Uncategorized

  1. Archaeology

    Could the Anasazi have stayed?

    New computer simulations of the changing environmental conditions around one of the Anasazi cultural centers in the first part of the last millennium suggest that drought wasn't the only factor behind a sudden collapse of the civilization.

    By Sid Perkins
  2. Earth

    Chinese records show typhoon cycles

    Historical records compiled by local governments along China's southeastern coast during the past 1,000 years suggest that there's a 50-year cycle in the annual number of typhoons that strike the area.

    By Sid Perkins
  3. Earth

    Cave formations yield seismic clues

    Analyses of toppled stalagmites and other fallen rock formations in two Israeli caves may provide hints about the rate of ancient earthquakes in the area.