Can Magnetic Fluid Spacecraft Revolutionize Space Travel?

[Loren Booda]

A spacecraft whose bulk consists of magnetic fluid shaped by an internal magnetic field has several advantages over conventional solid metallic craft.

1. It would better be able to absorb high-velocity space debris.

2. It could change shape to the demands of atmospheric viscosity or for the constrution of shuttlecraft.

3. It could more readily withstand internal stresses.

4. Magnetic levitation could be utilized to assist in its flight.

5. A naturally generated radio signal locates it.

6. Its electrical power is generated through external charge flux.

7. Its intial construction would incur less cost than that of conventional spaceships.

A magnetic fluid craft might have to bypass strong magneto fields of planets and stars, but these could also be exploited for its efficient propulsion. It may have to be constructed in outer space to avoid large gravitational and inertial forces.

Can you foresee any other advantages/disadvantages of magnetic fluid spaceships?

 

[CJames]

My mind doesn't opperate on the level. All I can say is that it sounds like a very useful idea (one day, that is.)

 

[Nebula]

In all my days of dreaming up wacky sci-fi ideas I’ve never seen or even considered the concept of a magnetic fluid spacecraft . When you say “Magnetic Fluid” what type of material are you talking about?

 

[Loren Booda]

For the low-temperature application involved, I'd say tentatively mercury, or iron suspended in a hydrocarbon or fluorocarbon by appropriate surfactant.

 

[drag]

Originally posted by Loren Booda
A spacecraft whose bulk consists of magnetic fluid shaped by an internal magnetic field...

?
I've NEVER heard of that technology.
What is it ?

"Does dice play God ?"

Live long and prosper.

 

[Loren Booda]

Remember, drag, you heard it here first.

Ferrofluids are a colloidal suspension of nanoscale ferrites that retain their liquid identity yet obey a magnetic field. Your stereo speakers may well utilize them near the voice coil to lessen field losses and dampen resonances.

 

[RuroumiKenshin]

Can magnetic fluids intercept any radio waves or something?

 

[eNtRopY]

Originally posted by Loren Booda
Can you foresee any... disadvantages of magnetic fluid spaceships?

Yes, they kidnap little boys and make them travel through time.
Honestly, have we learned nothing from the movie Flight of the Navigator?

eNtRopY

 

[Raavin]

Surprisingly, this is the first thing I've ever seen you post that seemed, well...sort of nuts. I'm pretty sure (well actaully I'm just guessing) that any specialist in fluid dynamics would feel that trying to control a fluid like that would be impossible with our current knowledge and control of physics.

That said, the idea of a ferro fluid to absorb impact seems not unreasonable. There is also work be done on self organising nanite technology which could potentially create a 'fluid' ship in the future.

By the way, you can make a ferrofluid yourself check down the bottom of this page.

http://science.nasa.gov/headlines/y2002/23aug_MRfluids.htm

Raavin

 

[eNtRopY]

Originally posted by Raavin
There is also work be done on self organising nanite technology which could potentially create a 'fluid' ship in the future.

Are you referring to memory metals?

eNtRopY

 

[drag]

Greetings !

Well, I'm still not entirely certain about this.
But I will address your "uses" points :

Originally posted by Loren Booda
A spacecraft whose bulk consists of magnetic fluid shaped by an internal magnetic field has several advantages over conventional solid metallic craft.

1. It would better be able to absorb high-velocity space debris.

2. It could change shape to the demands of atmospheric viscosity or for the constrution of shuttlecraft.

3. It could more readily withstand internal stresses.

4. Magnetic levitation could be utilized to assist in its flight.

5. A naturally generated radio signal locates it.

6. Its electrical power is generated through external charge flux.

7. Its intial construction would incur less cost than that of conventional spaceships.

A magnetic fluid craft might have to bypass strong magneto fields of planets and stars, but these could also be exploited for its efficient propulsion. It may have to be constructed in outer space to avoid large gravitational and inertial forces.

Can you foresee any other advantages/disadvantages of magnetic fluid spaceships?

1. Possible.
2. Fascinating !
3. And what if there's a power glitch ?
4. Magnetic levitation ? You need something
to cause the levitation. Or, in simpler Newtonian
terms - something to push against.
5. I don't follow this ?
6. And that is some advantage ?
7. Indeed.

Possible disadvantages :
1. First of all, can something like this remain in "liquid"
state in space in different tempratures and radiation
conditions ?
2. It requires a permanent power supply !
Including the construction stage (of additional "internal"
stuff, not made from this material).
3. basically, metal - a material that if strongly effected
by EM fields and radiation is simply a bad choice
for a spacecraft 's hull.
4. The construction must take place in micro-gravity.
5. Can't it rust ?

"Does dice play God ?"

Live long and prosper.

 

[Raavin]

Are you referring to memory metals?

No, I can't find it again at the moment but I'm talking about little robots that join together in different shapes. I think I might have seen it on a documentary. I think each one is quite large at the moment. Not really nanites.

Just had a look, check this out

http://www2.parc.com/spl/projects/modrobots/chain/polybot/

Have a proper look through the site like this bit on digital clay

http://www2.parc.com/spl/projects/modrobots/lattice/digitalclay/index.html

Heaps o'stuff

Raavin

 

[Raavin]

Also search for electrorheological fluids which are electrically forced to change in viscocity rather than magnetorheological fluids which do the same magnetically.

Raavin

 

[Loren Booda]

drag-

Re: Magnetic fluid spacecraft
Greetings !

Well, I'm still not entirely certain about this.
But I will address your "uses" points :


quote:
--------------------------------------------------------------------------------
Originally posted by Loren Booda
A spacecraft whose bulk consists of magnetic fluid shaped by an internal magnetic field has several advantages over conventional solid metallic craft.

1. It would better be able to absorb high-velocity space debris.

2. It could change shape to the demands of atmospheric viscosity or for the constrution of shuttlecraft.

3. It could more readily withstand internal stresses.

4. Magnetic levitation could be utilized to assist in its flight.

5. A naturally generated radio signal locates it.

6. Its electrical power is generated through external charge flux.

7. Its intial construction would incur less cost than that of conventional spaceships.

A magnetic fluid craft might have to bypass strong magneto fields of planets and stars, but these could also be exploited for its efficient propulsion. It may have to be constructed in outer space to avoid large gravitational and inertial forces.

Can you foresee any other advantages/disadvantages of magnetic fluid spaceships?
--------------------------------------------------------------------------------


1. Possible.
2. Fascinating !
3. And what if there's a power glitch ?
4. Magnetic levitation ? You need something
to cause the levitation. Or, in simpler Newtonian
terms - something to push against.
5. I don't follow this ?
6. And that is some advantage ?
7. Indeed.

Possible disadvantages :
1. First of all, can something like this remain in "liquid"
state in space in different tempratures and radiation
conditions ?
2. It requires a permanent power supply !
Including the construction stage (of additional "internal"
stuff, not made from this material).
3. basically, metal - a material that if strongly effected
by EM fields and radiation is simply a bad choice
for a spacecraft 's hull.
4. The construction must take place in micro-gravity.
5. Can't it rust ?

"Does dice play God ?"

Live long and prosper.

Power would be generated by "skin effect," the potential which develops from collision with ions, or by internal nuclear reactor.

Levitation would be used in conjunction with bodies having a large magnetic field.

The skin effect would create a signature E-M signal, as would the interaction of the craft with external magnetic fields.

Energy for "free" would be generated by the above skin effect.

Temperature must be maintained for a liquid state in 2.73K space, or >1000K space near stars.

Rust, or oxidation, does not readily occur in the vacuum of space.

 

[megashawn]

That sounds pretty interesting, but I'm rather curious how you would go about making the fluid conform to an exact form. Perhaps you could use some sort of wire frame, or maybe there is a wireless way of creating a magnetic field that conforms to aerodynamics and such.

Like, if the ship is to be shaped like a classic airplane, how would one design the em fields to regulate the curves and such? Also, how would it be able to switch forms?

I could see if some type of flexible conductor was used to spread the magnetic field as needed. Could possibly even have the conductor setup to slide at certain points, but I dunno.

Sounds pretty cool, maybe we should try a skateboard first though.

 

[Loren Booda]

Thanks for the ref, sir-pinski. Someone beat me to it. It might indeed be difficult to shape arbitrarily using internal magnetic fields. I will put on my magnetic thinking-cap.