The foam in Captain Glenn's bathtub changes from a lot, to none at all, to a lot again.
Misty takes a drink from the robot waiter and sets it on the tall side table. She sits on the couch to take some pills and the same drink is suddenly in front of her on the low coffee table.
The station seems to have an artificial gravity that can be turned on and off at will. The habitat rings however also rotates, creating an artificial gravity all on their own. The resulting gravity would have the inhabitants walk partly on the edge windows as that would be the real direction of the resulting artificial gravity.