Scientific American Frontiers

Season 14

2004 · 6 episodes · 6h 0m in all

Episodes

1. 1

   1. Losing It

   20 Jan 2004 · 60 min

2. 2

   2. Don't Forget

   11 May 2004 · 60 min

3. 3

   3. Future Car

   19 May 2004 · 60 min

4. 4

   4. Hot Times in Alaska

   15 Jun 2004 · 60 min

5. 5

   5. The Dark Side of the Universe

   22 Jun 2004 · 60 min

6. 6

   6. Coming Into America

   20 Jul 2004 · 60 min

   “Coming into America” explores how prehistoric immigrants (host Alan Alda calls them “the true American pioneers”) might have arrived here---up to 20,000 years ago. Conventional wisdom has been that the “Clovis people” made their way down from Siberia about 13,000 years ago and spread out. But archaeologists interviewed point to artifacts in various places around the U.S. that are far older---and there's evidence that the ice sheets remained in place longer than previously thought---casting doubt on that theory.