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Science  10 Dec 1999:
Vol. 286, Issue 5447, pp. 2039
DOI: 10.1126/science.286.5447.2039b

Metaphysical inquiry. This site's MetaPhys documents search engine combs through physics preprint servers such as that of Los Alamos, major publishers' sites, and even papers posted on departmental servers. You'll also find an international directory of physics departments, conferences, and other resources.

Chemical sleuthing. It can take students awhile to get familiar with the squiggles on an infrared spectroscopy or nuclear magnetic resonance graph, techniques used to identify chemicals. WebSpectra aims to smooth the way with a set of problems—spectra and structures for 30 mystery compounds.∼webspectra

Watching creationism. Want to dig into the debate over teaching creationism in schools? Find out the latest on Kansas, read up on key court decisions, and more at this site from a group headed by a well-known proponent of teaching evolution. The Making Connections page lists sites on both sides—from creationist organizations to museum exhibits on evolution.

Fertile ground. The Spermatology Home Page offers background on fertility treatments, a sperm image gallery (check out the intriguing shapes of dolphin, bat, and possum sperm), and many good links: reproductive biology conferences, embryology discussion lists, pages on environmental estrogens, and more. For a fun break from the bench, listen to Monty Python's “Every Sperm Is Sacred.”

Electrifying. Read up on Benjamin Franklin, reacquaint yourself with the differences between a semiconductor and an insulator, or bone up on electronics theory at Electricity Online, this year's winner in Thinkquest, a contest for Web sites designed by high school students. Or check out runner-up sites covering single-celled biology, cosmology, and other topics at

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