Uncategorized

  1. Earth

    9/11 ash, and more, found in river muck

    Sediment cores pulled from the Hudson River near the World Trade Center site contain a thin layer of metal-rich ash and pulverized debris.

    By Sid Perkins

  2. 19220

    I am puzzled by Shuming Nie’s prognostication that quantum dots will “be the first example of nanotechnology that can really have some practical applications.” Colloidal gold particles of similar size to quantum dots have been used as high-resolution labels in electron microscopy for over 30 years. And due to their light-scattering properties, gold and silver […]

    By Science News
  3. Tech

    NanoLights! Camera! Action!

    Fluorescent particles of semiconductors are giving biologists a new view of cells and proteins.