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Ten ways to traverse deep space

Posted by: Rob Goldsmith - Mon Dec 21, 2009 5:33 pm
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Ten ways to traverse deep space 
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Post Re: Ten ways to traverse deep space   Posted on: Fri Dec 17, 2010 9:40 am
Liquid hydrogen is already manufactured as fuel for some large rockets (not nuclear - it's burnt with liquid oxygen). For example the Saturn 5 used cryogenic H2.

If someone can come up with a more cost effective way of making H2 from waste that would be good, but the main problem with using H2 as a fuel on earth is storage. It escapes very easily from containers as the molecule is so small.

Methane is already captured from waste sites and in some cases used to power electricity generators to put power back in the the grid.


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Post Re: Ten ways to traverse deep space   Posted on: Sat Dec 18, 2010 3:04 pm
what if this sugar waste can constant produce h2 while you use and just topping up the waste can keep you burning for ages then when out sleep few hours tanks full away you go again replnishing fuel supply is what maybe produced which could come in handy on long flight and this aint an experamental idea it is in flow but who will go against the oil countries to make this plan a free fuel source uk wont look at the loss of tax if they admitt it that would mean pay cuts for polticians that we already dont need while they keep chaos we dont look at them doing jack for there millions in wages


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Post Re: Ten ways to traverse deep space   Posted on: Sat Dec 18, 2010 11:40 pm
The Space Shuttle also runs on liquid hydrogen (at least, the main engines do), as does the Ariane 5 launcher. Hydrogen can be made by hydrolysing water, so all you need to make it is two electrodes, an electricity source, and a bucket. As James said, the problem is in storing it.

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Post Re: Ten ways to traverse deep space   Posted on: Sun Dec 19, 2010 11:01 am
Sorry for a little bit off-topic:

@ tattooedfreak
I think it is an interesting discussion that is created by your ideas and questions. However, I'm having a VERY hard time understanding your posts. Would you mind and at least try some kind of punctuation?

Oh and if you change from one thing to another, you should start a new paragraph.

Thx! :)

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Post Re: Ten ways to traverse deep space   Posted on: Mon Dec 20, 2010 1:59 am
JamesHughes wrote:
If someone can come up with a more cost effective way of making H2 from waste that would be good, but the main problem with using H2 as a fuel on earth is storage. It escapes very easily from containers as the molecule is so small.


Not a problem for a prime lifter to LEO, the tank only has to hold the H2 for a few hours at most while fueling and during asset.

There are a couple of promising chemistry answers for long term containment of liquid H2. A coating that binds with hydrogen similar to how a layer of oxide protects the underlying Fe on a steel structure. Also there is keeping the H bound with carbon as a... hydrocarbon until needed and then using a catalyst to separate it or simply burning and exhausting it with O2.


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Post Re: Ten ways to traverse deep space   Posted on: Mon Dec 20, 2010 9:32 am
JamesG wrote:
JamesHughes wrote:
If someone can come up with a more cost effective way of making H2 from waste that would be good, but the main problem with using H2 as a fuel on earth is storage. It escapes very easily from containers as the molecule is so small.


Not a problem for a prime lifter to LEO, the tank only has to hold the H2 for a few hours at most while fueling and during asset.

There are a couple of promising chemistry answers for long term containment of liquid H2. A coating that binds with hydrogen similar to how a layer of oxide protects the underlying Fe on a steel structure. Also there is keeping the H bound with carbon as a... hydrocarbon until needed and then using a catalyst to separate it or simply burning and exhausting it with O2.


I think the problem in the case being discussed is that the production rate of the H2 would be pretty low, and you have to store it over a long period. I guess though, there will be no real difference from how it is stored long term now.

Isn't there some research in to using Nanotubes to store it - seem to remember reading that somewhere.


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Post Re: Ten ways to traverse deep space   Posted on: Sat Dec 25, 2010 4:43 pm
could they not concentrate the the sugar waste into small cube form then and poss the bio chem to such a degree that it would take less space


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Post Re: Ten ways to traverse deep space   Posted on: Tue Sep 18, 2012 9:25 pm
*digs out an old thread*

Sooooo, looks like the amount of available energy is not preventing the Alcubierre drive at all! 8)
http://news.discovery.com/space/warp-dr ... 20917.html

Now we just have to solve the "tiny", "trivial", other problems associated with the warp drive :P :wink:

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Post Re: Ten ways to traverse deep space   Posted on: Wed Sep 19, 2012 4:39 am
Actually, I think that it is possible to make the warp drive/ Alcubierre drive even more plausible - just use it to send information. I'd imagine that the power constraints would fall if it was restricted to just a few photons, which carried information. Photons don't have that much mass, after all.
(yes, that is tongue in cheek)

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Post Re: Ten ways to traverse deep space   Posted on: Wed Sep 19, 2012 10:55 am
SuperShuki wrote:
Actually, I think that it is possible to make the warp drive/ Alcubierre drive even more plausible - just use it to send information. I'd imagine that the power constraints would fall if it was restricted to just a few photons, which carried information. Photons don't have that much mass, after all.
(yes, that is tongue in cheek)


:D Me i am dubious about testing warp fields down here on our only inhabited planet but with the photon idea i can now see the cunning plan send a few data packets at warp ten between London and New York stock exchanges and with today's electronic trading you could soon make enough to build a full sized prototype. :wink: :twisted:

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Post Re: Ten ways to traverse deep space   Posted on: Wed Sep 19, 2012 11:32 am
Well, the thing is, information transfer at beyond light speed is something very very practically useful, in and of itself. And once you start doing that, all you need is improvements to make a spaceship, not a complete revolution, like you need now.

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