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Science  12 Jun 1998:
Vol. 280, Issue 5370, pp. 1663
DOI: 10.1126/science.280.5370.1663d

Geekspeak glossary. Ever heard of an extranet? If not, never fear: You'll find definitions for this and other Internet-related terms—from proxy server to TCP/IP to cyberpunk—at this site, as well as a guide to how the Internet works.

Neutrino hunt. Hundreds of physicists around the world are trying to catch and weigh neutrinos, the mysterious subatomic particles that may help account for the universe's missing mass (see p. 1689). For links to all these neutrino experiments as well as historical background, go to

Far West rattlings. Click on earthquakes displayed on a map of California and Nevada and get up-to-the-minute positions, magnitudes, and other numbers. The site includes links to other quake info.

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