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PowerPointSamurai
http://www.physorg.com/news10605.html

There"s still Project Prometheus. http://exploration.nasa.gov/programs/prome...s/overview.html Hopefully this project demonstrates what nuclear propulsion in space can do for us and then we can move on to more powerful Orion-like nuclear projects that will be capable of taking us to the stars. Since politics and cost have been some of the stumbling blocks in the past (Nuclear test ban treaty), perhaps we could collaborate with the Russians, even perhaps helping fund their project mentioned in this article.
noob
going that fast wouldn't you run the risk of hitting something with no warning..
NW Furball
QUOTE (noob+Feb 8 2006, 01:54 AM)
going that fast wouldn't you run the risk of hitting something with no warning..

Yes you would. Any good spacecraft design would need a bow shield. Probably something similar to Deep Impact's orbiter shield. Separated layers of material that disperses the energy of the particle. Deep Impact used copper for the armor shield and the impactor.

Orion would give you a large Specific impulse, but the fuel (The nuclear weapons) would be a bit massive. This would, according to studies I've read about, limit a manned spacecraft to around .1c.
bmcghie
Anyone else feel like we are getting ever closer to Star Wars?
I'm only 18, and I didn't think we would be getting these things in my lifetime.
Amazing things going on all over the place.

Eee! So excited! cool.gif
-ben out-
Neil Farbstein
QUOTE (PowerPointSamurai+Feb 7 2006, 07:16 PM)
http://www.physorg.com/news10605.html

There"s still Project Prometheus. http://exploration.nasa.gov/programs/prome...s/overview.html Hopefully this project demonstrates what nuclear propulsion in space can do for us and then we can move on to more powerful Orion-like nuclear projects that will be capable of taking us to the stars. Since politics and cost have been some of the stumbling blocks in the past (Nuclear test ban treaty), perhaps we could collaborate with the Russians, even perhaps helping fund their project mentioned in this article.

Project Prometheus is a big ripoff. Give credit where credit is due!
Midnight Rambler
It is just plain sickening what our government is doing with respect to its
project Prometheus. This program promised that our government would take a
leading role in space propulsion with follow on programs like that pioneered by
the revolutionary satellite/true space ship 'Deep Space One'. Instead we are
to be treated by a re-run of the Apollo program using chemical rockets with all their instabilities. Our government proposes to give up its role in space to others
without discussion or struggle just in order to make room in its budget for a
disgusting subsidy to asbestos manufacturers to bail them out of their liability
to those they poisoned for years.....us. It is so sad if makes me ashamed to
be an American. It looks like the Russians are the real hope of the world for man
to be able to explore space in anything different that literally riding an artillery
shell.
Every rational scientist has said over and over that the only way to travel in
our planetary system is to use nuclear systems. These are the only systems
with the energies that we will need in space. More than one writer has also
raised the issue that space travel is hazardous to the unshielded. Only nuclear
propulsion systems will have the energy enabling us to use massive ships with
sufficient shielding and artificial gravity/rotation systems to preserve our
health on space voyages. Only nuclear systems will have to power to propel
us on our journeys on direct and timely trajectories and schedules without relying
on hazardous and time consuming 'gravitational assists' from intervening planets.
Suppose that there was a place to go, that we HAD to go to, that was out of the
plane of the planetary path trajectories, like hypothetical soon to be discovered
Kuyper Belt object that was found to be an Earth collider. Suppose we had to
go quickly and did not have ten years to go a couple of billion miles; and suppose
this object had the potential to destroy civilization as we know it if we did not
act? Chemical artillery shells with three of so 'astronauts' strapped in chairs
pissing and crapping in their suits for several years until they die from radiation
exposure or worse are not the way to go. They are the way to die.
They are the way to fail.
But then we do not think straight. We would rather throw money at feather
merchants. Case in point. Nasa scientists spent years trying to perfect a pen
that would write in space. Millions were spent and nothing came of it. The
Russians use pencils. They work perfectly in space.
bmcghie
Midnight Rambler: Good post. I would have to agree with all of it.

Although I may not be so vehement about the chemical rockets, after all they did work for what they were assigned to do, I do believe it is time to move on. Way past time.
Nuclear is the power of the future, especially in space as you said. We simply cannot generate that kind of long term sustainability with "conventional" propulsion.
I am also saddened to see that the only real cooperation between nations is the ISS. It would appear that we, as Earthlings, need to band together and merge all availible Space Exploration Institues from most/all countries. It is not enough that we borrow Russian rockets when our shuttles are down, so we can get one more pitiful load of astronauts up to what is already becoming another MIR. Sad. I remember several years ago (2?), the ISS was supposed to be ahead of the curve well into 2008, if not 2010. Here we are, barely 2006, and the thing is, shall we say, lacking.
I would propose the merger of international space exploration organisations, and perhaps an infusion of capital. Dare I say, *gasp* instead of blowing up countries in a sham of a "war on terror."
Just think what we could create, given the amount of resources going to the military of the US was diverted to NASA!

If we really want colonies on the moon, and mars, we are going to have to band together. For that to happen, we need to be assured of our safety on earth. Hell, if you're really concerned, but guns on your spaceship, so if need be you can come back and maintain the balance. At least the ship is built... (I know, there are other things associated with the weaponization of space.. I don't have the space or will to take this to that level smile.gif )

As for space pens... Why the hell did that cost so much? Is there something wrong with pressurizing the ink? Or as the Russians did --> Pencils!?

The stupidity boggles the mind.
Goodnight everybody.
-ben out-
The Zer0 Point
Hey this is feasible now that we know that masses propelled faster than 57.7% the speed of light casts a kind of anti-gravity shadow in front of it. Pushing things out of the way.
Drude
I am still confued. Did we actually land on the moon or was the whole thing a big hoax?
JoulesBeef
pretty hard to fake the moon soil we have..pretty hard to mimic even
more amazing is we landed on the moon with a computer that had 4kb of ram and 74kb of epprom.. thats kilobytes
they did have there own version of blue screen of death happen right as they were landing but a quick reboot fixed it all.
Dr_Zinj
I wouldn't worry about hitting things due to your velocity, even with a nuclear propulsion system.

Let me amend that, I wouldn't worry any more about it than I would about being hit by ordinary space objects.

Nearly every object we will ever encounter in space will have an intrinsic velocity both different from our own, and of a high order of magnitude. You want meteoroid shielding on all sides of the ship.

Although an extra layer or two on the front facing surfaces isn't a bad idea.
kaneda
PPS. The original Porject Orion as I remember it was projected to send sixty men and a thousand tons of supplies to Mars within a month but it was stopped because people were worried about sending radioactive materials into space. Next thing you know, they'll be worried about making a vacuum in space in case it sucks the whole universe in.
kaneda
QUOTE (Midnight Rambler+Feb 13 2006, 04:52 AM)
Case in point. Nasa scientists spent years trying to perfect a pen
that would write in space. Millions were spent and nothing came of it. The
Russians use pencils. They work perfectly in space.

An old wive's tale, like the idea that teflon came from the space industry.
kaneda
QUOTE (Drude+Feb 18 2006, 08:24 PM)
I am still confued. Did we actually land on the moon or was the whole thing a big hoax?

Only if you believe that the Russians who could track a rocket to the Moon let the world believe that the Americans won the space race and they lost, knowing it was all a fraud.
N O M
QUOTE (kaneda+Jan 23 2007, 09:07 AM)
PPS. The original Porject Orion as I remember it was projected to send sixty men and a thousand tons of supplies to Mars within a month but it was stopped because people were worried about sending radioactive materials into space. Next thing you know, they'll be worried about making a vacuum in space in case it sucks the whole universe in.

I wouldn't like the idea of a rocket taking off anywhere upwind using nuclear blasts as propulsion.
A lot of the weight of the orion ship was devoted to shock absorbers, but I bet the ride would still be extremely uncomfortable.

Once a moon base has been established and lunar mining starts, this project may be revived. It is unlikely that the voting public will be keen on the importation of lunar radioactives, so using them for propulsion may make sense.
It may depend on whether a moon base predates the development of controlled fusion. The proposed mining of lunar He3 for fusion fuel will also affect this. He3 fusion is more difficult than H2-H3 fusion, but gives off much more energy and is supposed to be much cleaner. It may make fusion spaceships much more practical. Smaller and cheaper too.
Gabrielle Tillman
[FONT=Ariel][SIZE=7][COLOR=blue]man that is cool and i really think they can make it tongue.gif ph34r.gif rolleyes.gif
Guest_chris
WoW! ben you are a nerd! EEE! ya. dry.gif dry.gif dry.gif dry.gif dry.gif
Gorgeous
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http://www.elfqrin.com/promethbox.html


Oh what fun! biggrin.gif




g.
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