It is also the only known still life that is a polyomino, and the only finite strict still life where all living cells have three neighbors. In terms of its 4 cells it is tied with tub as the smallest still life, and in terms of its 2 × 2 bounding box it is the outright smallest. #C ]īlock is an extremely well-known and common still life that was found by John Conway in 1970. ![]()
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