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  1. Physics

    The Rise of Antibubbles

    Tiny globules of water enclosed by thin shells of air in water that look like bubbles but don't act like them have recently become the objects of serious study.

    By Peter Weiss
  2. 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
  3. 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
  4. 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.