Issues
Letters
Imaging technologies need trained practitioners
Cocktail party at the beginning of the universe
Domingo de Soto, early dynamics theorist
Making partners of universities and corporations
Correcting the record of manmade VLF radiation
Search and Discovery
Direct imaging reveals exoplanets in orbital motion
If a planet orbiting another star is young enough, the afterglow from its heat of formation may be adequate for imaging.
Pressure unites two regimes of fluid breakup
Bubbles of xenon near the gas’s critical point are so dense that they behave like drops of water, not bubbles of air.
Physics Update
Issues and Events
Nuclear weapons at a crossroads as Obama enters office
Modernized warheads and new production facilities are on hold pending an updated nuclear policy demanded by Congress.
Applying Title IX to university science departments
Some federal funding agencies are reviewing the treatment of female students and faculty members in university departments they fund. Can such spot checks lead the way to gender equity?
DOE invites partners in green technology
“Entrepreneurs-in-residence” aim to spin off labs’ energy technologies.
News notes
Articles
Solving quantum field theories via curved spacetimes
Strongly interacting quantum field theories are notoriously difficult to work with, but new information about some of them is emerging from their surprising correspondence with gravitational theories.
Carbon nanotube electronics and photonics
Their geometry, mechanical flexibility, and unique charge-transport properties make carbon nanotubes ideally suited to supplant silicon in the next generation of FETs.
Panofsky agonistes: The 1950 loyalty oath at Berkeley
In 1949–51 the University of California was seriously damaged by a loyalty-oath controversy. Wolfgang Panofsky, a promising young physics professor at Berkeley, was caught up in the turmoil.
Opinion
Solar variability does not explain late-20th-century warming
Books
William and Lawrence Bragg, Father and Son: The Most Extraordinary Collaboration in Science
New Products
Obituaries
Theodore Eugene Madey
Julius Erich Wess
Quick Study
The versatility of nanoscale mechanical resonators
The vibrations of tiny “diving boards” enable scientists to view the world one atom at a time and may allow the observation of quantum effects in mechanical systems.