September 2000 Volume 53, Number 9
September 2000 cover
Cover: Three now-empty T5 bacteriophages, shown in green, have injected their DNA into a liposome (a model bacterial cell, shown here in pale blue). Using its tail (yellow) as a conduit, the remaining bacteriophage (red) is about to follow suit. Meanwhile, subtle electrostatic effects inside the liposome have caused the bacteriophage DNA to form a tightly wound toroidal structure (dark blue). To learn more about these effects, turn to the article by William Gelbart, Robijn Bruinsma, Philip Pincus, and Adrian Parsegian, which begins on page 38. (Electron micrograph courtesy of Olivier Lambert.)

 

  Articles

Physics in the Whirlwind of Optical Communications
Accelerating demands for high-speed communications are driving rapid innovations in lightwave communication, including versatile, high-bandwidth fibers, sources, amplifiers, and switches -- Gordon A. Thomas, David A. Ackerman, Paul R. Prucnal, and S. Lance Cooper

DNA-Inspired Electrostatics
Not just the repository of our genetic information, DNA is also a fascinating, shape-shifting molecule whose behavior in solution counters our intuition and challenges our physical understanding -- William M. Gelbart, Robijn F. Bruinsma, Philip A. Pincus, and V. Adrian Parsegian

Hot Prospects for Ultracold Molecules
Researchers have taken giant strides down several paths toward trapping molecules at submillikelvin temperatures. At the end of these paths lies the promise of more precise measurements and new phenomena -- Barbara Goss Levi


  Departments

Physics Update

Letters
Quantum Theory - Interpretation, Forumation, Inspiration
Fuchs and Peres reply:
Physics, Engineering Are Intimately Independent
Single Photon's Nondestruction Clarified
Low Dose Rates Need Consideration in LNT?
Corrections

Search and Discovery
Organic material debuts as both an injection laser and a superconductor
Solid-state NMR reveals key structural features of membrane transportation system
Theorists and experimenters seek to learn why gravity is so weak
Pulse shaping improves efficiency of soft x-ray harmonic generation

American Vacuum Society to Convene in Boston

Physics Community
UK astronomers face tough decisions on telescope closures
Fusion community cheers European bid for ITER
Journal cost studies again ruled fair
Slice of millimeter spectrum saved for science
Physics Olympiad 2000 held in UK
In Brief
Web Watch

Books
The Genius of Science: A Portrait Gallery, A. Pais (reviewed by S. S. Schweber)
Rare Earth: Why Complex Life Is Uncommon in the Universe
, P. D. Ward and D. Brownlee (reviewed by L. Krauss)
Carl Sagan: A Life in the Cosmos, W. Poundstone, and Carl Sagan: A Life, K. Davidson (reviewed by D. H. DeVorkin)
Quintessence: The Mystery of Missing Mass in the Universe, L. Krauss (reviewed by M. S. Turner)
Introduction to Semiconductor Physics, H. T. Grahn (reviewed by E. D. Jones)
The Lyotropic State of Matter: Molecular Physics and Living Matter Physics, A. G. Petrov (reviewed by R. Podgornik)
Biology in Physics: Is Life Matter?, K. Bogdanov (reviewed by H. C. Berg)
New books

New Products
Focus on cryogenics

We Hear That
AGU Presents Awards and Medals in Washington
Astronomical Society of the Pacific Presents Awards
In brief

Obituaries
Hendrik Brugt Gerhard Casimir
David George Crighton
Michael Marinov
Kandarpa Narahari Rao
Douglas MacPherson Van Patter
Katherine Ella Mounce Weimer

Job Opportunities

 

© 2000 American Institute of Physics