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- 04:41, 18 September 2019 diff hist -267 Darwin's difficulty
- 04:17, 18 September 2019 diff hist -47 Darwin's difficulty
- 04:11, 18 September 2019 diff hist +2 Darwin's difficulty
- 04:09, 18 September 2019 diff hist +11 Darwin's difficulty
- 04:06, 18 September 2019 diff hist +1 Darwin's difficulty
- 03:57, 18 September 2019 diff hist +23,191 N Darwin's difficulty Historical memetics article
- 21:45, 6 August 2019 diff hist +174 Mining Asteroids →Mining asteroids by Keith Henson
- 18:38, 15 July 2019 diff hist 0 N File:LaserDetail.jpg current
- 18:35, 15 July 2019 diff hist 0 N File:3GWLaser.jpg current
- 18:27, 15 July 2019 diff hist +67 design to cost →Fast links to Power Satellite topics
- 22:02, 30 December 2018 diff hist +4 design to cost →Fast links to Power Satellite topics
- 21:58, 30 December 2018 diff hist -33 design to cost →Fast links to Power Satellite topics
- 21:49, 30 December 2018 diff hist +56 N File:Oil Drum Rays of Hope with pix.doc out of date file. historical reasons only current
- 20:01, 30 December 2018 diff hist +7 Mining Asteroids →Process details
- 19:55, 30 December 2018 diff hist +156 Mining Asteroids →Bootstrapping
- 19:18, 30 December 2018 diff hist +18 Mining Asteroids →What it would cost to mine this asteroid
- 06:34, 30 December 2018 diff hist +307 Mining Asteroids →Bootstrapping
- 05:37, 30 December 2018 diff hist -8 Mining Asteroids →What it would cost to mine this asteroid
- 05:36, 30 December 2018 diff hist +79 Mining Asteroids →What it would cost to mine this asteroid
- 00:32, 4 November 2018 diff hist +188 design to cost →Power Point
- 20:05, 25 January 2018 diff hist +391 design to cost →Other links
- 23:24, 24 January 2018 diff hist +106 m design to cost
- 18:56, 27 December 2017 diff hist -1 m Mining Asteroids →Process details: fixed typos
- 18:24, 20 October 2017 diff hist -6 design to cost →Power Point
- 18:22, 20 October 2017 diff hist +6 design to cost →Power Point
- 17:21, 20 October 2017 diff hist +4 design to cost →Power Point
- 17:19, 20 October 2017 diff hist -85 design to cost →Power Point
- 17:17, 20 October 2017 diff hist 0 N File:REL2.pdf current
- 23:52, 4 June 2017 diff hist +1 design to cost →Fast links to Power Satellite topics
- 23:48, 4 June 2017 diff hist +1 design to cost →Power Point
- 23:48, 4 June 2017 diff hist +7 design to cost →Video Animations
- 18:27, 3 June 2017 diff hist +4 design to cost
- 18:24, 3 June 2017 diff hist +34 design to cost
- 18:22, 3 June 2017 diff hist 0 N File:Skylon and StratoLaunch.jpg current
- 22:57, 29 November 2016 diff hist +81 design to cost →Power Point
- 21:53, 29 November 2016 diff hist +31 N File:SMF 1975 Closed Ecosystems Chapter.pdf Space Farm paper from long ago. current
- 21:45, 29 November 2016 diff hist 0 design to cost →Fast links to Power Satellite topics
- 17:33, 26 November 2016 diff hist +28 design to cost →Other links
- 17:31, 26 November 2016 diff hist 0 design to cost →Power Point
- 17:30, 26 November 2016 diff hist +4 design to cost →Power Point
- 17:29, 26 November 2016 diff hist +43 design to cost
- 16:41, 26 November 2016 diff hist +869 design to cost
- 07:31, 28 September 2016 diff hist +138 design to cost
- 02:19, 23 July 2016 diff hist +3 design to cost
- 01:59, 17 July 2016 diff hist -6 design to cost
- 05:29, 13 July 2016 diff hist +883 design to cost added links
- 19:13, 6 July 2016 diff hist +38 m design to cost
- 19:40, 1 July 2016 diff hist +659 design to cost new stuff
- 06:35, 16 March 2016 diff hist +127 design to cost
- 15:39, 4 July 2015 diff hist +1,098 design to cost update
