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- 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- 06:41, 10 March 2014 diff hist +58,007 UpLift hanging this out of date story here for a bit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
- 12:11, 15 March 2011 diff hist +1,459 Hundred dollars a kg →Cost reduction
- 19:55, 25 September 2009 diff hist +120 design to cost
- 05:23, 20 September 2009 diff hist +188 dollar a gallon gasoline →Carbon neutral?
- 03:23, 31 August 2009 diff hist +25 Hundred dollars a kg →How much lifted to GEO
- 17:26, 29 June 2009 diff hist +70 design to cost
- 02:38, 12 May 2009 diff hist +24 Texas Lasers current
- 15:17, 10 May 2009 diff hist +575 N Texas Lasers New page: The rocket launch site need to be on the equator with a long stretch of water to the east. For the western hemisphere, the only choice is launching from Brazil. The lasers should be loca...
- 17:10, 24 April 2009 diff hist -22 Hundred dollars a kg →Rockets or lasers?
- 17:07, 24 April 2009 diff hist +16 N File:Rocket mass ratio versus delta-v.png mass ratio graph current
- 02:34, 21 April 2009 diff hist +5 Hundred dollars a kg →Rockets and lasers—pop up and push
- 02:32, 21 April 2009 diff hist -685 Hundred dollars a kg →Rockets and lasers
- 02:11, 11 April 2009 diff hist +8 Hundred dollars a kg →Rockets and lasers
- 21:46, 27 March 2009 diff hist +2,744 Hundred dollars a kg →Rockets and lasers: draft stuff
- 00:15, 2 January 2009 diff hist +7 dollar a gallon gasoline →Size of the problem
- 23:29, 1 January 2009 diff hist +3 dollar a gallon gasoline
- 23:24, 1 January 2009 diff hist +1 dollar a gallon gasoline
- 22:42, 1 January 2009 diff hist -96 dollar a gallon gasoline →Cost
- 22:35, 1 January 2009 diff hist +61 dollar a gallon gasoline →Making synthetic hydrocarbons
- 22:22, 1 January 2009 diff hist +91 dollar a gallon gasoline →Making synthetic hydrocarbons
- 22:15, 1 January 2009 diff hist +362 dollar a gallon gasoline →Cost
- 22:03, 1 January 2009 diff hist +7 dollar a gallon gasoline →Why gasoline?
- 21:40, 1 January 2009 diff hist -8 solar power satellite/Henson-Daniel
- 06:18, 9 December 2008 diff hist +234 Hundred dollars a kg →Cost reduction
- 22:54, 25 November 2008 diff hist +129 Miller's method →International provisions
- 23:02, 22 November 2008 diff hist +12 dollar a gallon gasoline →Carbon neutral?
- 22:59, 22 November 2008 diff hist +4 Hundred dollars a kg →Other low cost ways to GEO
- 21:56, 18 November 2008 diff hist +5 Hundred dollars a kg →Other low cost ways to GEO
- 19:22, 15 October 2008 diff hist +363 Power Sats--PV current
- 05:45, 15 October 2008 diff hist +288 Power Sats--PV
- 20:30, 15 September 2008 diff hist +3,091 N Hundred dollars a kg/Note 1 New page: In theory, with a high efficiency device such as a moving-cable space elevator, the electrical energy to lift a kg from the surface of the earth to GEO is only14.75 kWh/kg. That is under ...
- 19:48, 15 September 2008 diff hist +44 Hundred dollars a kg →Cost reduction
- 18:52, 15 September 2008 diff hist -4 Hundred dollars a kg →How much lifted to GEO
- 18:49, 15 September 2008 diff hist +2 dollar a gallon gasoline →Cost
- 18:45, 15 September 2008 diff hist +744 Talk:dollar a gallon gasoline →Contact data for Keith Henson
- 21:41, 14 September 2008 diff hist +172 dollar a gallon gasoline →Why gasoline?
- 21:18, 14 September 2008 diff hist +196 User talk:Hkhenson →space elevator page editing
- 23:37, 12 September 2008 diff hist -14 Penny a kWh →Penny a kWh electricity
- 23:28, 12 September 2008 diff hist -2 dollar a gallon gasoline →Why gasoline?
- 23:28, 12 September 2008 diff hist +25 dollar a gallon gasoline →Why gasoline?
- 15:54, 31 August 2008 diff hist +192 Hundred dollars a kg
- 15:39, 31 August 2008 diff hist +26 Penny a kWh →Cost of power sats
- 15:37, 31 August 2008 diff hist 0 Penny a kWh →Penny a kWh electricity
- 16:00, 30 August 2008 diff hist +58 Hundred dollars a kg →How much lifted to GEO
- 15:55, 30 August 2008 diff hist +46 User:Hkhenson/moving cable space elevator →Energy
- 17:13, 27 August 2008 diff hist +41 dollar a gallon gasoline →Making synthetic hydrocarbons
- 17:10, 27 August 2008 diff hist +35 dollar a gallon gasoline →Making synthetic hydrocarbons
- 15:29, 27 August 2008 diff hist +36 dollar a gallon gasoline →Making synthetic hydrocarbons
- 15:26, 27 August 2008 diff hist +35 dollar a gallon gasoline →Making synthetic hydrocarbons
- 15:24, 27 August 2008 diff hist +228 dollar a gallon gasoline →Making synthetic hydrocarbons
- 01:21, 25 August 2008 diff hist +30 Hundred dollars a kg →Rockets vs lasers
- 01:27, 21 August 2008 diff hist +64 dollar a gallon gasoline →Why gasoline?
- 22:50, 14 August 2008 diff hist +43 Hundred dollars a kg
- 19:54, 14 August 2008 diff hist +78 Hundred dollars a kg
- 17:08, 13 August 2008 diff hist +1 User talk:Hkhenson
- 17:07, 13 August 2008 diff hist +174 N User talk:Hkhenson New page: This is Keith Henson. There is a Wikipedia page about me that is often attacked by vandals. Contact is hkhenson@rogers.com Phones 928-445-4412 land line 626-264-7560 cell
- 16:13, 13 August 2008 diff hist +27 DTC
- 16:12, 13 August 2008 diff hist +334 N Talk:DTC New page: Nick, I put this page up to have a short URL on a card I distributed so people would not have to type in a long url to get to the dollar a gallon gasoline page. Probably should have done ...
- 16:07, 13 August 2008 diff hist +5 DTC
- 16:07, 13 August 2008 diff hist +365 DTC
- 21:50, 12 August 2008 diff hist +3 Hundred dollars a kg →Cost reduction
- 15:00, 6 August 2008 diff hist +261 Talk:dollar a gallon gasoline →Hi Keith!
- 03:10, 31 July 2008 diff hist +552 Hundred dollars a kg →How much lifted to GEO
- 02:38, 31 July 2008 diff hist +195 Penny a kWh →Penny a kWh electricity
- 02:32, 31 July 2008 diff hist +29 dollar a gallon gasoline →Cost
- 02:28, 31 July 2008 diff hist +30 dollar a gallon gasoline →Making synthetic hydrocarbons
- 02:27, 31 July 2008 diff hist +5 dollar a gallon gasoline →Making synthetic hydrocarbons
- 02:23, 31 July 2008 diff hist +123 Hundred dollars a kg →How much lifted to GEO
- 18:48, 30 July 2008 diff hist +132 dollar a gallon gasoline →Making synthetic hydrocarbons
- 07:52, 30 July 2008 diff hist -520 Hundred dollars a kg
- 07:46, 30 July 2008 diff hist +43 Penny a kWh →Cost of power sats
- 07:45, 30 July 2008 diff hist -3,753 Penny a kWh →Cost of power sats
- 07:36, 30 July 2008 diff hist +60 Penny a kWh →Penny a kWh electricity
- 05:48, 30 July 2008 diff hist +13 dollar a gallon gasoline →Cost
- 05:45, 30 July 2008 diff hist +41 dollar a gallon gasoline
- 02:36, 30 July 2008 diff hist +196 dollar a gallon gasoline →Making synthetic hydrocarbons
- 02:21, 30 July 2008 diff hist +1,196 Penny a kWh
- 02:17, 30 July 2008 diff hist +110 Hundred dollars a kg
- 01:50, 30 July 2008 diff hist +6,390 Hundred dollars a kg
- 01:36, 30 July 2008 diff hist -104 dollar a gallon gasoline
- 00:34, 30 July 2008 diff hist +296 dollar a gallon gasoline →Making synthetic hydrocarbons
- 00:10, 30 July 2008 diff hist +33 dollar a gallon gasoline
- 23:07, 29 July 2008 diff hist +2,652 Penny a kWh
- 02:58, 29 July 2008 diff hist -5 Talk:dollar a gallon gasoline
- 02:58, 29 July 2008 diff hist +129 N User:Hkhenson New page: If you want to know way to much, there is a Wikipedia page. Keith Henson ~~~~ current
- 02:55, 29 July 2008 diff hist +127 N Talk:dollar a gallon gasoline New page: I can definitely use help both with the English and with the models/math. ~~~~
- 02:10, 29 July 2008 diff hist +63 Penny a kWh
- 02:09, 29 July 2008 diff hist +94 Hundred dollars a kg
- 02:02, 29 July 2008 diff hist -29 Penny a kWh
- 02:02, 29 July 2008 diff hist +1,844 Penny a kWh
- 01:59, 29 July 2008 diff hist -2,384 dollar a gallon gasoline
- 01:53, 29 July 2008 diff hist -656 dollar a gallon gasoline →Making synthetic hydrocarbons?
- 01:05, 29 July 2008 diff hist +148 dollar a gallon gasoline →Making synthetic hydrocarbons?
- 00:17, 29 July 2008 diff hist +1,250 dollar a gallon gasoline →How do you make synthetic hydrocarbons?
- 22:06, 28 July 2008 diff hist +12 N Hundred dollars a kg New page: place holder
- 22:05, 28 July 2008 diff hist +13 N Penny a kWh New page: place holder
- 21:14, 28 July 2008 diff hist +133 dollar a gallon gasoline →How do you make synthetic hydrocarbons?
- 20:29, 28 July 2008 diff hist +186 dollar a gallon gasoline →How do you make synthetic hydrocarbons?
- 20:20, 28 July 2008 diff hist +6,772 N dollar a gallon gasoline New page: Demand for petroleum products is growing while existing fields are declining. If it is not already here, peak oil is not far off. One way of engineering, especially for very large mark...
- 07:04, 29 November 2007 diff hist -54 User:Hkhenson/moving cable space elevator
- 14:51, 15 November 2007 diff hist +6,382 N User:Hkhenson/moving cable space elevator New page: ==Background== In the summer of 2006 I was working on a chapter of a novel set beyond the singularity. In the first flashback I explained how the world had almost lost all physical state ...