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September 2012

Volume 65, Issue 9

cover: Between the planes of a high-temperature copper oxide superconductor, illustrated here, charge transport can occur through two separate mechanisms: the incoherent hopping of quasiparticles and the superconducting tunneling of Cooper pairs (yellow spheres). An ultrafast mid-IR light pulse can turn on that Cooper-pair tunneling and thereby drive the material into a superconducting phase in a matter of picoseconds. For more on such ultrafast manipulation of materials, see the article by Joseph Orenstein on page 44. (Courtesy of Andrea Cavalleri, Oxford University.)

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Select this Article FREE		Dance of the microswimmers Eric Lauga and Raymond E. Goldstein


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Select this Article FREE		Anatomy of a fall: Giovanni Battista Riccioli and the story of g Christopher M. Graney


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	+ -	Show Topic A centuries-old Latin text suggests that Earth’s gravitational pull was first measured not by Galileo but by a little-known Italian astronomer and priest.

Select this Article		Ultrafast spectroscopy of quantum materials Joseph Orenstein


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	+ -	Show Topic Subpicosecond laser pulses can selectively excite modes of strongly correlated electron systems and controllably push materials from one ordered phase to another.

Readers' Forum

Environmental intelligence, basic thermodynamics, and extreme weather

Select this Article FREE		Environmental intelligence, basic thermodynamics, and extreme weather Nancy Colleton


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Select this Article FREE		Environmental intelligence, basic thermodynamics, and extreme weather Jonathan Allen


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A brief note on the Long Now clock

Select this Article FREE		A brief note on the Long Now clock Gregory L. Baker


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Signal to noise in the search for gravitational waves

Select this Article FREE		Signal to noise in the search for gravitational waves Bruce Schulte


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In memory of Niels Bohr

Select this Article FREE		In memory of Niels Bohr Naomi Pasachoff


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	+ -	Show Topic A crossword puzzle honoring the upcoming 100th anniversary of the Bohr atom.

Signal to noise in the search for gravitational waves

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Checking numbers on CO₂ forcing

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Resistivity in ordinary and strange metals: A clarification

Select this Article FREE		Resistivity in ordinary and strange metals: A clarification Hong Liu


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Search and Discovery

Select this Article		The Higgs particle, or something much like it, has been spotted Johanna L. Miller


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Select this Article		Archimedes’s principle gets updated R. Mark Wilson


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Physics Update

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Issues and Events

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News Notes

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Books

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Quick Study

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