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Messages 6806 - 6835 of 9015   Oldest  |  < Older  |  Newer >  |  Newest
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6806
... operators would be more likely to be customers of such a business; they're the only parties likely to be willing to pay for the cleanup to be done. I...
Mike Walker
tacitus
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Dec 2, 2005
5:57 pm
6807
I recently read (Wired article)that the "winner" of the elevator 2010 contest was an off-the-shelf non-nanotube rope. Were any of the contestants made of...
Keith Shultz
kshultz222
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Dec 2, 2005
6:18 pm
6808
... The nearest to a winner was commercial spectra (kite flying cord I believe) tied with a fisherman's knot to prevent the cord cutting itself. Byran...
aprice@...
aprice2704
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Dec 2, 2005
10:04 pm
6809
hi got this from http://www.halfbakery.com/ page http://www.halfbakery.com/idea/Elevator_20to_20Space/addlink#addlink "Per [MauiChuck]'s earlier question,...
Fred Louch
customcobler
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Dec 4, 2005
6:36 pm
6810
i am in the 'recycling' business and always had a dream about collecting space debris ;-) very interested in the info .. anyone knows ? ..peekay ... From:...
peekay
pksharmakolkata
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Dec 4, 2005
6:37 pm
6811
The standard of argument at the half-bakery site is exceptionally low -- about many things, not just the SE. Even slashdot is better. Nevertheless ... Assuming...
aprice@...
aprice2704
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Dec 4, 2005
8:54 pm
6812
"LEO clean-up may not be a "direct" application of the SE, but since the SE is all about cheaper spaceflight, it could lower the cost of entry into the space...
spacelifejunkie
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Dec 6, 2005
5:13 pm
6813
RE: SE used to build a United States Solar Power System (SPS) Array Why not use two SE's to build a Solar Power System (SPS) array in SPACE to supply the U.S....
Karl X
asilicondude
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Dec 10, 2005
4:29 am
6814
... http://spacefuture.com/archive/a_fresh_look_at_space_solar_power_new_architectures_concepts_and_technologies.shtml ... According to my reading, about 20%...
Andreas
awnd329
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Dec 10, 2005
5:28 am
6815
... The biggest obstacle to CATS is lack of demand. We've been stuck in a low-volume, high-cost regime for decades because we simply don't put enough mass into...
Monte Davis
modavis1
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Dec 10, 2005
3:09 pm
6816
SPS or CATS would be just the kind of grand engineering project that: 1. Provides a National Vision ( Like the Highway Program of the 50s or Kennedy's Moon...
Karl X
asilicondude
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Dec 10, 2005
9:29 pm
6817
... Am I hearing SPS justified because it justifies the SE? ... If there are multiple solutions to a problem, pick the most feasible. Nuclear and terrestrial...
Andreas
awnd329
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Dec 11, 2005
4:49 am
6818
Not that far fetched. Especially when you consider work being done now by NAS and NASA. Plus recent technolgical advances by companies like but not limited to...
Karl X
asilicondude
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Dec 11, 2005
9:49 am
6819
... Yes -- that's why I wrote "candidly." Affordable access to space is a classic chicken-and-egg or vicious-circle problem: we don't do much of it because...
Monte Davis
modavis1
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Dec 11, 2005
3:47 pm
6820
... I understand your reasoning, but I do not think it is going to make anyone buy into SPS who is not an SE aficionado, or vice versa. That is not a lot of...
Andreas
awnd329
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Dec 13, 2005
12:39 am
6821
... In a few years? You cannot be serious. Think space station. Andreas...
Andreas
awnd329
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Dec 13, 2005
12:47 am
6822
... There is one niche that SPS could use to become viable. There is enough energy available on Earth. The problem is distributing it. No affluent person in...
Brian Dunbar
economic_ref...
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Dec 13, 2005
1:40 am
6823
... After reading a lot of papers on SE, and rocketry, they both suffer from the same problem in fact- you need to launch a lot of stuff to bring the costs...
Ian Woollard
wolfekeeper
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Dec 13, 2005
2:51 am
6824
I personally like the idea of mining the Moon for platinum, palladium and gold. But in the near term, I don't see too much other than tourism that will be...
ill ugg
northernchronic
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Dec 13, 2005
4:09 am
6825
... Geoff Landis had an idea that struck my fancy: put an SPS in orbit around the Sun-Earth L2 point (on the opposite side of the Earth from the Sun). Such a...
Robert Munck
bobmunck
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Dec 13, 2005
5:59 am
6826
I may have been too lose with my words. However, we could start the SPS POC project in a few years with currently available technology. In particular I'm...
Karl X
asilicondude
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Dec 13, 2005
3:21 pm
6827
... In your maths, you seem to not have accounted for the full costs of space operations. Launch costs are just the beginning. To that needs to be added power...
Andreas
awnd329
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Dec 13, 2005
3:26 pm
6828
... I've done the maths on this, and so far as I can tell, no, not really. If launched using rockets, SPS gives an energy payback on the rocket fuel used after...
Ian Woollard
wolfekeeper
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Dec 14, 2005
4:25 am
6829
... I accounted for those. ... I don't agree that any maintenance is required. Do GEOsats require people to go up and fix them? They have solar panels on them,...
Ian Woollard
wolfekeeper
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Dec 14, 2005
4:56 am
6830
... Uhm Andreas? It's not just 'his' math... this case has been very well studied both in the 70s and early 80 but in the last few years and it's QUITE doable...
RanulfC@...
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Dec 14, 2005
5:15 am
6831
Note that building a national SPS will not easy! ( No free lunches, here.) There is STILL a lot of work to be done in the area of efficency of the translation...
Karl X
asilicondude
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Dec 14, 2005
6:19 am
6832
I don't know if you guys have seen it or not but there's an interesting item on Space Review about Lunar SPS, suggesting this would even be more economic than...
Andrew Nimmo
andynimmo
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Dec 14, 2005
2:10 pm
6833
I'm part of this MIT Enterprise Forum in Cambridge, MA and they have a business "plan" competition coming up, ideas only have to be loosely related to energy....
abexman2000
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Dec 14, 2005
2:31 pm
6834
... So, you know how much it will cost to transmit Gigawatts of power from orbit to Earth? When nothing even remotely like it has ever been done? Please share...
Andreas
awnd329
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Dec 14, 2005
11:20 pm
6835
... It might be, I haven't checked the arithmetic. But the startup costs are very high indeed; a significant fraction of a trillion dollars before you deliver...
Ian Woollard
wolfekeeper
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Dec 14, 2005
11:25 pm
Messages 6806 - 6835 of 9015   Oldest  |  < Older  |  Newer >  |  Newest
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