This site is to be used for reprinting old posts from my blog on the old University of Minnesota site called UThink. The University has retired the site and direct links to material on it are not longer possible.
As matters arise where these old posts seem relevant, they will be resuscitated at this location. The original date will always be included. But the reprinted piece will have the date when it has been posted again.
retired U of M faculty member
U of M alumnus, 1973