Solar-pumped laser power transmission, a way to dramatically decrease launch costs?
in [Physics]
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From: Scott M. Kozel on 20 Feb 2010 14:28 William Mook <mokmedi...(a)gmail.com> wrote: > "Scott M. Kozel" <koze...(a)comcast.net> wrote: > > William Mook <mokmedi...(a)gmail.com> wrote: > > > > Alternatively, larger diameter emitters may be built - and higher > > > energy levels - which mean larger thrusts. > > > How much faster would those be if they used a superlaser? > > What is a superlaser? http://starwars.wikia.com/wiki/Superlaser
From: William Mook on 20 Feb 2010 16:59 On Feb 20, 2:28 pm, "Scott M. Kozel" <koze...(a)comcast.net> wrote: > William Mook <mokmedi...(a)gmail.com> wrote: > > "Scott M. Kozel" <koze...(a)comcast.net> wrote: > > > William Mook <mokmedi...(a)gmail.com> wrote: > > > > > Alternatively, larger diameter emitters may be built - and higher > > > > energy levels - which mean larger thrusts. > > > > How much faster would those be if they used a superlaser? > > > What is a superlaser? > > http://starwars.wikia.com/wiki/Superlaser So, a superlaser is a fictional device. I see.
From: Brad Guth on 20 Feb 2010 17:14 On Feb 19, 2:40 pm, David Spain <nos...(a)127.0.0.1> wrote: > William Mook <mokmedi...(a)gmail.com> writes: > > So, the program here would be to; > > > (1) Acquire United Space Alliance and other Space Shuttle related > > Assets from NASA > > (2) Operate them to deploy advanced solar power satellites described > > here > > (3) Use the revenue stream to develop a propulsive laser satellite > > and spacecraft fleet > > (4) Deploy the satellite and fleet and retire the shuttle > > (5) Build a lunar village with the new fleet of spacecraft. > > Somewhere in there: > > (6) Profit!!! :-) > > Well, I admire your optimism, even if we don't agree. > > I have serious doubts concerning the practicality of the material engineering > in your plan, esp. the active cooling so close to the sun. (What is your heat > sink? You do have a place to transfer the heat to? Why do you *have* to be > so close to the sun? How do you keep electronics working at those temperatures? > etc. etc.). > > I would also prefer to see the shuttle still in operation until > something better comes along. I don't think this plan is it, but who's to > stop you? It's only money... > > I don't believe in it (SPS), I don't believe your numbers and I believe there > are cheaper energy options out there than SPS but that doesn't prevent me > from wishing you luck. > > Good luck, > Dave You have to do better than luck wishing with whatever Lord Mook has in his mindset to do. However, energy as you say (lots of it) is out there. Perhaps SPS isn't exactly a dead horse. It's just at first a very spendy horse, whereas eventually that $10/kwhr is going to end up somewhere near $.10/kwhr the way Mook would have it. I have a better plan that includes trillions in annual profit, more than enough to fund WW3. ~ BG
From: Brad Guth on 20 Feb 2010 17:17 On Feb 19, 11:31 pm, Pat Flannery <flan...(a)daktel.com> wrote: > Scott M. Kozel wrote:. > > How much faster would those be if they used a superlaser? > > You also may want to slow down so you can land on them rather than > hitting them while going full tilt under your 1g acceleration. > So you had better double your transit times, as during the last half of > the trip you will be slowing down:http://www.transhuman.talktalk.net/iw/TravTime.htm > > Pat You don't read very well, or at least your out of context comprehension isn't part of what Pat Flannery considers necessary. ~ BG
From: Scott M. Kozel on 20 Feb 2010 18:04
William Mook <mokmedi...(a)gmail.com> wrote: > "Scott M. Kozel" <koze...(a)comcast.net> wrote: > > William Mook <mokmedi...(a)gmail.com> wrote: > > > "Scott M. Kozel" <koze...(a)comcast.net> wrote: > > > > William Mook <mokmedi...(a)gmail.com> wrote: > > > > > > Alternatively, larger diameter emitters may be built - and higher > > > > > energy levels - which mean larger thrusts. > > > > > How much faster would those be if they used a superlaser? > > > > What is a superlaser? > > >http://starwars.wikia.com/wiki/Superlaser > > So, a superlaser is a fictional device. I see. As are Mr. Mook's proposals. |