Uncategorized

  1. Earth

    A slump or a slide? Density decides

    Using a full-scale simulator, researchers showed that just a small difference in soil density determines whether a landslide becomes a fast-moving killer or merely one that slowly slumps downhill.

    By Sid Perkins
  2. Materials Science

    Scientists tone down silicon rockers

    Researchers have created pairs of silicon atoms that stay level instead of slowly rocking in place, permitting scientists to study silicon-surface reactions in unprecedented detail.

    By Jessica Gorman
  3. Materials Science

    High-temperature ceramics takes flight

    A recent NASA flight test of ultrahigh-temperature ceramic materials might lead to a new aerospace design that would make the space shuttle look downright old-fashioned.

    By Jessica Gorman
  4. Astronomy

    Invisible Universe

    X-ray astronomy opens a new window on the most energetic cosmic events.