Notebook

  1. Humans

    Caring for a Historic House

    The National Park Service offers advice on taking care of the exterior—or skin—of an old home. From repairing shingles and fixing chimneys to painting trim and improving site drainage, this online course provides handy pointers about what to do and what not to do to keep an historic house in good shape. Go to: http://www2.cr.nps.gov/tps/roofdown/index.htm

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  2. Humans

    From the July 7, 1934, issue

    Fireworks in Fairyland, controlling the sex of warm-blooded animals, and deadly atmospheres on Jupiter and Saturn.

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  3. Health & Medicine

    Medical Advice

    Looking for medical advice? Medicine On-Line is one place to go. The site covers topics ranging from vaccines to snake bites to white-coat hypertension (the tendency for a patient’s blood pressure to rise in the presence of a doctor). Affiliated with the International Journal of Medicine, Medicine On-Line taps the knowledge and experience of physicians […]

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  4. Humans

    From the June 30, 1934, issue

    A beetle's eye view of George Washington, cosmic rays, and visualizing air currents around airplanes.

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  5. Earth

    Sky Lights

    Devoted to atmospheric optics, this Web site offers beautifully illustrated explanations of spectacular phenomena ranging from rainbows to ice haloes. Created by physicist Les Cowley, it features amazing images, along with explanations of how the imaged effects were created by nature. The ice halo section offers downloadable software for simulating various types of halos. Go […]

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  6. Humans

    From the June 23, 1934, issue

    Young desert hawks in their nest, properties of newly found element 93, and the effect of high pressure on phosphorus.

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  7. Astronomy

    Tracking Solar Activity

    Part of the Student Observation Network, this NASA Web site offers information and activities related to solar flares and storms. Vividly illustrated online tutorials provide guidelines and background for observing sunspots, recording radio waves, collecting data from magnetometers, and viewing auroras. Learn how to make a sunspot viewer or magnetometer. See live images of the […]

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  8. Humans

    From the June 16, 1934, issue

    Fanciful creations of the photographer's art, the possible addition of element 93 to the periodic table, and a Triceratops skull on display.

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  9. Backyard Nature

    Naturalist Jim Conrad has created a friendly, nicely illustrated introduction to studying nature, starting in your own backyard. The Web site features information on plants, animals, and fungi that might thrive in a backyard. It also provides basic information on ecology, geology, naming and classifying living things, and other topics. Look for the list of […]

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  10. Humans

    From the June 9, 1934, issue

    Mexican archaeology, dry ice for shrinking metals, and choosing optimal flight paths for airplanes.

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  11. Physics

    Light Projects

    This colorful, interactive Web site provides a lively introduction to the nature of light and spectra. A product of Project LITE (Light Inquiry Through Experiments) at Boston University, the site offers a variety of applets, activities, and materials on topics ranging from color mixing and afterimage effects to moire patterns and geometrical optics. A fascinating […]

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  12. Humans

    From the June 2, 1934, issue

    The first chimpanzee twins born in captivity, increased speed and safety for aircraft, and a new pH indicator.

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