A new technique measures each unit of charge that accumulates on a submerged plastic bead, unprecedented resolution for a liquid-solid interface and an experiment that may benefit a variety of commercial devices and processes.
An improved version of a technique for folding tiny objects from a thin membrane uses a magnetic field to affect the shape. The membrane wraps around a droplet of fluid that distorts in response to the field.
Phys. Rev. Focus28, 12 (2011) – Published September 23, 2011
Experimentalists have mapped the quantum states (band structure) of cold atoms mimicking electrons in a crystal. The technique should allow researchers to study new aspects of electrons in crystals using the atoms as a model.
Phys. Rev. Focus28, 10 (2011) – Published September 9, 2011
Calculations suggest that a rapidly spinning oxygen nucleus can deform into a linear configuration of four small clusters in a row–the first clear evidence for such a “linear-chain” state in any nucleus.
Phys. Rev. Focus28, 8 (2011) – Published August 19, 2011
Analysis of newly retrieved navigational data for the Pioneer 10 and 11 spacecraft suggests that an anomalous acceleration in their motion is steadily decreasing, pointing to asymmetric radiation of heat as the likely cause, rather than the more exotic explanations previously proposed