Talk-Polywell.org

It would be interesting to see an apples for apples comparison of the costs to launch H2 and 02 from the Earth and the Moon. Launching from the Moon you need a large fission reactor to melt, gather and form the <6% water The deposits found by Chandrayaan 1 are evidently richer than 6%. Sheets of ic...

Check this out. http://www.pureenergysystems.com/news/2004/09/14/6900043_Solar_Hydrogen/ The ideal temperature for the SHEC reaction is 850 degrees Celsius, which is what the present array is designed to deliver. However, the process will separate hydrogen at temperatures as low as 400 degrees Cels...

Someone said that Musk wanted to send huge numbers of people to Mars. Someone said that the launch window wouldn't support that plan. So far as I know, I'm the only one pointing to biannual Martian launch windows. That was done in response to Betruger saying Moon and Mars were a toss up. I was sayi...

That is what I said in the completion of the sentance. TDPerk said there's no station keeping needed. You tell GIThruster no one is talking about thrusters. Then you talk about Hall Thrusters to do station keeping. The disconnect is yours. Which is why I recommended parking it on L4 or L5. From LEO...

KitemanSA wrote:"You can't do Mars cuz the launch window is too small"

What I actually said is the moon is a more plausible near term goal. One of the lunar advantages is more frequent launch windows.

I didn't say we can't do Mars.

"Where did you intend to get the water?" For one, the moon has lots and in a shallow well. I agree. But some thread history is in order: http://clowder.net/hop/TMI/Betruger.jpg If you want to argue lunar propellant can aid Mars missions, fine. But you're missing my point. The point of my arguments ...

You are totally out of it. More math and cites, less ad hominem, please. NOONE has been talking about putting thrusters onto the mirrors Wrong. I HAVE been talking about putting thrusters on the mirrors. Without them, station keeping is not possible. As TDPerk mentioned, earth's tidal influence wou...

Station keeping is trivial. You don't. There will be perturbations. Satellite sans station keeping is a fantasy. I suspect tidal forces may keep it aligned axially. In LEO, by far the dominant tidal forces are earth's. Thank you for demonstrating the axis of the paraboloid will almost never be alig...

Hmmm, doth #2 apply to you? fanboi or fanbois 1. Derogatory. A person with an irrational attachment to a particular item or brand name, and an equally irrational dislike for competing brands or items. This behaviour is often seen during discussion threads pertaining to ISPs, computer hardware or mo...

If you assemble the edge fused pieces and spin it, it will do just that. For almost no structure. How is this folded into a faring of plausible size? How is unfolded at arrival to LEO? I can imagine this being done 20 meter diameter square solar sail such as Ikaros . A 40 acre paraboloid is a diffe...

are under research and in testing phase So " in testing phase " has morphed to "(2x1087kg) you would have ~ 2.2E6/12 m² ~ 1.8E5 m². So: 32.6hr/kgm²/1.8E5m² = 1.81E-4hr/kg or 5.5E3kg/hr. Let us call it 5Mg/hr. " Sorry. The only thing this "research" demonstrates is that your wits have been addled by...

KitemanSA wrote:Now, try THERMAL cracking

You have yet to provide a cite describing this thermal cracking process.

Assuming a kapton mirror (~12g/m²) Saran wrap that magically assumes the shape of paraboloid. Sorry, your mirror will need some structural support. There will also need to be some sort of turntable to keep the parabolic mirror focused on the water as the water depot changes its position with regard...

So, at 1 AU, our star provides approximately 1353 ±21 W m-2 (per this page ). So, thats 1.353 ±0.021 kJ/sec. If a one square meter mirror was able to focus all the sunlight it received it would generate 1353 kJ/sec. Lets be pessimistic/conservative and say only half of that ends up being "useful" -...

That means YOU try figuring. Until you do, you won't accept others statements. Try it and see. Here's some numbers: 285.83 kJ to crack a mole of water (18 grams) An I.S.S. Solar array wing puts out about 32.8 kilowatts Each I.S.S. solar array weighs about 1087 kg This doesn't include the SARJ. That...