mundell.org A little of this, a little of that

My del.icio.us bookmarks for May 21st

• Diamonds tell tale of comet that killed off the cavemen
  “Fireballs set half the planet ablaze, wiping out the mammoth and America’s Stone Age hunters.” Wow!
  (tags: news comet caveman history science )

In Linkblog on 21 May 2007 with no comments