Uncategorized

  1. Physics

    To pack a strand tight, make it a helix

    The optimal way to pack long strings into small spaces is to coil them into helices—particularly the types of helices found in proteins and perhaps DNA.

    By
  2. Computing

    Tight packaging for digitized surfaces

    A novel digital compression scheme may make it practical to transmit detailed models of three-dimensional surfaces over the Internet.

    By
  3. Computing

    Computer grid cracks problem

    A large network of powerful computers solved a 32-year-old optimization challenge known as the "nug30" quadratic assignment problem.

    By
  4. Computing

    Strength and weakness in diversity

    Although the Internet's redundancy and diversity help it survive local node malfunctions despite its vast size and complexity, it is vulnerable to attacks aimed specifically at the most highly connected nodes.