Warp Drive-how feasible?

[timewerx]

sorry wrong post

 

[timewerx]

True, space itself isn't restricted by the 186,000 miles per second barrier and can thus expand at far greater velocities.

Just to clarify, a moving space-time is still limited up to the speed of light relative to an adjacent space-time.

However, through "stretching" or expansion of space, the additive-relative motions between adjacent space times can add up to a speed exceeding the speed of light. Seen those stacked ball bouncing experiment in youtube? It's a good analogy.

So I find the description of this mode of travel as being traveling without moving non-applicable. Obviously there is movement involved and the movement is of space itself. After all, we don't call riding an ocean wave as travelling without moving-do we? The wave itself is obviously in motion and its carrying us along doesn't mean that we are stationary in relation to our surroundings. We are definitely in motion. Correct?

Regardless of how you do it, cruising at FTL speed would compress space-time ahead of the ship, stretch at the sides and expand behind it.

I think if somehow, you made an instantaneous full stop, the ship would go back a bit as the space returns to normal. I think how far the distance you "bounce" backwards is a fraction of the length of the warped space created by the FTL flight.

One thing for sure, you aren't bouncing all the way back to where you started the flight, it will be much closer to the destination obviously.

 

[Radrook]

Just to clarify, a moving space-time is still limited up to the speed of light relative to an adjacent space-time.

However, through "stretching" or expansion of space, the additive-relative motions between adjacent space times can add up to a speed exceeding the speed of light. Seen those stacked ball bouncing experiment in youtube? It's a good analogy.



Regardless of how you do it, cruising at FTL speed would compress space-time ahead of the ship, stretch at the sides and expand behind it.

I think if somehow, you made an instantaneous full stop, the ship would go back a bit as the space returns to normal. I think how far the distance you "bounce" backwards is a fraction of the length of the warped space created by the FTL flight.

One thing for sure, you aren't bouncing all the way back to where you started the flight, it will be much closer to the destination obviously.

Suppose there is something in the direct trajectory of this stretching and pulling. Or if the location where the stretching and pulling stops is occupied by something else such as an asteroid? Or if the ship rebounds, as you say, back against something when the warping stops? Or is that an impossibility?

 

[timewerx]

Suppose there is something in the direct trajectory of this stretching and pulling. Or if the location where the stretching and pulling stops is occupied by something else such as an asteroid? Or if the ship rebounds, as you say, back against something when the warping stops? Or is that an impossibility?

It can't rebound against something from behind I'm sure.

Of course it would be a safe practice to avoid aiming directly at the destination planet. It is not for your sake but for the sake of the inhabitants of the planet.

The approaching spatial distortion might extend a lot of distance ahead of the ship. And a ship slowing down from relativistic speeds would unleash an extremely intense and extremely lethal laser-like beam of X-Rays or even Gamma rays from Bremsstrahlung Radiation.

Bremsstrahlung - Wikipedia

 

[FrumiousBandersnatch]

... And a ship slowing down from relativistic speeds would unleash an extremely intense and extremely lethal laser-like beam of X-Rays or even Gamma rays from Bremsstrahlung Radiation.

Surely only if it's decelerating; as I understood your space-distorting FTL warp drive, the ship itself would not have accelerated (you can't go FTL by accelerating), so it would not need to decelerate, it would 'just' stop warping spacetime.

 

[timewerx]

Surely only if it's decelerating; as I understood your space-distorting FTL warp drive, the ship itself would not have accelerated (you can't go FTL by accelerating), so it would not need to decelerate, it would 'just' stop warping spacetime.

Theoretically, you can also reach FTL by accelerating.

The popular theories on FTL flight also use acceleration. It only does it in a manner that creates a gravity-like force in the direction of acceleration so even though the ship is accelerating, the passengers won't feel any acceleration at all and will be weightless.

 

[Radrook]

Surely only if it's decelerating; as I understood your space-distorting FTL warp drive, the ship itself would not have accelerated (you can't go FTL by accelerating), so it would not need to decelerate, it would 'just' stop warping spacetime.

So the hypothetical inertial dampeners in Star Trek are not needed when the ship is in warp. Correct? Only when impulse drive is engaged.

 

[Radrook]

Theoretically, you can also reach FTL by accelerating.

The popular theories on FTL flight also use acceleration. It only does it in a manner that creates a gravity-like force in the direction of acceleration so even though the ship is accelerating, the passengers won't feel any acceleration at all and will be weightless.

What happens to the problem that I kept encountering where the closer light speed is approached the greater the mass and the greater the force needed to accelerate further until any further increase in velocity or acceleration of the mass becomes impossible? Has that been replaced with the concept that the ship's increased mass produces a gravitational force ahead of itself which pulls it along into superluminal speed? How does that work?

 

[Goatee]

If i have a hot curry then warp drive is very much a strong possibility!

 

[John 1720]

When if ever will warp drive become a reality? I would like to hear opinions on this fascinating subject. After all, if warp drive doesn't become reality then interstellar travel becomes exceedingly impractical and we would be more or less restricted to the exploration of our solar system and forever out of touch with the far distant reaches of our universe. Not that the exploration of our solar system is in any way boring since there is plenty to explore and to learn. Only that human curiosity understandably aspires for far more.

The opinion of scientists who have claimed something is possible or impossible only to be found wrong later litters the pages of history.

• Things People Said: Bad Predictions

Right now we only see that massless particles can obtain light speed but theoretical imaginations abound and have continued to astound the status quo. Who knows? I'm still wondering how the Great Commission will be completed as a greater than I can imagine challenge but I believe God will make a way where there is no way.

• Warp drive - Wikipedia

 

[FrumiousBandersnatch]

So the hypothetical inertial dampeners in Star Trek are not needed when the ship is in warp. Correct? Only when impulse drive is engaged.

If that's how the hypothetical warp drives works, then the hypothetical inertial dampeners wouldn't be needed in warp. But who knows? it's science fiction - they made it up.

 

[FrumiousBandersnatch]

The popular theories on FTL flight also use acceleration.

Such as? Links?

 

[Waterwerx]

When if ever will warp drive become a reality? I would like to hear opinions on this fascinating subject. After all, if warp drive doesn't become reality then interstellar travel becomes exceedingly impractical and we would be more or less restricted to the exploration of our solar system and forever out of touch with the far distant reaches of our universe. Not that the exploration of our solar system is in any way boring since there is plenty to explore and to learn. Only that human curiosity understandably aspires for far more.

I can't imagine mankind spreading his disease onto other planets in the solar system, let alone other galaxies. We can't even solve the problems here on the earth, yet we continue pursuing the idea of long distance space travel. If we can't clean up our own backyard, what would be the purpose? We can supposedly solve all energy, food, and living space problems with greater advances in technology, but it will still be the same old nonsense.

The fact that we have people who basically "have it all" going nuts and/or doing some of the dumbest things a person could do should tell us the root issue isn't with the environment and that the answers aren't going to be found in space.

 

[Radrook]

I can't imagine mankind spreading his disease onto other planets in the solar system, let alone other galaxies. We can't even solve the problems here on the earth, yet we continue pursuing the idea of long distance space travel. If we can't clean up our own backyard, what would be the purpose? We can supposedly solve all energy, food, and living space problems with greater advances in technology, but it will still be the same old nonsense.

The fact that we have people who basically "have it all" going nuts and/or doing some of the dumbest things a person could do should tell us the root issue isn't with the environment and that the answers aren't going to be found in space.

Well, that is absolutely true, mankind is indeed extremely flawed and hasn't resolved its problems here on Earth. However, please note that mankind isn't impelled into space exploration because it is seeking answers to its inherent defects. Mankind is impelled to explore out of sheer curiosity and because it sees potential profit in natural resources it might find there.

Asteroid mining is the exploitation of raw materials from asteroids and other minor planets, including near-Earth objects.[1] Minerals and volatiles could be mined from an asteroid or spent comet then used in space for in-situ utilization (e.g. construction materials and rocket propellant) or taken back to Earth. These include gold, iridium, silver, osmium, palladium, platinum, rhenium, rhodium, ruthenium and tungsten for transport back to Earth; iron, cobalt, manganese, molybdenum, nickel, aluminium, and titanium for construction; water and oxygen to sustain astronauts; as well as hydrogen, ammonia, and oxygen for use as rocket propellant.

Asteroid mining - Wikipedia

There is also the fear of another extinction event caused by an asteroid or comet impact which might render the Earth temporarily uninhabitable. So having the eggs all in one basket seems foolish. A Mars or Moon colony would increase the likelihood of mankind's survival from that standpoint. A Christian has no such concerns of course.

 

[Radrook]

If i have a hot curry then warp drive is very much a strong possibility!

Ah! You are talking about flatulence enhanced propulsion a chorro!

 

[timewerx]

Such as? Links?

https://phys.org/news/2017-01-alcubierre-warp.html

However, there are few problems with the concept (discussed in that link).

IMO according to those issues, the Alcubeirre concept would still be moving against the local space time and would still be subjected to the principles of Frame Dragging and Lense-Thirring Effect to go FTL. It's not a huge problem as the ship can still go FTL but only in a slower rate of acceleration.

 

[timewerx]

So the hypothetical inertial dampeners in Star Trek are not needed when the ship is in warp. Correct? Only when impulse drive is engaged.

Yup. In fact, you need to disengage the dampeners or the warp drive will not activate (operation will be prevented by the computer).

However, there is no need for an "impulse drive" if you have a working warp drive.

 

[Radrook]

Yup. In fact, you need to disengage the dampeners or the warp drive will not activate (operation will be prevented by the computer).

However, there is no need for an "impulse drive" if you have a working warp drive.

So impulse drive on any warp drive ship would be a redundancy? How about the expenditure of energy in getting space to warp.
Alcubierre drive - Wikipedia

I would imagine that could be a very significant factor in not warping at speeds below super luminal and in providing the ship with an impulse engine.

 

[FrumiousBandersnatch]

https://phys.org/news/2017-01-alcubierre-warp.html

Oh, that. As I said before, the ship doesn't accelerate, so wouldn't need to decelerate:

"The interior of the bubble is the inertial reference frame for any object inhabiting it.
Since the ship is not moving within this bubble, but is being carried along as the region itself moves, conventional relativistic effects such as time dilation would not apply."​

What other 'popular theories' did you have in mind?

 

[Radrook]

Oh, that. As I said before, the ship doesn't accelerate, so wouldn't need to decelerate:

"The interior of the bubble is the inertial reference frame for any object inhabiting it.
Since the ship is not moving within this bubble, but is being carried along as the region itself moves, conventional relativistic effects such as time dilation would not apply."​

What other 'popular theories' did you have in mind?

But the spce itself transporting the ship is indeed in motion and would need to come to a stop. Anything directly in front of it when it does is obliterated by a shock wave of sorts. So best inform anyone in that region to stay clear cause here we come ready or not! If that doesn't have the potential of starting an interplanetary war with disgruntled aliens who might have one of their spaceships suddenly obliterated then nothing will.
Alcubierre drive - Wikipedia