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March 1997

Volume 50, Issue 3

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ARTICLES

Select this Article		Securing Information with Optical Technologies Bahram Javidi


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	+ -	Show Topic The next generation of data security systems may thwart counterfeiters and eavesdroppers by employing new systems and devices based on optical information processing.

Select this Article		Time Reversed Acoustics Mathias Fink


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	+ -	Show Topic Nowadays we can intercept a spreading sound wave, time‐reverse it and send it back to the source. That should greatly enhance our ability to locate gallstones and submarines.

Select this Article		Thermoelectric Materials: New Approaches to an Old Problem Gerald Mahan, Brian Sales, and Jeff Sharp


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	+ -	Show Topic Novel approaches to the creation of unusual electronic materials may result in more efficient thermoelectric refrigerators and power sources with no moving parts.

PHYSICS UPDATE

Select this Article		Physics Update Phillip F. Schewe


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REFERENCE FRAME

Select this Article		Diary of a Nobel Guest N. David Mermin


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LETTERS

Select this Article		Insurmountable Engineering Problems Seen as Ruling out ‘Fusion Power to the People’ in 21st Century William E. Parkins, James A. Krumhansl, and Chauncey Starr


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Select this Article		Four Factors and One Criterion Are Key to Improving Peer Review Ronald N. Kostoff


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Select this Article		Avoid Bumpy Road to Removing Lake's CO₂; Just Pay the Piper William C. Evans


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Select this Article		Calculating Women Had Major Wartime Roles at Los Alamos Ruth H. Howes and Caroline L. Herzenberg


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Select this Article		Letters on Diversity Article Prompt Antisemantic Reply Jim Ferguson


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Select this Article		Make Science Links with Cuba Institutional, Not Solely Personal Edgar Villchur


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Select this Article		Currency Matters: Physicist Is Honored, Basic Physics Ignored Gabriel Lengyel and Gideon Lichfield


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Select this Article		Researcher Clarifies Story of Discovery of Axial Vector Anomaly Stephen L. Adler


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Select this Article		Corrections See Also: Erratum


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SEARCH AND DISCOVERY

Select this Article		Bose Condensates are Coherent Inside and Outside an Atom Trap Barbara Goss Levi


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	+ -	Show Topic A recent experiment signals the debut of a rudimentary atom laser, consisting of pulses of coherent atoms “fired” from an atom trap.

Select this Article		Trap Holds Condensates of Two Different Spin States at Once Barbara Goss Levi See Also: Erratum


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Select this Article		Quantum Black Holes Are Tied to D‐Branes and Strings Graham P. Collins


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	+ -	Show Topic Theorists have used string theory and nonperturbative objects known as D‐branes to count the quantum microstates of black holes. This major step forward in our understanding of quantum gravity may resolve the longstanding “paradox” of information loss in black hole evaporation.

Select this Article		Can Helium Mixing Explain the Solar Neutrino Shortages? Bertram Schwarzschild


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OPINION

Select this Article		Reflections on the Sokal Affair: What Is at Stake? Silvan S. Schweber


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BOOKS

Select this Article		Volcanoes of the Solar System and Planetary Volcanism: A Study of Volcanic Activity in the Solar System Charles Frankel, Peter Cattermole, and Don L. Anderson, Reviewer


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Select this Article		Infinite Potential: The Life and Times of David Bohm F. David Peat and James T. Cushing, Reviewer


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Select this Article		In Search of the Ultimate Building Blocks Gerard 't Hooft and Robert H. March, Reviewer


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Select this Article		Computational Methods for Fluid Dynamics Joel H. Ferziger, Milovan Peric, and Anthony Leonard, Reviewer


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Select this Article		Empire of Light: A History of Discovery in Science and Art Sidney Perkowitz and Pierre Meystre, Reviewer


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Select this Article		New Books


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NEW PRODUCTS

Select this Article		Focus on Power Supplies


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WE HEAR THAT

Select this Article		Cornell, Wieman to Receive King Faisal Prize


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Select this Article		In Brief


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OBITUARIES

Select this Article FREE		Nevill Francis Mott Brian Pippard


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Select this Article FREE		N. Bruce Hannay William O. Baker See Also: Erratum


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Select this Article FREE		Ralph Kronig Max Dresden


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Select this Article FREE		Robert Pringle Lionel Funt, Sidney Standil, and Erich Vogt


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Select this Article FREE		Arnold Siegert Max Dresden


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Select this Article FREE		Robert Betchov Albin A. Szewczyk


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WASHINGTON REPORTS

Select this Article		Clinton Sends His 1998 R&D Budget to Capitol Hill Expecting Bipartisan Support, but All Is Not Rosy Irwin Goodwin


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Select this Article		Without Explosions to Test the Aging Nuclear Arsenal, Bomb Builders Turn to Inertial Fusion and Supercomputers Irwin Goodwin


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PHYSICS COMMUNITY

Select this Article		Astronomy Community Works to Adapt to Changes at NOAO Toni Feder


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Select this Article		The Physics Chanteuse Blends Cabaret and Science Jean Kumagai


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Select this Article		Canadian Accelerator Shut Down, Its Director Gets the Boot Toni Feder


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Select this Article		A Front‐of‐the‐Envelope Calculation Toni Feder


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Select this Article		In Brief


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Select this Article		Web Watch Graham P. Collins


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March 1997

Volume 50, Issue 3

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