17 upvotes, 1 direct replies (showing 1)
View submission: Ask Anything Wednesday - Physics, Astronomy, Earth and Planetary Science
If you were still in a vacuum, you could push the bag to a collapsed state, or "unsquish" it to any shape you want that the plastic will support. There is nothing on the inside or outside to stop you from doing that (ignoring static electrical charges that may have accumulated)
If you took the bag to normal atmosphere, it would squish back down by itself, since atmospheric pressure will press inward, and there is nothing on the inside to press back
Comment by InfiNorth at 26/04/2023 at 19:18 UTC
3 upvotes, 1 direct replies
Thank you. Years ago I asked the same question on this sub and people were adamant that you couldn't "expand" the bag in a vacuum... despite the fact that there was nothing pressing in to prevent it.