I was a bit hesitant at first but now I like this a lot. It provides the multiple tethers that are important at low altitudes. You can also use materials...
I've been reading Edwards' SE book and wanted to check up on the progress of the Free Electron Lasers (FEL), which he wants to use to power the climbers. In...
... So instead of three 800 kW (or more) lasers, we'll have to use 24 100 kW ones. No biggie. Also, I'm quite confident that whatever maximum power is...
The material needed for the SE tape is currently "unobtainium". Calling it a cable is really a misnomer because it is shown as a flat tape with wider width in...
From: Robert Munck [mailto:munck@...] "So instead of three 800 kW (or more) lasers, we'll have to use 24 100 kW ones. No biggie. " This might actually be a...
Apart from FEL also take a look at solid state lasers. Edwards mentioned those at the IAC 04. It seems they might be quite a bit easier to operate (maybe...
SE TEST CONCEPTUAL DESIGN - BRAINSTORMING Question a) Is Kevlar 1) too heavy , 2) not strong enuff or 3) too expensive to use as a CNT sub. The air force has...
... 1 .XOR. 2, since the two are different sides of the same question. Most of the strength of the SE is needed to hold ITSELF up, so if it's really light, it...
Oh, come on, guys. I looked on the web and today's state-of-the-art is about 10 kW (10 for FEL, 40 for gas, and 13 for solid state). Sure people have designs...
... system than losing 33%. One of the so-obvious-it's-easy-to-forget things about SEs is that loss of power to climbers (4% or 100%) isn't a stress at all in...
The ABL laser is comprised 4 continous wave layers (COIL) that form the kill core. Two other Lasers athat re pulsed comprise (TILL) for targeting and...
Hmmm, ok, I missed that. Your first post had 1 mW, which I read 1 milliWatt, but it seems you meant 1 MW or 1 MegaWatt. I think this experiment is important,...
... I'd thought I'd posted this to this list once before, I may have been mistaken. I'd already pointed out that FEL research is way behind since the 'need' ...
RanulfC@...
Feb 9, 2005 11:43 pm
5172
Laser Exhaust System Team ABL Demonstrates Airborne Laser Exhaust System As part of recent performance testing of the first flight laser module for the Air...
This is balm for my jittery nerves, thanks. I saw on the web that someone just started selling a 120 W diode array. It's the wrong wavelength, but now that...
Do you mean a 120 kW diode array? 120 watts isn't going to get us much of anywhere. ... === message truncated === __________________________________ Do you...
... Anything I can do to help out :o) ... The "Lightcraft" concept and "Ablative/Plasma" laser launch systems took me a while to actually 'get' too, so I hear...
RanulfC@...
Feb 12, 2005 8:45 am
5176
Hmmmm, perhaps we should look at this from the alternate side of the equation. Is there any promising research going on in the area of photovoltaics? I havent...
... There is tons of research going on on photocells. Since they have become a 'mainstream' power source the need for better cells has kept the industry...
RanulfC@...
Feb 13, 2005 10:14 am
5178
I attended the 2nd annual Space Elevator conference in 2002 and something like this was presented offered by a skeptic as another alternative launch method...
Yes that is impressive, however I was thinking along the lines of current laser technology. Given the estimated power demands, greater efficiency in the...
Has anybody heard anything about using a laser beam to generate a high voltage, ie. 30 kV? I'm talking about a more direct means than a beam to a photovoltaic ...
Liftport's Michael Laine is going to be on the radio. On 2/15 from 7-8:15 PM (PST) Michael is scheduled as a call-in guest on Dr. David Livingston's program...
I do mean 120 Watts. It's good because it shows that there is research going and progress being made. The state-of-the-art has been 60 Watts for a while. The...
Gregory Benford, professor of physics at UC Irvine (and noted science fiction author) believes that a spacecraft powered by a special kind of solar sail could...
... I get the idea from the articles, (there are some more hotlinks from the space.com site also) that since the current Deep-Space Tracking network is only...
RanulfC@...
Feb 15, 2005 2:54 pm
5185
How do you deccelerate and make the final orbiting maneuvers without engines on your ship? And also you still need to get the sail on orbit, I guess that could...
Dear members.... what is the max. speed of the SE , let it be 200 kph,then the time it will take to cover 36000 kms (the minimum distance) is 180 hours,about...
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