HOT PICKS

Science  01 Sep 2000:
Vol. 289, Issue 5484, pp. 1427b
DOI: 10.1126/science.289.5484.1427b

Protein safari.Biochemists and teachers will welcome the second release of Protein Explorer, a user-friendly software tool for viewing molecules on the Web. Among other new options, visitors can color an enzyme to indicate which amino acids haven't changed across evolution in, say, yeast compared to humans.

www.umass.edu/microbio/chime/explorer

Show me the data. The World Wide Web works great for text, graphics, sound, and even video, but many scientists would like a better way to share raw data sets. So data-mining experts are working on Data Space Transfer Protocol, a set of rules for creating a web of databases. Get the software for DSTP and check out a demo at http://www.dataspaceweb.net/

Mountain view. The Tundra-Cam plops you smack in the middle of an ecological research site atop an 18,700-kilometer ridge in the Colorado Rockies. It's used by ecologists to track snowmelt, vegetation, and such, but Web-based controls let any surfer zoom in on a patch of alpine grass or gaze out across the Continental Divide.

tundracam.colorado.edu

Period pieces. Mendeleev's 1870 rectangular arrangement of the elements by valence electrons still rules on wall charts in labs and classrooms, but various alternatives have been proposed. At the Pictorial Periodic Table, check out Stowe's physicist's version (which arranges elements by quantum levels on planes), Benfey's Spiral Periodic Table (where transition and inner transition metals form arms), and even a three- dimensional spinning table. Most tables are clickable and lead to info on each element.

chemlab.pc.maricopa.edu/periodic/periodic.html

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