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  • Adam Goucher
  • Dave Greene

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2005 December 18

Greyships & Spacefillers
Fixed-Width and Slipping-Stripe Greyships

Here are a few more greyships and related patterns constructed recently by Hartmut Holzwart:

2005-12-15-p9-wick-ship.rle

fixed-width 2c/4 spaceship supporting a p9 wick
Hartmut Holzwart, 15 December 2005

2005-12-13-fixed-w-greyship.rle

long and short versions of a fixed-width perpendicular greyship
Hartmut Holzwart, 13 December 2005

2005-12-13-fixed-w-greyship2.rle

simpler fixed-width perpendicular greyship
Hartmut Holzwart, 13 December 2005

2005-11-28-slipping-stripes2.rle

alternate mirror-symmetric pattern showing Gabriel Nivasch's
slipping-stripe reaction: Hartmut Holzwart, 28 November 2005

The following two patterns are "failed spacefillers" — they expand in the same way as a standard spacefiller for a while, until an internal instability in the boundary between the two types of stripes catches up with an expanding edge.
2005-11-21-slipping-stripes.rle

trial pattern showing a slipping-stripe reaction sent in
by Gabriel Nivasch: Hartmut Holzwart, 21 November 2005

These last two patterns, along with many of the greyships from previous postings, can also be seen here in MCell holiday colors.