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- 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
- 15:29, 7 May 2015 diff hist +1 Mining Asteroids →Process details: updates
- 15:23, 7 May 2015 diff hist +120 Mining Asteroids →Bootstrapping
- 15:17, 7 May 2015 diff hist +64 Mining Asteroids →What it would cost to mine this asteroid
- 15:40, 15 April 2014 diff hist +2 design to cost
- 15:38, 15 April 2014 diff hist +1 design to cost update
- 20:04, 21 March 2014 diff hist +1,009 design to cost
- 06:43, 10 March 2014 diff hist +1 UpLift
- 06:43, 10 March 2014 diff hist -9 UpLift
- 06:41, 10 March 2014 diff hist +58,007 UpLift hanging this out of date story here for a bit
- 05:10, 10 March 2014 diff hist +959 N UpLift Created page with "=UpLift: A story of Space Elevators and Power Satellites= ==plus a bit on Mining Asteroids== By Keith Henson (Draft March 9, 2014 ~10,000 words) '''June 2025''' ==The cave..."
- 03:31, 10 March 2014 diff hist +8 N File:Uplift after hemingway.doc MsUpload current
- 18:28, 9 January 2014 diff hist +175 m Mining Asteroids added ref
- 22:28, 2 January 2014 diff hist +789 design to cost added more about laser beam problems
- 16:30, 24 December 2013 diff hist +88 design to cost
- 05:21, 21 December 2013 diff hist +49 N File:Solar PV Experience.jpg Price per watt vs cumulative installations of PV. current
- 04:14, 5 December 2013 diff hist +13 design to cost added/updated material, added Laser Skylon pix.
- 04:04, 5 December 2013 diff hist +23 design to cost
- 03:58, 5 December 2013 diff hist +709 design to cost
- 18:50, 24 September 2013 diff hist +3 m Talk:dollar a gallon gasoline →Contact data for Keith Henson current
- 19:50, 10 September 2013 diff hist +52 N File:Power Satellite business model with CO2.xls Excel model of power satellite business by quarters. current
- 21:47, 2 September 2013 diff hist +296 N File:SkylonLaser.jpg Laser powered modified Skylon near the end of acceleration to LEO on hydrogen heated by 3 GW of lasers located in GEO. The exhaust velocity of the hot hydrogen is close to 7.5 km/s. Base artwork courtesy of Reaction Engines, Ltd., modified by Barbar... current
- 17:45, 12 April 2013 diff hist +8 m Mining Asteroids →Process details
- 17:02, 29 June 2012 diff hist +87 Laser propulsion current
- 16:04, 29 June 2012 diff hist +9 Laser propulsion
- 15:59, 29 June 2012 diff hist +22 Laser propulsion
- 15:57, 29 June 2012 diff hist +41 N File:Power sat PandL.jpg First cut power sat P&L, laser propulsion current
- 15:48, 29 June 2012 diff hist +165 N File:Laser propulsion business model.xls First cut at a business model using lasers in space to provide propulsion for LEO to GEO and then end of air breathing to LEO Produced by Keith Henson June 29, 2012 current
- 15:44, 29 June 2012 diff hist +1,454 N Laser propulsion Created page with "Laser propulsion to build power sats, first cut. This rough model uses bootstrapping to build 3.5 GW of propulsion lasers powered from a power sat built only to power the las..."
- 19:46, 10 June 2012 diff hist +558 Nm Special:Badtitle/NS90:Talk:Mining Asteroids/Rubble Pile Variable for Mining Asteroids/reply Reply to Rubble Pile Variable for Mining Asteroids current
- 12:55, 9 June 2012 diff hist +1 Mining Asteroids
- 12:52, 9 June 2012 diff hist +14,712 N Mining Asteroids Created page with "=Mining asteroids by Keith Henson= June 9 Draft temp post as a wiki for comment! ''This article provides a rough analysis of mining an asteroid for gold and other high value..."
- 22:42, 21 May 2012 diff hist +96 Penny a kWh →Thermal alternative to PV current
- 22:37, 21 May 2012 diff hist +393 Penny a kWh →Cost of Space Based Solar Power
- 17:15, 8 March 2012 diff hist +387 Penny a kWh →Cost of Space Based Solar Power
- 23:07, 18 October 2011 diff hist +421 SBSP--specific power current
- 03:32, 18 October 2011 diff hist +725 N SBSP--specific power Created page with "The specific power in kg/kW for a power satellite is a critical number for evaluating the economics of this method of power production. Multiplied by the cost per kg for the lif..."
- 13:59, 21 September 2011 diff hist +56 Beamed energy propulsion →Numerical investigation of a Gausian power beam heating a surface cooled with hydrogen and re-radiating
- 15:10, 15 September 2011 diff hist 0 File:Re radiation gausian input.xls uploaded a new version of "File:Re radiation gausian input.xls": Error in computation of Reynolds number current
- 21:57, 29 August 2011 diff hist +32 Penny a kWh →Cost of power sat energy
- 20:33, 29 August 2011 diff hist +88 dollar a gallon gasoline →Carbon neutral?
- 20:29, 29 August 2011 diff hist +53 dollar a gallon gasoline →Cost
- 20:19, 29 August 2011 diff hist +27 dollar a gallon gasoline →Making synthetic hydrocarbons
- 20:18, 29 August 2011 diff hist +128 dollar a gallon gasoline →Making synthetic hydrocarbons
- 20:03, 29 August 2011 diff hist +24 dollar a gallon gasoline →Why gasoline?
- 20:01, 29 August 2011 diff hist -35 dollar a gallon gasoline →Size of the energy problem
- 14:39, 25 August 2011 diff hist +94 Beamed energy propulsion →Numerical investigation of a Gausian power beam heating a surface cooled with hydrogen and re-radiating
- 14:36, 25 August 2011 diff hist +104 Beamed energy propulsion →Numerical investigation of a Gausian power beam heating a surface cooled with hydrogen and re-radiating
- 03:03, 25 August 2011 diff hist +26 Beamed energy propulsion →Numerical investigation of a Gausian power beam heating a surface cooled with hydrogen and re-radiating
- 02:49, 25 August 2011 diff hist -5 Beamed energy propulsion →Numerical investigation of a Gausian power beam heating a surface cooled with hydrogen and re-radiating
- 02:45, 25 August 2011 diff hist +26 Beamed energy propulsion →Numerical investigation of a Gausian power beam heating a surface cooled with hydrogen and re-radiating
- 14:54, 24 August 2011 diff hist +53 N File:Heater.jpg Output of model, gausian heating of flowing hydrogen. current
- 14:08, 24 August 2011 diff hist +25 Beamed energy propulsion →Numerical investigation of a Gausian power beam heating a surface cooled with hydrogen and re-radiating
- 14:06, 24 August 2011 diff hist +20 Beamed energy propulsion →Numerical investigation of a Gausian power beam heating a surface cooled with hydrogen and re-radiating
- 16:06, 17 August 2011 diff hist -12 Beamed energy propulsion →Numerical investigation of a Gausian power beam heating a surface cooled with hydrogen and re-radiating
- 15:49, 17 August 2011 diff hist +57 N File:Re radiation gausian input.xls Hydrogen heater with gausian heating and flowing hydrogen
- 19:00, 16 August 2011 diff hist +74 Beamed energy propulsion
- 18:27, 16 August 2011 diff hist +2,733 N Beamed energy propulsion Created page with "The two big names in the field are Jordin Kare and Kevin Parkin. My contributions are usually about fitting beamed energy propulsion into the larger picture of power satellites...."
- 16:17, 22 July 2011 diff hist +70 Space radiator current
- 16:11, 22 July 2011 diff hist +302 Space radiator
- 16:04, 22 July 2011 diff hist +45 N Space radiator Created page with "Trying an upload here: Space_Radiator.jpg"
- 16:01, 22 July 2011 diff hist +142 N File:Space Radiator.jpg Collector plus radiator area per kW as a function of radiator temperature. Created by Keith Henson and posted under creative commons license. current
- 23:05, 24 June 2011 diff hist +110 N File:Exhaust velocity vs cost.pdf Based on a calculation I ran of the cost per kg to GEO vs the exhaust velocity for a Skylon. Data on request. current
- 12:34, 15 March 2011 diff hist +966 Hundred dollars a kg →Second approach current
- 12:25, 15 March 2011 diff hist -1 Hundred dollars a kg →First method
- 12:18, 15 March 2011 diff hist -13 Hundred dollars a kg →Cost reduction
- 12:16, 15 March 2011 diff hist -17 Hundred dollars a kg →Rockets and lasers—pop up and push