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#1051 Re: Human missions » Space Plane - Space Plane » 2004-03-08 17:48:15

Why can't you use a series of land based particle beams to shoot the fuel down the throat of a scram jet untill it reaches escape velocity instead of carrying the fuel on board?

#1052 Re: Interplanetary transportation » Physics transfers fuel inside carbon nano tube - fuel into space » 2004-03-08 17:14:59

So if you pop the balloon at its highest point will the H2 continue on up futher in the tube? No need for the oxygen for an ion engine.

#1053 Re: Interplanetary transportation » Physics transfers fuel inside carbon nano tube - fuel into space » 2004-03-08 15:09:05

Ok then how high will a H2 balloon go up the tube if it was equalized with atmospheric air pressure, and both ends were open?

#1054 Re: Interplanetary transportation » Physics transfers fuel inside carbon nano tube - fuel into space » 2004-03-08 11:59:07

In the same manner in which the generator was purged out.In the bottom with atmosphere and out the top the H2 exits to space.Well if you can get it to the extosphere inside the tube, from there you could beam it to a higher altitude. BTW if you just let the hydrogen in the bottom of the tube how high will it rise up the tube?

#1055 Re: Interplanetary transportation » Physics transfers fuel inside carbon nano tube - fuel into space » 2004-03-08 11:18:19

I agree they are still mixing. I have seen that on the purity meter before. Many times I have seen the purity go down during the purging process. However, if I stop during the process and come back later the purity of the H2 rises back up again. This proves the elements seperate again. The CO2 settles to the bottom again over time.

#1056 Re: Interplanetary transportation » Physics transfers fuel inside carbon nano tube - fuel into space » 2004-03-08 10:53:19

Ok,why does the H2 purity meter show otherwise at the top vent? As the H2 is pushed out the top by the C02 being admitted through bottom,the percentage of H2 goes down on the meter. As the CO2 is added to the bottom the H2 escapes the top vent. It takes about two volume exchanges to see any change at all.

#1057 Re: Interplanetary transportation » Physics transfers fuel inside carbon nano tube - fuel into space » 2004-03-07 22:57:57

But,it shows how the gasses do seperate even under pressure. I will imagine they will do the same in the tube extending into space. Also, once the hydrogen is purged from the generator casing out the top by the CO2,the CO2 is then purged back out the bottom with compressed atmospheric air admitted in top.So, it works both ways.

#1058 Re: Interplanetary transportation » Physics transfers fuel inside carbon nano tube - fuel into space » 2004-03-07 22:34:04

Ok, why purge the hydrogen out the top of the generator casing while admiting the carbon dioxide in the bottom?

#1059 Re: Interplanetary transportation » Physics transfers fuel inside carbon nano tube - fuel into space » 2004-03-07 22:19:47

If they don't combine in time they will seperate. I have seen it happen many times purging generators out.

#1060 Re: Interplanetary transportation » Physics transfers fuel inside carbon nano tube - fuel into space » 2004-03-07 22:08:49

I would think the atmosphere we are letting in has already mixed with H2, and the H2 that was introduced into the sytsem would not be be able to mix any more.

#1061 Re: Interplanetary transportation » Physics transfers fuel inside carbon nano tube - fuel into space » 2004-03-07 21:54:27

What elements are left for it to mix with? What if it was He instead of H2?

#1062 Re: Interplanetary transportation » Physics transfers fuel inside carbon nano tube - fuel into space » 2004-03-07 21:33:33

Would the H2 still be on the top of the column once the pressure was equalized?

#1063 Re: Interplanetary transportation » Physics transfers fuel inside carbon nano tube - fuel into space » 2004-03-07 19:48:49

Nope the outside air pressure is about 15 psig at sea level, and the H2 pressure inside the tube is 7 psig. So the outside air would rush in the tube.

#1064 Re: Interplanetary transportation » Physics transfers fuel inside carbon nano tube - fuel into space » 2004-03-07 19:38:35

I agree!! You can push it up with the existing atmosphere by letting it back in through the bottom and letting the column equalize with the outside pressure.Of course, you could put a barrier between the two gasses.Since, the H2 is already on the top you my not need that barrier.

#1065 Re: Interplanetary transportation » Physics transfers fuel inside carbon nano tube - fuel into space » 2004-03-07 05:15:34

Well, at least the H2 should be at the top of the atmosphere.Correct?

#1066 Re: Interplanetary transportation » Physics transfers fuel inside carbon nano tube - fuel into space » 2004-03-06 22:52:04

So if you fill the vacuumed out tube with 7 psig of H2 then let the atmosphere in the bottom slowly. Will it push the H2 out the top? The atmosphere is heavier than the H2, and the H2 should stay on top. As the Atmosphere rushes in from below it should equalize the remaining pressure difference, but do it slowly. Sort of like purging the Hydrogen out the top of a comercial electrical generator.

#1067 Re: Unmanned probes » Broken spherele has dark spot inside it???? » 2004-03-06 22:40:41

Shaun Barrett,
  I sure hope they find something like you say. How far away is spirit now?

#1069 Re: Interplanetary transportation » Physics transfers fuel inside carbon nano tube - fuel into space » 2004-03-06 21:59:46

Won't the momentum push it up a little higher? Similar to a beach ball being let loose under water?

#1070 Re: Unmanned probes » Broken spherele has dark spot inside it???? » 2004-03-06 21:47:05

If you look at the small one in the bed rock that it is attached to, it is not erroded away at the point where they both make contact. Compare it to the large one, and you can see the bedrock is erroed away at the point of contact, as if it is eating the sulfur, and then growing into the space that it just ate.

#1071 Re: Interplanetary transportation » Physics transfers fuel inside carbon nano tube - fuel into space » 2004-03-06 21:23:16

You are close but not yet? If you simply remove the caps the atmosphere rushes back in the bottom correct? Also,to what altitude?

#1072 Re: Interplanetary transportation » Physics transfers fuel inside carbon nano tube - fuel into space » 2004-03-06 20:03:35

I see you GCNREVENGER!!!,
I've been thinking again!!!
Ok place an empty pipe with an equal amout of vacuum in it as space has. Place a cap on each end of that pipe. Place that pipe through our atmosphere all the way to near sea level,and the other end out in space. Now uncap each end what happens?

#1073 Re: Interplanetary transportation » Physics transfers fuel inside carbon nano tube - fuel into space » 2004-03-05 19:54:49

H2 and He also escape Jupiters Atmosphere where gravity does not contain it. The gravity of Jupiter is much more than Earths. How Is this so?

#1074 Re: Interplanetary transportation » Physics transfers fuel inside carbon nano tube - fuel into space » 2004-03-05 19:14:08

Hey what about placing multiple miniture pumps within the the pipe in many stages. One pump pumps it to the next highest level and so and so on. It would be like a multi stage screw pump that the Egyptians used to pump water up the side of a tall hill.

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