... I don't have time this morning to address all of this. But quickly. The motor of a solar electric corresponds to the transmission in a turbo mechanical...
... Check out the following link: http://www.nrel.gov/vehiclesandfuels/powerelectronics/about.html It says that advanced electric motors reach about 1 kW/kg...
NASA announced today that it is planning to set up a lunar base by 2024. If this indeed happens then it makes sense to build the first space elevator on the...
Only if it's an equatorial base. It couldn't be done at a polar moonbase, which is a site that has been mentioned frequently, as a way to assure uninterrupted...
Brad Walsh
epibeemie@...
Dec 5, 2006 3:22 pm
7561
It is possible with materials that exist today to attach a space elevator to the lunar south pole. See article about Pearson's design: ...
... I'm curious why you specified the SOUTH pole. Is there some subtle geometric reason, or is it just that we looked for water at the north pole and didn't...
... OK, The home improvement store sell a package of 1 foot square mirrors for about $8 Take one of these and aim it at a target 100 ft away. The result should...
... I found a lot of information at: http://www.gepower.com I also found again the statement that the theoretical efficiency of a stirling is higher than a ...
The physics involved in a Lunar SE are different than an Earth SE. The LSE is taking advantage of the L1 and/or L2 collinear Lagrangian points I believe NASA...
... a stirling is higher than a ... beating the real turbines. ... cycle, so it only applies for a ... turbines have higher operating ... applies to the open ...
... If launching things off the moon is the main objective, a rotating sling would be a much better option. Smaller, cheaper, faster, and higher throughput....
... You sum up the issues well. A few more points. The temp of the cooling system is determined by the working fluid in a steam system. This is and will likely...
Would that still work the same since the rotation of the moon is so slow? For purposes of launching things away from Earth, wouldn't the sling need to be on...
Surely a Lunar circumpolar rotating skyhook would make more sense. Simpler than a conveyer belt. No atmosphere to burn out the hook. If it was kept rotating in...
... a steam ... makes a difference, 212° is the baseline. Pressure makes a lot of difference, and inlet temperatures can be up to 1500°F in existing...
... There are a number of problems with that. The rotating skyhook is longer, it needs propulsion and fuel supply, it needs precision rendezvous capability,...
Andreas, ... My email lost the long response so here's a short one... Ion drive and solar cells. Don't touch down all the way, fire a net up to catch on a...
... Well, yes, but with the sling you need to bother with none of these. And don't forget you need to supply the skyhook with reaction mass regularly. ... Why...
I think the Lunar space elevator will be built first simply because Lunar climber robot motors are tiny and thus a far easier engineering feat (such a mission...
On the moon, for launching payloads on a regular basis, I'd make a mass driver like the one in The Moon Is A Harsh Mistress. They work fine in the vacuum, and...
... Makes sense if you've got ferrous payloads. You need to land stuff too remember. In fact I'd say you are going to be sending more stuff to the moon than...
... and thus a far easier engineering feat (such a mission is nearly possible with today's robotics technology). Even more importantly, they are a far lighter...
Andreas, ... Strictly speaking, yes, but the further away from the equator you get the larger the lateral pull on the cable. I understood this to be ...
Andreas, Ignore this post, I've just caught up with Robert Munck's post on the NSLE. I'll have a shufty at the link when I get a chance. Thanks, Graham...
... The sling IS a mass driver. Compared to an electromagnetic one (which I assume you have in mind), it is far lighter and cheaper to build. Andreas...
... Motor size is dictated by power, which is dictated by throughput. If anything, the sling is mechanically more efficient than the SE. For the same...
... This would be true if engineering were the only issue affecting construction - but it's not. Other factors weighing in include political and economic. ...
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