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- Not to be confused with blinker.
A line of three is a three cell leading edge on an object or part of object.
A line of three consecutive cells can be a segment known as "line" in certain still lifes; the most basic of these being integral sign but can also be used to connect any number of pre-blocks, tubs, beehives, loaves, mangoes, hooks, claws, etc. together. One example is boat line hook.
It can also be seen in oscillators such as spark coil and test tube baby and other oscillators with the orthogonal on-off rotor.
|The line of threes (white) in test tube baby.|
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Some induction coils such as G (induction coil), house and honeycombinator contain a line of three.
Lines of three in the form of a c/2 frontend are extremely versatile in catalysis, as they can be catalysed by Eater 1, Block, Toad and Beehive push catalyst. This is exploited in virtually all conduits, shuttles and hasslers