Search Results for: Bears

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6,915 results

6,915 results for: Bears

  1. Tech

    Reinventing the Yo-Yo

    No longer simple toys, today's pricey yo-yos sport high-tech features—such as ball bearing transaxles and precision string-snagging mechanisms—that permit dazzling new styles and complex tricks.

    By Peter Weiss
  2. Astronomy

    Dark Doings

    A slew of new and proposed experiments, ranging from the cosmic to the subatomic scale, may shed light on why the expansion of the universe is speeding up.

    By Ron Cowen
  3. Earth

    Dead Heat

    New studies suggest that adverse health effects related to global warming aren't just a theoretical concern for the distant future.

    By Sid Perkins