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Why Things Break

Scientists have known for most of this century that chemistry is responsible for whether a solid shatters or bends. But only now are they finding a way to predict which type of failure will win

By Mark E. Eberhart

The Unmet Challenges of Hepatitis C

Some 1.8 percent of the U.S. adult population are infected with the hepatitis C virus, most without knowing it

By Adrian M. Di Bisceglie and Bruce R. Bacon

The Hidden Ocean of Europa

Doodles and freckles, creamy plains and crypto-icebergs--the amazing surface of Jupiter's brightest icy moon hints at a global sea underneath

By Robert T. Pappalardo, James W. Head and Ronald Greeley

Preserving Nefertari's Legacy

The tomb of this ancient Egyptian queen is testament to the great love of Pharaoh Ramses II. Its preservation is testament to advances in conservation

By Neville Agnew and Shin Maekawa

LMDS: Broadband Wireless Access

PAUL W. SHUMATE, JR., is executive director of the Lasers and Electro-Optics Society of the Institute of Electrical and Electronics Engineers. Prior to August 1999 he was a chief scientist and assistant general manager at Telcordia Technologies (formerly Bellcore), in Morristown, N.J. He can be reached at


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