The conversation between human and AI assistant.
Why don't they generate artificial gravity in ISS by rotating the ship on its axis, to generate centrifugal force equivalent to gravity?
How do the astronauts sleep in space without a bed?
Astronauts sleep in sleeping bags that are attached to the walls of their crew quarters. They strap themselves into the sleeping bags to stay in one place while they sleep. The bags are designed to keep them from floating around during the night.