Uncategorized

  1. Math

    Extra Time, Math, and the SAT

    Extra time on the math portion of the SAT helps the most able students the most.

    By Ivars Peterson
  2. Humans

    From the May 5, 1934, issue

    Steel pipes of the Boulder Canyon project, diphtheria and the blood-brain barrier, and weather effects of volcanic eruptions.

    By Science News
  3. Astronomy

    Closing In on a Monster: A black hole’s dusty environs show themselves

    The first clear picture of the immediate surroundings of a supermassive black hole confirms that these gravitational monsters hide behind thick belts of dust.

    By Ron Cowen
  4. Health & Medicine

    Cord Blood to the Rescue: Infusions help babies with Hurler’s syndrome

    Umbilical cord blood transplants boost overall health and survival in patients with the rare hereditary condition called Hurler's syndrome.