Uncategorized

  1. Astronomy

    Stellar Switch: Sun not alone in making magnetic flip-flops

    After years of searching, researchers have for the first time documented that a star other than the sun flips its magnetic poles.

    By Ron Cowen
  2. Earth

    Going Down: Climate change, water use threaten Lake Mead

    If climate changes as expected and future water use is not curtailed, there's a 50 percent chance that Arizona's Lake Mead, one of the southwestern United States' key reservoirs, will become functionally dry in the next couple of decades.

    By Sid Perkins

  3. 19929

    In reference to this article, scarcity requires society to allocate. Usually markets do a better job than law at allocating efficiently and fairly.