Lightspeed bubble: Difference between revisions
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A '''lightspeed bubble''' is a type of [[negative spaceship]] traveling through the [[zebra stripes]] [[agar]]. The center of the bubble is simple empty space, and the length and/or width of the bubble can usually be extended to any desired size. | A '''lightspeed bubble''' is a type of [[negative spaceship]] traveling through the [[zebra stripes]] [[agar]]. The center of the bubble is simple empty space, and the length and/or width of the bubble can usually be extended to any desired size. | ||
Below is a small stabilized section of agar containing a sample lightspeed bubble, found by [[Gabriel Nivasch]] in August | Below is a small stabilized section of agar containing a sample lightspeed bubble, found by [[Gabriel Nivasch]] in August {{year|1999}}. The bubble travels to the left at the [[speed of light]], so it will eventually reach the edge of any finite patch and destroy itself and its supporting agar. | ||
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An open problem related to lightspeed bubbles was whether large extensible empty areas could be created whose length was not proportional to the width (as it must be in the above case, due to the tapering back edge). This was solved in February | An open problem related to lightspeed bubbles was whether large extensible empty areas could be created whose length was not proportional to the width (as it must be in the above case, due to the tapering back edge). This was solved in February {{year|2017}} by [[Arie Paap]]; a simple period-2 solution is shown below. | ||
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Revision as of 04:42, 28 December 2019
A lightspeed bubble is a type of negative spaceship traveling through the zebra stripes agar. The center of the bubble is simple empty space, and the length and/or width of the bubble can usually be extended to any desired size.
Below is a small stabilized section of agar containing a sample lightspeed bubble, found by Gabriel Nivasch in August 1999. The bubble travels to the left at the speed of light, so it will eventually reach the edge of any finite patch and destroy itself and its supporting agar.
| (click above to open LifeViewer) RLE: here Plaintext: here |
An open problem related to lightspeed bubbles was whether large extensible empty areas could be created whose length was not proportional to the width (as it must be in the above case, due to the tapering back edge). This was solved in February 2017 by Arie Paap; a simple period-2 solution is shown below.
| (click above to open LifeViewer) RLE: here Plaintext: here |
External links
- Lightspeed bubble at the Life Lexicon