For years my basement has been filling up with clothes-dryer lint, and I have wondered why. I have advanced theories and even formulated experiments to choose among the theories. But after reading Professor Sherman's article, I looked at the flexible ducting that leads from my dryer down to the basement, across the basement ceiling, and out a vent at the opposite wall. I now intend to recouple the sections, using another sealant as Sherman recommends. I will keep you informed.
Some people never learn.
Xerox exists because of one big bang, the xerographic copier. Another could have made it a world leader in computers. It happened at Xerox Palo Alto Research Center, only to be discarded by Xerox management. Now it is called the Macintosh. Charles W. McCutchen Princeton, New Jersey Copyright 1999, The American Physical Society.