This board is dedicated to Diane Fitzgerald who has provided inspiration, encouragement and support to fellow beaders through her countless articles, books and classes. This stitch is also known as Cheyenne or Commanche stitch. 99 Pins1.75k Followers.
Probably limited a small bit by structural strength, i.e. more acceleration means a stronger and heavier structure. For manned rockets, the G forces are even lower to accomodate the astronauts. So I'm assuming that even lower accelerations are only possible if you trade off fuel efficiency.
Put the room somewhere pathological, like in the center of the earth, or at a higher elevation. Probably outside the atmosphere to actually notice anything. Drop the room, so you experience freefall (zero gravity) until it hits something, whereupon you don't experience anything. (note that this is the same as putting it in orbit. The zero-g in orbit that you see astronauts experiencing comes from the freefall, not the earth's gravity, which is pretty much the same).