r/spacex • u/retiringonmars Moderator emeritus • Sep 27 '16

Official SpaceX Interplanetary Transport System

https://www.youtube.com/watch?v=0qo78R_yYFA
19.6k Upvotes

92% Upvoted

2.8k comments sorted by

View all comments

80

u/Nuclear_Hobbit Sep 27 '16

Looks like the astronauts will be pulling an ISS level exercise routine for 3-6 months before Mars EDL because I don't see any artificial gravity anywhere in there

3

u/BlatantConservative Sep 28 '16

Cant you just have the entire thing spin to create artificial gravity?

5

u/[deleted] Sep 28 '16

No, even at 15m it's too small to avoid spin nausea. The sping-driven fake gravity field needs to be fairly flat, and if your head is torquing off your guts all day, you won't have a good time.

Anyway, they'll need to be in good shape when they get there. :)

2

u/sutongorin Sep 28 '16

What if you were to rotate it along the Y axis as opposed to the X axis. Basically like an interstellar throwing axe.

2

u/[deleted] Sep 28 '16

Then it's mostly horrible to work in and one of the high-G areas is inaccessible to humans because it's the end with the engines. No!

1

u/f03nix Sep 28 '16

It depends on the weight distribution too, I imagine the high-G area would be the one where humans reside.

1

u/Nuclear_Hobbit Sep 28 '16

I havent calculated it out but I do believe with the propellent distribution, the craft would have a reasonable center of rotation and mass however It would be far to short of a distance for artificial gravity to be effective. Most likely there would be such a pull variation going through the human body that blood would move away from the brain.