Uncategorized

  1. Animals

    Seabirds take record summer vacations

    Sooty shearwaters that breed in New Zealand have set a new record for off-season travel, covering 64,000 kilometers between visits to their mating ground.

    By Susan Milius
  2. Tech

    Nanotubes signal when engine oil needs changing

    A new, easy-to-fabricate sensor made from carbon nanotubes detects when automobile-engine oil needs replacement.

    By Peter Weiss
  3. Tech

    Hydrogen hopes in carbon shells

    Lithium atoms added to buckyball surfaces bestow on these molecules a remarkable capacity to store hydrogen.

    By Peter Weiss
  4. Earth

    Air conditioning could heat the world

    Global warming predicted for the coming decades may decrease winter heating bills in some parts of the United States, but producing the extra electricity needed for summertime air conditioning will create increased emissions of planet-warming carbon dioxide.