Conceptual Physics (12th Edition)

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

Chapter 13 - Think and Explain: 64


Designs in very tall buildings include sections of horizontal piping, to avoid having a long vertical drop. Sewage is allowed to drop through small vertical segments. It comes to a temporary stop at the horizontal sections, flows horizontally, then continues onward to the next short vertical drop. (source:
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