Notebook
- Math
Paper Enigma
The enigma machine was used by Germany during World War II to encrypt and decrypt messages. Created by Mike Koss, the plans and detailed instructions offered on these Web pages allow you to build your own fully functioning, paper version of this infamous machine. Go to: http://mckoss.com/Crypto/Enigma.htm
- Humans
From the April 6, 1935, issue
Early cherry blossoms in Washington, D.C., nebulae as remnants of exploded stars, and 6,000-year-old leftovers.
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Inner Tube of Life
Science magazine presents a striking portrait of the human gut in a special collection of articles and features devoted to the flora, development, immunology, diseases, and more of this remarkable, 10-foot-long tube. The Web pages include an interactive poster displaying the gut in all its glory. Requires free registration. Go to: http://www.sciencemag.org/sciext/gut/
- Humans
From the March 30, 1935, issue
Dust storms over Washington, D.C., 300 successive generations of fruit flies, and the world's oldest cemetery.
- Humans
Science Cartoons
The science-themed cartoons of Sidney Harris have entertained readers of magazines ranging from American Scientist to The New Yorker for many years. You can find a selection of his delightful cartoons, organized by topic, in this Web gallery. Go to: http://www.sciencecartoonsplus.com/gallery.htm
- Astronomy
Worlds of Astronomy
British astronomer and writer David Darling has created an impressive, online encyclopedia devoted to topics in astronomy, astrobiology, spaceflight, space physics, and much more. From the Abell cluster to the Zwicky Catalogue, the site provides clear, straightforward explanations of a variety of concepts, along with brief biographies and much other material, including relevant images. Go […]
- Humans
From the March 23, 1935, issue
Darwin's favorite plant is re-studied, rare hydrogen isotope is extracted from water, and need for strong lighting is questioned.
- Humans
From the March 16, 1935, issue
A Russian institute celebrates an anniversary, a new instrument measures both heat and humidity, and early speculations about antimatter.
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Wolf Search
For those fascinated by wolves, retired biology professor Bill Forbes has developed a Web site devoted to these amazing, magnificent creatures. The site provides links to a wide variety of publications, including research articles and other materials, about wolves. It also includes wolf sounds, images of wolf skulls, quizzes, and even an interactive crossword puzzle. […]
- Humans
From the March 9, 1935, issue
How early fish learned to swim, a long-distance record for short radio waves, and tidal effects inside Earth.
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Ospreys in the Classroom
The University of Minnesota’s Raptor Center offers a set of multidisciplinary lesson plans introducing students from grades four through eight to raptors. Topics range from predator-prey relationships and habitats to environmental sampling. The lessons focus mainly on learning about ospreys. Go to: http://www.cvm.umn.edu/depts/raptorcenter/education/lessonplans/
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From the March 2, 1935, issue
A new telescope nears completion, a new therapy for heart disease succeeds, and a new low temperature is reached.
