/sci/ - Science & Math

how do i make an alcubierre drive?

Why haven't we built an Alcubierre drive?

>Use warp drive
>travel backwards in time
Checkmate, Hawking

>Alcubierre drive
How much of a meme is it, sci?

Apparently there's people at NASA 'working on it'. Could there actually be a team determining how it would work and if it's feasable? Or is it all bullshit?

Am brainlet, educate me.

>White–Juday warp-field interferometer

http://earthtech.org/publications/davis_STAIF_conference_2.pdf

So they're trying to bend light with magnetic field or something? How is that going to work since light has no charge or mass?
I've read their article and i've noticed few weird things.

>Perhaps the reader is still struggling with the concept of how a toroidal positive energy density develops a spherical region of negative pressure. The short answer is that is what the math predicts.
Are they fucking serious?

>Since we know how to make a large spacetime expansion boost value
Care to explain?

This whole thing looks like pseudoscience, prominent use of buzzwords like "dark energy" only makes in worse. We don't even know what that is and they act as if everyone does.

>White–Juday warp-field interferometer

http://earthtech.org/publications/davis_STAIF_conference_2.pdf

So they're trying to bend light with magnetic field or something? How is that going to work since light has no charge or mass?
I've read their article and i've noticed few weird things.

>Perhaps the reader is still struggling with the concept of how a toroidal positive energy density develops a spherical region of negative pressure. The short answer is that is what the math predicts.
Are they fucking serious?

>Since we know how to make a large spacetime expansion boost value
Care to explain?

This whole thing smells like pseudoscience, prominent use of buzzwords like "dark energy" only makes in worse. We don't even know what that is and they act as if everyone does.

/sci/entists, what are your thoughts on FTL travel? Do you think we'll ever figure out how to make warp drives without absurd mass/energy requirements? Will we be confined to our galaxy for the rest of our species' lifespan?

I know I'm a pleb, but can someone explain the theoretical framework of warp fields?
https://en.wikipedia.org/wiki/Warp-field_experiments#Theoretical_framework
I'm taking calculus right now, and understanding theories given mathematical formulas like this one is nearly impossible for me now. All I can pick up on is that some of the formulas can be used to graph the effect.

Like what do each of the variables represent, and what does changing them mean/do?

>>7249701
Damn well I live in the RTP area of North Carolina so I'm hoping Glaxosmithkline will take me or something.

>http://mysteriousuniverse.org/2015/04/nasa-may-have-accidentally-developed-a-warp-drive/

we star trek now

>>5952859
is this better?

Needs more Alcubierre drive

>>3613119
If we can ever control space time then yes. We could envelope a ship in an alcumbier bubble to propel it.

Contracting space would probably result in large gravitational forces. If you got a space ship to go to warp while on a planet, the tidal forces could probably punch a hole in the earth the size of the warp bubble.

Yo /sci/, in a fit of boredom I began reading up on faster than light travel (its been an interest of mine for a long time, as I was introduced to scifi by my parents at an early age, meh...) and I was reading up on the Alcuibierre drive.

Tt one point it says this specifically, >For those familiar with the effects of special relativity, such as Lorentz contraction and time dilation, the Alcubierre metric has some apparently peculiar aspects. In particular, Alcubierre has shown that even when the ship is accelerating, it travels on a free-fall geodesic. In other words, a ship using the warp to accelerate and decelerate is always in free fall, and the crew would experience no accelerational g-forces.

I understood what I read there, but am having trouble imagining the implications, assuming you were able to arrive at your destination and the 'bubble' succesfully removed would the passengers imediately get slammed into the wall or floors? (would it matter whether the ship was moving prior to entering the field or while the bubble was still up? also would you be able to change course at all while the bubble was there?) I also remember reading, I think it was on ask.com, that you would need to travel to the destination first by stl methods laying 'train tracks' of Tachyons (which would apparently be implied to exist if there is in fact the exotic matter required to allow this form of travel in the first place), otherwise this method wouldn't work at all, is that true?

If anyone has any thoughts to share it would be appreciated...

http://en.wikipedia.org/wiki/Alcubierre_drive

pic related, example of blue/red shifting shown at top of wikipedia page...

Alcubierre/Warp drive discussion thread.

Current problem: Hawking Radiation