News

  1. Physics

    Stradivari’s secrets

    Three-dimensional imaging of a classic violin's vibrations explains the instrument's superior ability to direct sound to the audience.

    By Davide Castelvecchi
  2. Chemistry

    A sweet way to replace petroleum?

    Thanks to a new chemical process, many products now manufactured from petroleum could one day be made from sugar molecules.

    By Sid Perkins
  3. Health & Medicine

    Nerves are key to longevity effect

    The life-extending effect that some animals get from calorie-restricted diets may depend on signals from the brain.

    By Patrick Barry
  4. Earth

    Double-acting bacteria immobilize toxic nanoparticles

    Bacteria lurking in the bowels of an abandoned Wisconsin mine might help remove toxic metals from polluted water.