News

  1. Tech

    Dream Machines from Beans: Legume proteins provide motion

    Plant proteins swell and shrink in response to calcium, sparking new ideas for micromachines.

    By Kate Ramsayer
  2. Health & Medicine

    Early Warning? Spinal fluid may signal Alzheimer’s presence

    Spinal-fluid concentrations of two compounds already linked to the disease may reveal whether a person has Alzheimer's disease.

    By Nathan Seppa
  3. Paleontology

    Ratzilla: Extinct rodent was big, really big

    Scientists who've analyzed the fossilized remains of an extinct South American rodent say that the creatures grew to weigh a whopping 700 kilograms.

    By Sid Perkins
  4. Tech

    Channeling light in the deep sea

    Light-conducting fibers that naturally sprout from certain deep-sea sponges may hold lessons for makers of optical fibers for telecommunications.