Uncategorized

  1. Health & Medicine

    Clot buster attached to red blood cells avoids complications

    Attaching a clot-busting drug to red blood cells limits the drug's side effects, a study in animals shows.

    By Nathan Seppa
  2. Chemistry

    Chemical rings act as a minirotor

    Interlocked molecular rings form new minirotors, including some in which scientists can control the rotational direction.

    By Jessica Gorman

  3. Naps with stages spark learning

    Napping shows potential as a way to stimulate learning.

    By Bruce Bower
  4. Humans

    From the August 5, 1933, issue

    A MILLION YEARS OF MAN A million years of the past history of man, as he climbed upward through the stone age, are recreated in exhibits and life-sized models and dioramas just placed on view by the Field Museum in Chicago.