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| {{Puffer|name=Block-laying switch engine|bx=29|by=28|pname=blocklayingswitchengine|c=43|p=288|s=c/12|dir=Diagonal|discoverer=Charles Corderman|life105=true|life106=true|plaintext=true|rle=true|synthesis=5|synthesisRLE=true}}
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| The '''block-laying switch engine''' (or '''block-making switch engine''') is a [[puffer]] that was found by [[:Category:Patterns found by Charles Corderman|Charles Corderman]]. It consists of a [[switch engine]] reacting with [[block]]s to create an infinite number of new blocks (eight new blocks every 288 [[generation]]s).
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| It is the most common naturally-occurring pattern that exhibits [[infinite growth]], and is one of only two patterns that exhibits infinite growth that has been known to occur naturally (the other being the [[glider-producing switch engine]]).
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| Because of its easy construction (see the predecessor below), it has appeared in some superlinear growth patterns including [[mosquito 1]] and [[mosquito 2]].<ref>{{Cite web|url=http://www.argentum.freeserve.co.uk/lex_m.htm#mosquito1|title=Mosquito 1|author=Stephen Silver|publisher=The Life Lexicon|accessdate=June 1, 2009}}</ref>
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| ==Image gallery==
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| {|
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| |[[Image:Blocklayingswitchengine_debris.png|framed|left|The blocks left behind by the block-laying switch engine]]
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| |[[Image:Blocklayingswitchengine_pred.png|framed|left|A simple [[predecessor]] of the block-laying switch engine<br />{{JavaRLE|blocklayingswitchenginepredecessor|brief}}]]
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| |}
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| ==References==
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| <references />
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| ==External links==
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| *[http://www.pentadecathlon.com/objects/class4/typeB/SwitchEngine1/switchEngine1.php Single switch engine puffer trains] at the Life Objects Catalog
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