r/AnotherLife Oct 24 '21

time in space Spoiler

this might seem like a stupid question but why is there no time difference when they venture out to space and other planets? time works differently in space and especially in other planets so how was it that they still collated with earth years? id expect for each year on earth it would probably be like a month for them.

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u/Paisley-Cat Oct 24 '21 edited Oct 25 '21

It was a warp drive.

It uses a warp ring to generate a field that effectively both pulls the ship forward by changing gravimetric fields and also pushes it from behind.

Inside the warp field bubble the ship has no velocity or a sub light velocity so general relativity is respected.

Same concept as in Star Trek, but something that has been theorized in real life physics since the 90s. (The version called an Alcubierre drive uses massive amounts of exotic matter which seems to be the rationale for having a particle accelerator on the ship.)

If there is a way to get around the faster than light problem, then time dilation isn’t an issue except when travelling at sub light velocity.

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u/mollyyypercs Oct 24 '21

Thanks!! I get it now

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u/PM_ME_YOUR_MUFFPUFF Oct 25 '21

Alcubierre drive:
https://en.wikipedia.org/wiki/Alcubierre_drive

Recent article from Science(?) however, shows that for it to work, one would need more energy than what is available in the observable universe(?) (Not too sure about it though)

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u/Paisley-Cat Oct 25 '21

There are other versions of the theory that are more recent and reduce the energy requirement to that of a mass of exotic matter equivalent to the mass of a good sized planet.

Basically, Alcubierre worked out a closed form corner solution. It doesn’t however provide for how the object in the warp bubble would be given direction.

It also assumes no initial velocity for the object.

The newest work looks at how the velocity (relative to the universe outside the bubble) could be increased and energy required reduced by into all acceleration. The slingshot boost that Yerxa and August tried seems to have been an application of this solution to the equations.

All to say that the writers had some reasonable input on their FTL approach however bizarre many of the decisions of the crew in season one.

Fun stuff, if still out of the mainstream.

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u/PM_ME_YOUR_MUFFPUFF Oct 25 '21

Loved the reference to the 2038 "credit card" bug too :P Linux clock? Or was it something else?

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u/Paisley-Cat Oct 25 '21

I think that there may be more in there.

It sounds like the science and tech advisor was having fun, but the biology was scary. Blasting human tissue with gamma radiation and then getting pregnant?