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  1. Humans

    Letters from the July 1, 2006, issue of Science News

    Looking into the future Your article states that farsightedness will be treated with these new electric lenses (“Switch-a-Vision: Electric spectacles could aid aging eyes,” SN: 4/22/06, p. 243). With some tweaking, could nearsightedness and astigmatism be treated as well? Could binoculars, telescopes, and microscopes use this technology? Roger CurnowGrand Rapids, Mich. Yes and yes, says […]

    By Science News
  2. Math

    Counting Franklin’s Magic Squares

    Benjamin Franklin's remarkable magic squares are just three of more than 1 million possibilities. For more math, visit the MathTrek blog.

    By Ivars Peterson
  3. Humans

    From the June 20, 1936, issue

    A lightning portrait, the effects of cosmic rays, and helium to prevent the bends.