Search and Discovery
In a material with a negative dielectric constant and negative permeability, convex lenses are diverging and Cerenkov radiation is emitted backward.
Thanks to its superb sensitivity, angular resolution, and positional accuracy, NASA's Chandra x‐ray observatory has detected nearly all the individual sources that collectively make up the cosmic x‐ray background.
As the torch passes to RHIC, the heavy‐ion program at CERN takes stock of six years of Pb‐beam results.
One scientist's work provides material for an entire course, covering topics ranging from hydrodynamic stability and turbulence to electrohydrodynamics and the locomotion of small organisms.