Bookend

Bookend (or hook) is generation 1 of century and an induction coil.

Bookend
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Pattern type Induction coil
Number of cells 7
Bounding box 4×3
Discovered by Unknown
Year of discovery Unknown

Many patterns that can be stabilized using bookends can also be stabilized using the smaller snake, but sufficiently wide walls (width-7) require using either this or the largely equivalent bun. An example appears in the champagne glass oscillator.

It can also be seen as a cis version of the eater 1.

See also
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