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  1. Humans

    From the March 14, 1936, issue

    Moving a giant mirror and deadly neutron rays.

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  2. Humans

    Explore Your Knowledge

    Test your math and science knowledge at the National Center for Education Statistics Web site. Select a test topic and grade level (4th or 8th grade), then see how you do on a set of multiple-choice questions. The questions are from the Trends in International Mathematics and Science Study (TIMSS). Go to: http://nces.ed.gov/nceskids/eyk/

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  3. Humans

    Science’s New Guard: Winners of annual competition get honors and hefty scholarships

    For her water-quality research project, an 18-year-old from Utah earned top honors among 40 competitors in the final phase of the annual Intel Science Talent Search.