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  1. Humans

    From the June 17, 1933, issue

    STRATOSPHERE SHELL PREPARED FOR NAVIGATORS The little metal sphere that will be the stratosphere home of two men and scientific instruments for a few hours next month is rapidly being completed (SNL, May 27, ’33, p. 323). It is pictured on the front cover with Dr. Jean F. Piccard emerging at the unfinished vertex of […]

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  2. Earth

    Rocks for Kids

    Can’t tell pyrite from magnetite? Looking for an entertaining, colorful introduction to rocks and minerals? The Mineralogical Society of America has created a Web site, aimed at kids, that provides information about minerals and their classification, properties, and uses. It includes a selection of games with a mineral theme.