Lifeline
Lifeline was a newsletter for "enthusiasts of John Horton Conway's game of Life", first edited and published by Robert Wainwright. It was published quarterly, the first issue being in March 1971, and ran for eleven issues. The original newsletter was typewritten and the sheets were stapled together. The newsletter itself followed an enthusiastic response to Martin Gardner's column in Scientific American (October 1970).
A QUARTERLY NEWSLETTER FOR ENTHUSIASTS OF JOHN CONWAY'S GAME OF LIFE O OOOOO OOOOO OOOOO O OOOOO O O OOOOO O O O O O O OO O O O O OOO OOO O O O O O OOO O O O O O O O OO O OOOOO OOOOO O OOOOO OOOOO OOOOO O O OOOOO
| The setup for the whole Lifeline issues data is a work in progress. You can help HERE Thank you! |
Summary of the issues
Volume 1 MARCH 1971
8 pages
- N-ominoes (Polyomino)
- A classification system for Life 'Objects'
- Colliding spaceships
- Subclasses of Class II - Oscillators
- Known Class V (Unstable, predictable) object Life histories
Volume 2 JUNE 1971
18 pages
- Fates of the last four unknown heptominoes
- An expanded classification system for finite Life objects
- Examples for each objects class
- Coming events
- A comprehensive file of information generated by life experimenters
- Boltwood's Life program in FORTRAN
Volume 3 SEPTEMBER 1971
32 pages
- Smallest still life objects : 4 to 9 cells
- The variety of flip-flop symmetry
- Shuttles, flottillae, glider guns, puffer trains
- The Breeder (photographed on page 1)
- Methuselahs' census
- Spaceship factories
- Acorn data - generations, contents of the final population ('oak tree')
- A classification system for 'wicks' (one-dimensionally infinite objects)
- Illusion of motion' (IoM)
- A summary of fuses
- A classification system for 'agars' (two-dimensionally infinite objects)
- The smallest area that should contain a Garden of Eden (GoE) pattern
- Coming events
Volume 4 DECEMBER 1971
12 pages
- Publisher R. T. Wainwright willing to be an antecessor
- The incredible 'Switch engine'
- Diagonal puffer train
- Methuselah census
- 'Natural pentadec'(athlon)
- Toroidal surface and variations to Conway's basic rules
- Coming events
- Lifefile - Thompson's codex system for known Life objects
Volume 5 SEPTEMBER 1972
7 pages
- New discoveries sent in by 'Buckinghams Combine'
- Summary of Conway' Life rules
- HOW TO PLAY LIFE
- Class E, Evolutionaries, Exercises, Et cetera . . .
- Class I, Still Lifes and Stable Forms . . .
- Class II, Oscillators . . .
- Reader Article: The Period 12 'Line·Block' Oscillator by Edward Fitzgerald, David Lawson, and Tad Marshall of Irvington, N.Y.
- Excursions Into Other Universes . . .
- Answers to Reader Exercises
- COMING EVENTS
- RANDOM BITS (Thompson has tracked 19,000+ patterns, 71 different two-glider collisions, ...)
- LIFELINE EDITORIAL BOARD
- LIFE SAVER survey
Volume 6 OCTOBER 1972
| Page 1 | Two conjectures by JHC: Grandfather Problem and Unique Father Problem |
| Page 2 | Class E, Evolutionaries, Exercises, Et cetera . . . 'LIFEXPLANATIONS' by Peter Raynham Reader Briefs ... • Mark Horton on a figure conservatively interacting • Christopher Scussel on the collision of a glider and a lightweight spaceship • Lee H. Skinner on still lifes |
| Page 3 | Class II, Oscillators . . . Lifeobservation by Glenn Puro regarding a UFO formation |
| Page 4 | Lifecomics by Richard Holmes and Traw Excursions Into the Universe of '3-4' Life . . . |
| Page 5 | Moore-Myhill criterion for existance of Garden of Eden configurations. (Reader Article by Frank Bernhart) |
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| Page 8 | Class III, Spaceships and Pure Glider Generators . . . Lifequote |
Volume 7 NOVEMBER 1972
| Page 1 | Another challenge by JHC: Immovable object problem and The Irresistible Force Problem. Research in Occult Symbology - Part I by Curt Gibson, New York City |
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| Page 3 | Class E, Evolutionaries, Events, Et cetera: Lifeobservation by Glenn Puro regarding a UFO formation |
| Page 4 | More LIFEEXPLAINATIONS by Raynham Lifequote Lifecomic by Richard Holmes reader Article: Fly-by Fuses, a Second Flight by Donald Woods |
| Page 5 | Excursions Into the Universe of '3-4' Life . . . |
| Page 6 | Period five wick Lifecomic by Traw Regarding the 'Titanic Toroidal Traveler' by W. P. Webb |
| Page 7 | Observation by Bruce Parrello and David Tetenbaum about a glider and pentadecathlon scenario |
| Page 8 | Regarding the 'Titanic Toroidal Traveler' - continued from page 6 Reader Briefs: • Dean Hickerson: billiard table construction • Editor's Errors and Embarassment • Mark Horton's 'five' • Buckingham's 'five' • Answer to reader query • Lifecomic by Niemiec • Coming Events |
Volume 8 DECEMBER 1972
| Page 1 | Recent findings: • new type of puffer train • collisions of gliders and blocks to assemble spaceship guns and logical circuitry for a Life computer 'Buckinghams Combine' revisited . . . |
| Page 2 | Class E, Evolutionaries, Exercises, Events, Et cetera . . . Class I, Still Lifes and Stable Forms . . . LIFEXPLAINATIONS Ten-bit Still Lifes Class II, Oscillators . . |
| Page 3 | Progress on the "Life Codex" by Hugh W. Thompson |
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| Page 5 | Sample "Life Codex" page Class II, Oscillators . . . (cont. from page 2) Reader Briefs . . . |
| Page 6 | SDL company logo Excursions Into the Universe of '3-4' Life . . . |
| Page 7 | Reregarding the 'Titanic Toroidal Traveler' by David Buckingham Lifequote Life saver: Lifeline order form |
| Page 8 | Regarding those 'Titanic Toroidal Travelers' by R. Wm. Gosper, Jr. Lifecomic by Harry J. Riley Lifequote by William Feather Coming Events back of order form |
Volume 9 MARCH 1973
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Volume 10 JUNE 1973
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Volume 11 SEPTEMBER 1973
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Conventions
Lifeline uses the following conventions not used in this wiki:
- Θ
- stands for "nothing" (defined in vol 3 page 20)
- ALD
- average linear density (defined in vol 3)
Scans of all Lifeline newsletters
The Lifeline project includes page images of the remaining Lifeline newsletters that have not yet been transcribed into text format.
gollark: The Hellrage one or whatever it is doesn't, as far as I know, run on Linux.
gollark: It would also be nice to have an item list, actually. I can count them manually, it's just annoying.
gollark: It should probably be programmed to drop unnecessary coolers. Somehow.
gollark: -generate 4x4x4 efficiency no cryotheum no helium no enderium MOX-241
gollark: Thanks, magic optimization algorithms!
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