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  1. Tech

    Cool Contraptions

    The J. Paul Getty Museum’s intriguing online exhibition, “Devices of Wonder,” features optical devices, robots, thinking machines, and other fanciful contrivances of yesteryear. Check out a variety of ingenious contraptions for projecting images, playing music, revealing secrets, and more. Go to: http://www.getty.edu/art/exhibitions/devices/choice.html

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  2. Humans

    From the April 12, 1930, issue

    MEDICAL WORLD HONORS DR. WELCH While the whole medical world united in honoring Dr. William Henry Welch on his 80th birthday on April 8, and the president of the United States delivered an address at the Washington celebration, few outside the world of science know who Dr. Welch is or why he was honored in […]

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  3. Physics

    Interacting with Physics

    Drag an electric charge to see how it affects a nearby water molecule.