/sci/ - Science & Math » Thread #11505394

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Anonymous Fri 27 Mar 04:42:42 2020 No.11505394 View Reply Original Report

Quoted By: >>11505693 >>11506749 >>11506754 >>11506759

What mathematics do I need to understand alcubierre warp drive?

Anonymous

Anonymous Fri 27 Mar 2020 05:36:53 No.11505532 Report

Quoted By:

A lot

Anonymous

Anonymous Fri 27 Mar 2020 05:38:02 No.11505534 Report

Quoted By: >>11505580

https://en.wikipedia.org/wiki/Alcubierre_drive#Mathematics

Anonymous

Anonymous Fri 27 Mar 2020 06:08:36 No.11505580 Report

Quoted By:

>>11505534
It doesn't tell me which subjects though.

Anonymous

Anonymous Fri 27 Mar 2020 07:01:54 No.11505693 Report

Quoted By:

>>11505394
The mathematics of how larping scifi projects that require imaginary “negative energy “ helped someone get a grant.

Anonymous

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Anonymous Fri 27 Mar 2020 17:58:19 No.11506749 Report

Quoted By: >>11507638

>>11505394
Ask the United States Navy. They seem to have some fun toys these days based on their patent filings.

https://patents.google.com/patent/US10144532B2/en

Anonymous

Anonymous Fri 27 Mar 2020 18:02:01 No.11506754 Report

Quoted By: >>11506758

>>11505394
Probability theory so you can calculate the odds that a century of observations all supporting special relativity and the impossibility of global FTL are wrong.

Anonymous

Anonymous Fri 27 Mar 2020 18:04:29 No.11506758 Report

Quoted By: >>11506762

>>11506754
it doesn't violate special relativity, that's the point

Ksenia !!/HQMg5yHuiK

Ksenia !!/HQMg5yHuiK Fri 27 Mar 2020 18:04:41 No.11506759 Report

Quoted By:

>>11505394
Serious answer: Riemannian geometry. You can start by reading about linear algebra, then differentiable manifolds.

Anonymous

Anonymous Fri 27 Mar 2020 18:07:19 No.11506762 Report

Quoted By: >>11506777

>>11506758
Then it allows for time travel. It's trivial to create an anti-telephone if you can globally travel faster than c, even if you locally aren't.

Anonymous

Anonymous Fri 27 Mar 2020 18:17:05 No.11506777 Report

Quoted By: >>11506789

>>11506762
>if you can globally travel faster than c
you're not "traveling" anywhere and the same effect of severely bending space happens to time as well

Anonymous

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Anonymous Fri 27 Mar 2020 18:23:51 No.11506789 Report

Quoted By: >>11506791

>>11506777
>you're not "traveling" anywhere
You certainly are from external reference frames. Alcubierre drives, wormholes, teleportation, whatever scifi gimmick you like -- all of them allow you to be at spacelike separated events. So just activate your drive twice, and w'allah, you've travelled backwards in time.

Anonymous

Anonymous Fri 27 Mar 2020 18:25:33 No.11506791 Report

Quoted By: >>11506802

>>11506789
>You certainly are from external reference frames
no, this is literally the point of the alcubierre drive

Anonymous

Anonymous Fri 27 Mar 2020 18:29:53 No.11506802 Report

Quoted By:

>>11506791
Then it can't be used to travel to spacelike separated events and therefore isn't FTL. What goes on between the green and red cross in the above pic is utterly inconsequential to the causality violation.

Anonymous

Anonymous Fri 27 Mar 2020 23:51:06 No.11507529 Report

Quoted By:

not math but you need thermodynamics to understand why it won't work

Anonymous

Anonymous Sat 28 Mar 2020 00:41:30 No.11507638 Report

Quoted By:

>>11506749
Whats with all these absurd patents? Is it to fuck with china?

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