News

  1. Tech

    Pores of glass skin shrink from light

    Ultraviolet light can fine-tune the properties of intricately structured, porous films of glass that, among other uses, may make possible the long-sought direct extraction of oxygen and nitrogen gases from air.

    By Peter Weiss
  2. Tech

    Pile-o’-polymers breaks up on command

    Stacks of polymers designed to break apart in acid solution or at a certain voltage may prove useful for releasing drugs, pesticides, or other compounds where and when needed.

    By Peter Weiss
  3. Health & Medicine

    Colonoscopy screening would avert cancer

    Increased use of colonoscopy could significantly reduce the number of colon cancer deaths and wouldn't cost much more overall than other tests.