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April 2010

Volume 63, Issue 4

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The tangled tale of phase space

David D. Nolte
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Phase space has been called one of the most powerful inventions of modern science. But its historical origins are clouded in a tangle of independent discovery and misattributions that persist today.
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Laboratory architecture: Building for an uncertain future

Stuart W. Leslie
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Three iconic laboratories constructed in 1966 reveal how architectural design and scientific culture can help—or hinder—a building's ability to adapt to the changing discipline it serves.

Frontiers in spin‐polarized tunneling

Jagadeesh S. Moodera, Guo‐Xing Miao, and Tiffany S. Santos
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Thanks to recent advances in materials research, magnetic tunnel junctions that control the flow of polarized electrons are poised to revolutionize information technology.
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More variations on Aharonov–Bohm

Peter A. Sturrock, Timothy R. Groves, Alexander Ershkovich, C. Alden Mead, Herman Batelaan, and Akira Tonomura
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Tools, trophies in interactive learning

Erik Brogt and David C. Rine
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Learning too well from Wheeler

Terry Goldman
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Prof, students not demoralized

Emily A. Carter
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Teaching teachers and reaching students

Andrew Mugler and Daniel Kleppner
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Correction

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Trapped nobelium ions yield first direct measurements of transuranic masses

Bertram Schwarzschild
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In the search for the island of stability expected to lie not far beyond the heaviest known elements, it will help to have good measurements of nuclear binding energies along the way.

Optical refrigeration sets solid‐state cooling record

Johanna Miller
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Certain high‐purity solid materials can be cooled by an all‐solid‐state laser‐based system.

A single‐component organic crystal is ferroelectric at room temperature

Charles Day
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Hydrogen bonds that hold croconic acid crystals together are responsible for the material's high spontaneous polarization and strong ferroelectric effect.

Mercury isotopes in Arctic snow exhibit mass‐independent fractionation

Johanna Miller
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Magnetic and nonmagnetic isotopes behave differently in chemical reactions initiated by sunlight.

Physics Update

Jermey N. A. Matthews, Steven K. Blau, Richard J. Fitzgerald, and Charles Day
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ITER collaboration defuses standoff

Toni Feder
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The multinational, multicultural, multibillion‐dollar fusion test reactor is set to get back on track with a shorter‐than‐proposed additional delay.
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Superstation in New Mexico would unite fragmented US electrical grid

Jermey N. A. Matthews
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High‐Tc superconductor cables would provide interregional access to renewable energy.

National Science Board warns of slide in US competitiveness

David Kramer
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Board instructs NSF to select “truly transformational” research proposals and advises White House to ensure that US retains international leadership in key fields.

New light source is Spain's biggest science facility

Toni Feder
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News Notes

Toni Feder
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Web Watch

Charles Day
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Special report: Obama's 2011 budget proposes one more year of growth for science and technology

David Kramer
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Swollen with stimulus monies, 2010 R&D totals are a tough act to follow. And the president's call for a spending freeze points to austere times ahead.
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Lake Views: This World and the Universe

Steven Weinberg and Leonard Susskind, Reviewer
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The Silicon Web: Physics for the Internet Age

Michael G. Raymer and James C. Phillips, Reviewer
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From Eternity to Here: The Quest for the Ultimate Theory of Time

Sean Carroll and Andreas Albrecht, Reviewer
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Information, Physics, and Computation

Marc Mézard, Andrea Montanari, and Massimo Franceschetti, Reviewer
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New Books

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Focus on nanoscience and nanotechnology

Andreas Mandelis
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Praveen Chaudhari

Supratik Guha, Robert Rosenberg, and Jochen Mannhart
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Manfred Robert Schroeder

Charles Schmid and Gerhard M. Sessler
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Neutrino mass and the origin of matter

Rabindra N. Mohapatra
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Taming turbulence

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