On this article: http://www.nanosolar.com/cache/FastCo2.htm If you scroll down to solar power, you will be able to read an interview with Nanosolar, where it...
... True, but it works, and propellent is dirt cheap, well under $1/kg. Metal and stuff is >>$1000/kg. ... Not if you're using chemical fuel it doesn't. ISP...
... No, there's actually quite a big market for powerful lasers in industry. They use them for cutting, welding, telecommunications etc. Incidentally, laser...
From: Ian Woollard [mailto:ian.woollard@...] "I would expect we will have space elevators long, long, long before we have scramjets. " Even after we...
... We've been round on this before :) Apparently on your world the propellant flies alongside the rocket in a gossamer bubble and is teleported into the...
... I certainly hope you're right, and claim no expertise in high-power lasers. It was just that IIRC, as of last summer there was a factor of five gap between...
... If you FORCE competing designs to assume an 85% mass ratio,all of a sudden reality bites. Jerry -- Jerry Irvine, Box 1242, Claremont, California 91711 USA ...
Jerry Irvine
01rocket@...
Mar 1, 2005 10:14 pm
5410
... Tankage? 1% of the weight of the fuel. So that's ~$10/kg of fuel, and around $200/kg of payload, *assuming* expendable tanks. Reusable tanks? It goes way...
... Now, that's just bad design! If you can teleport the fuel into the rocket, why bother with all that gossamer and having to keep all those spiders? Why not...
I've looked into this report and the more I learn the more I think further investigation into the recent announcement by the Palo Alto group, Nanosolar Inc.,...
Then again, maybe the stuff is just right to build the SPS solar cells out of. The SPSs still have the advantage of 10 times the light in space, no night-time...
... Consider a storage system consisting of a flywheel spinning on magnetic bearings in a vacuum. Very efficient, and the capacity is limited by the speed of...
Cheap solar cells would certainly take the pressure off, but we're not likely to supply all of our electrical energy needs with solar cells. When I lived in...
From: RanulfC@... [mailto:RanulfC@...] "There are laser frequencies that can penatrate clouds as well. " To quote you from the other day, "Thanks. I...
... The rectennas I have seen are cross half-wave dipoles with a quarter wave delay line, followed by a diode. If you want to make a life-size model of a...
... I was not advocating scramjets; I was responding to your statement about the higher fuel-to-metal ratio of rockets. Better than scramjets? Quite likely....
This is true, but the advantage would be for a large company with a big plant. You could cover the entire roof of their building and help reduce their yearly...
Don't forget that in some states, too, the law allows you to sell electricity back to the grid. You can eliminate the need for a storage system by simply...
Excellent point! It would help reduce the cost of living and thats a big plus for anyone. ... storage ... When you ... use ... forwards. ... company. ... a ......
Shouldn't we approach a company like Microsoft (recently gave out a $50 billion div to stock holders) and get them involved as a primary partner on this?...
From: JW [mailto:baronstone@...] "Shouldn't we approach a company like Microsoft (recently gave out a $50 billion div to stock holders) and get them...
... Abraham added: "Don't forget that in some states, too, the law allows you to sell electricity back to the grid. You can eliminate the need for a storage ...
I know this thread is getting off-track from the space elevator discussion... However, we should not ignore home-based or business-based solar installations,...
... Works for me :o) ... Sealaunch does transfer an entire rocket, and for that reason they have the extensive positioning system they do. And I agree that the...
RanulfC@...
Mar 2, 2005 10:00 pm
5428
Right, so you need to be careful that you won't lose money on the deal, where it costs you $.10 per kWhour and the utility company pays you $.05 per kWhour. I...
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