Phoenix or Bust!
Four weeks from today, André and I will fly from Frankfurt via London-Gattwick to Phoenix, AZ for a four-week vacation. Like the last time, we will hit the road with a rental car and visit a couple of national parks and similar sites. This time we plan to cover mainly Arizona and New Mexico.
(9/3/1999 in San Francisco, CA, photographed by Bob Bierman)
New York Times (free registration required): 143-Year-Old Problem Still Has Mathematicians Guessing. By Bruce Schechter, author of My Brain is Open: The Mathematical Journeys of Paul Erdös.
Link via Garret and Jeff.