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Zubrin's *Entering Space*   Message List  
Reply | Forward Message #233 of 377 |
Zubrin got it wrong. His focus on Mars perhaps distorted his views on
the subject. Mike Combs has a nice "debunking" here:

http://members.aol.com/oscarcombs/spacsetl.htm#zubrin

On the comparison of terrestrial and space solar power, the effects of
launch and other costs, etc., there is my article on the subject
available here:

http://www.aps.org/units/fps/newsletters/2004/april/article2.cfm
PDF: http://www.nsschapters.org/ny/longisland/articles/fetter_jan_05.pdf

(the html version lost some subscripts and mathematical notation).

Arthur
Wed Jul 5, 2006 1:41 pm

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arthurpsmith
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Forward 		Message #233 of 377 |
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Zubrin got it wrong. His focus on Mars perhaps distorted his views on the subject. Mike Combs has a nice "debunking" here: ... 		Arthur Smith
arthurpsmith
Offline Send Email 		Jul 5, 2006
1:55 pm

"When Zubrin factors in lack of cloudy atmosphere, and the ability to track the sun, together with conversion efficiencies, he calculates an orbital solar...
Terry Wilson
aftercolumbia2
Offline Send Email 		Jul 9, 2006
4:17 pm

From: solarpowersatelliteplace@yahoogroups.com [mailto:solarpowersatelliteplace@yahoogroups.com] On Behalf Of Terry Wilson Here Mike Combs has not defined a...
Combs, Mike
mikecombs
Offline Send Email 		Jul 14, 2006
3:52 am

... Weren't they using L1? Anyway, having read High Frontier, it is obvious that O'Niell has underestimated targeting, rendezvous and docking difficulties. On...
Terry Wilson
aftercolumbia2
Offline Send Email 		Jul 14, 2006
8:44 pm

Terry, If you read my "Science and Society" article, you'll note SPS launched from Earth may compete economically with base power plants (nuclear, coal -...
Arthur Smith
arthurpsmith
Offline Send Email 		Jul 10, 2006
12:21 am

... plants ... launch ... costs) ... That's easy, I think ... space ... below 0.1 ... As for these two, I don't think that it is possible do both at the same...
aftercolumbia2
Offline Send Email 		Jul 11, 2006
5:45 am

I apologize for not including your text in my response, but Yahoo!'s new html formatting makes that somewhat difficult. I find your pessimism about solar...
Arthur Smith
arthurpsmith
Offline Send Email 		Jul 11, 2006
2:36 pm

... Gmail is excellent for managing group mail, and is pretty good at annotated responses like this one. I sent you an invitation email...if you got good spam...
Terry Wilson
aftercolumbia2
Offline Send Email 		Jul 11, 2006
9:49 pm

I've decided that the best way to fix this is to take it from the horse's mouth. He goes in W/kg and so does OECD and CRC books, so that's what I'll use. ...
Terry Wilson
aftercolumbia2
Offline Send Email 		Jul 12, 2006
4:36 am

So Zubrin's estimates improved the cost effectiveness of SPS by a factor of 16 in just a few years? I suppose that's encouraging... For current communications...
Arthur Smith
arthurpsmith
Offline Send Email 		Jul 12, 2006
2:08 pm

... No, mine did. ... All indications I have are that launch costs are 40% total cost of launching a commercial satellite, and have been in this ballpark since...
Terry Wilson
aftercolumbia2
Offline Send Email 		Jul 12, 2006
10:03 pm
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