Travels in a Mathematical World has moved. If you click the following link it will try to redirect you to the equivalent page in the new location.

Equivalent page on the new site.

If it goes wrong, try replacing "travelsinamathematicalworld.blogspot.com" in the link you folllowed to get to this page with "travels.peterrowlett.net" (but leave the part after the / in place) and that should send you to the right place. If that doesn't work, visit the new blog homepage and try searching for what you were after. Sorry about this.