Conceptual Physics (12th Edition)

Published by Addison-Wesley
ISBN 10: 0321909100
ISBN 13: 978-0-32190-910-7

Chapter 14 - Think and Discuss: 104

Answer

Yes, it could "rise".

Work Step by Step

The rotating habitat creates the illusion of artificial gravity (see pages 147-149) because it is an accelerating reference frame. Similar to the situation on Earth, the maximum air density is at the "bottom," near the outer rim of the habitat. The air density decreases as you approach the central axis of the cylinder. A helium balloon will float from a region of greater air pressure to a region of lower air pressure, toward the center of the rotating habitat.
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