Uncategorized

  1. Humans

    Letters from the Feb. 28, 2004, issue of Science News

    It’s tough in there In the arts, we say that material, such as paper, that deteriorates readily because of its composition (“News That’s Fit to Print—and Preserve,” SN: 1/10/04, p. 24: News That’s Fit to Print—and Preserve) has “internal vice.” I suppose that could be said of newspapers on several grounds. Lawrence Wallin Santa Barbara, […]

    By Science News
  2. Math

    Sculpting with a Twist

    There’s more than one way to slice a bagel. A bagel (or a doughnut) can serve as a physical model for a mathematical surface called a torus. You can slice it horizontally (or longitudinally) so that you end up with two halves, each containing a hole.